Who was the discoverer of the neutron
Answers
Answer:
James Chadwick
Explanation:
In May 1932 James Chadwick announced that the core also contained a new uncharged particle, which he called the neutron
He was a physicists and concluded in 1932 that the mass of an atom was located in its nucleus
Related Questions
A gas at and atmospheric pressure fills a cylinder. The gas is transferred to a new cylinder with three times the volume, after which the pressure is half the original pressure. What is the new temperature of the gas?
Answers
The new temperature of gas is 3/2 times of old temperature when a gas at and atmospheric pressure fills a cylinder.
Given the initial volume of cylinder = V1
The initial pressure of gas = P1
The initial temperature of gas = T1
Let the volume of new cylinder = V2
It is given that V2 = 3V1
Let the pressure of new cylinder = P2
It is given that P2 = 1/2P1
Let the new temperature of cylinder = T2
We know that from thermodynamic gas laws that PV = nRT where R is gas constant and n is the number of moles.
Then, P1V1/T1 = P2V2/T2 keeping n constant.
P1V1/T1 = 1/2P1 x 3V1/T2
T2/T1 = 3/2 = 1.5
Then T2 = 3/2T1
Hence the new temperature of gas is 3/2 times of old temperature.
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For the shown frame, if member CB has distribution factor of 0.25 and member CD had distribution factor of 0.21, what is the distribution factor for member CCland CC2. knowing they are equal? *
Answers
The distribution factor (DF) is used to distribute the load from a beam to its supports or the adjacent beams of the grid. Distribution factor of CC1 = 0.38, Distribution factor of CC2 = 0.38.
The DF of a member is the portion of the load that is transferred to the adjacent member or support. Distribution factor of member CB = 0.25, Distribution factor of member CD = 0.21We are required to calculate the distribution factor for members CC1 and CC2, given they are equal. Distribution of the load on CC1 and CC2. The load acting on member CD = 20 kN. The distribution factor of CD = 0.21. Therefore, the load transferred to member CC1 = 0.21 × 20 kN = 4.2 kNAnd, the load transferred to member CC2 = 0.21 × 20 kN = 4.2 kN. Now, let's distribute the load acting on CB.The load acting on member CB = 30 kN. The distribution factor of CB = 0.25Therefore, the load transferred to member CC1 = 0.25 × 30 kN = 7.5 kN And, the load transferred to member CC2 = 0.25 × 30 kN = 7.5 kN. We know that the loads on CC1 and CC2 are equal. Hence, the distribution factor for members CC1 and CC2 is as follows: Distribution factor of CC1 = (4.2 + 7.5) kN / 30 kN = 0.3833 ≈ 0.38Distribution factor of CC2 = (4.2 + 7.5) kN / 30 kN = 0.3833 ≈ 0.38.
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with what force in the rightward direction, fx , should marcel push? if your expression would give a negative result (using actual values) that just means the force should be toward the left.
Answers
The force in the rightward direction, fx , should Marcel push is this force leads to counterclockwise torque. Fx = - (w L2 + w L3 - W Lend) / h.
A force in physics is an effect that changes the velocity, or acceleration, of a mass-moving object. It is a vector quantity since it can be a push or a pull and always has magnitude and direction.
Viewing equilibrium of torque:
W Lend + Fx × h = w L2 + wL3
Fx = (w L2 + w L3 - WLend) / h
In the rightward direction, Fx,
Fx = - (w L2 + w L3 - W Lend) / h
Thus, this force leads to counterclockwise torque.
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The given question is incomplete, so the most probable complete question is,
With what force in the rightward direction, fx , should Marcel push? if your expression would give a negative result (using actual values) that just means the force should be toward the left.
The image of the question is attached below.
You look at a rope coiled on a beach and are able to perceive it as a single strand because of the law of.
Answers
You are able to perceive it as a single strand because of the principle of : Good continuation
Principle of good continuationPrinciple of Good continuation states that objects with very smooth edges are easily seen as been continuous ( i.e as a single strand ) rather than objects or materials with rough edges.
The rope coiled on a beach has very smooth edges therefore can be seen as a continuous strand and this is possible due to the principle of good continuation.
Hence we can conclude that You are able to perceive it as a single strand because of the principle of : Good continuation.
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please answer soon
a car is traveling along the highway at a constant velocity, what must be true about all the forces acting on the car?
Answers
in the city a street peddler offers to sell you a diamond ring for thirty bucks. how could you test if the rock in the ring is a real diamond?
Answers
Answer:
try fogging it up with your breath. If it clears up after one or two seconds, then your diamond is real, but if it stays fogged for three to four seconds chances are that you’re looking at a fake.
HElp ASAP! Select all examples of vectors.
a
Force
b
Speed
c
Velocity
d
Acceleration
e
Magnitude
f
Momentum
Answers
Answer:
A . Force
C . Velocity .
D . Acceleration .
what is the wavelength of the light produced by lasers in cd drives
Answers
The wavelength of the light produced by lasers in CD drives is 780 nm.
The wavelength of the light produced by lasers in CD drives are given below.
A laser is a light source that emits light through a process known as stimulated emission. The term "laser" stands for Light Amplification by Stimulated Emission of Radiation. Lasers emit light coherently, which means that the waves of light they emit are in phase with one another.
Wavelength of Laser Light Lasers are used to read and write data from and to CDs and DVDs. In a CD or DVD player, the laser emits light of a specific wavelength onto the disk.
As a result, the reflection of the laser light is altered. The alterations reflect the 1s and 0s that make up the data stored on the disc, allowing the laser to read the data.
Wavelength of the Light Produced by Lasers in CD Drives. The wavelength of the light produced by lasers in CD drives is around 780 nm (nanometers).
The wavelength of the light produced by lasers in CD drives is 780 nm.
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HELP please!!!!!!!!!!!!!!!
Answers
Hello everyone, Can you help me please I have to hand it in today and I can't do my calculation. Thank you in advance The sound emitted by blue whales has a speed in water of about 1,500 m/s. A male whale looking for a mate emits a sound that returns to him after 4 sec. How far away is the female whale? Give details of your calculation.
Answers
The female whale is approximately 3,000 meters away from the male whale.
To calculate the distance between the male and female blue whales, we can use the formula:
Distance = (Speed of sound in water × Time) / 2
Given that the speed of sound in water is approximately 1,500 m/s and the time taken for the sound to return is 4 seconds, we can substitute these values into the formula:
Distance = (1,500 m/s × 4 s) / 2
Simplifying the equation:
Distance = (6,000 m) / 2
Distance = 3,000 m
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Can someone please answer this, ill give you brainliest Would be very appreciated.
Answers
Answer:
cohesive properties
Explanation:
The property of cohesion allows liquid water to have no tension on the surface.
Answer:
Cohesive properties
Explanation:
Cohesive properties denotes to attraction of particles on surface like sticking with each otherWater has higher cohesive properties so no surface tensionAn inductor is connected to an ac supply. increasing the frequency of the supply _________ the current through the inductor.
Answers
Increasing the frequency of supply will decrease the current through the inductor.
When an inductor is connected to an ac supply, it develops a resistance known as inductive reactance.
The inductive resistance/reactance(XL) is given by the following formula
XL = ω X L
As ω =2πf
XL = 2πf x L
Where ω is the angular frequency and f is the frequency of the AC supply.
When the frequency of AC supply is increased i.e, f is increased, the inductive reactance (XL) is also increased because it is directly proportional to the frequency.
As the resistance of the inductor is increased, the current through it will decrease.
Thus, increasing the frequency of supply will decrease the current through the inductor.
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Elizabeth noticed an increase of Mountain Bluebird sightings in her neighborhood. She wanted to know if there was an increase in the population of the birds or if she was just noticing them more often because of recently learning their name while researching different species of birds. Match the processes Elizabeth used to answer her question to the step of the scientific method that it corresponds to.\
Answers
Answer:
Male Mountain Bluebirds are entirely bright blue above and duller blue-gray below, but this bird has hints of chestnut coloration on his underparts, reminiscent of Eastern and Western Bluebirds. His appearance matches descriptions of hybrids between Mountain Bluebirds and Eastern or Western Bluebirds. These mixed pairs have been recorded multiple times. Their offspring are also usually fertile, evidenced by successful nestings of hybrid adults with pure individuals.
Historical reports of mixed pairs have been most common between Mountain and Eastern Bluebirds, which are more closely related to each other than either is to Western Bluebirds. Many of these reports have come from where the ranges of Mountain and Eastern Bluebirds overlap — in the southern prairie provinces of Canada and the northern Great Plains states of the U.S. However, mixed pairs have been recorded in Nebraska, eastern Minnesota, and even southern Ontario, aided by the wanderlust of Mountain Bluebirds.
Explanation:
SCIENCE
What does the nucleus of the cell control?
A. Life functions
B. Cell transport
C. Waste excretion
D. Energy production
Answers
Answer:
I believe A would be the best answer
Explanation:
Cell transport means things entering and leaving the cell, this would be controlled by the cell membrane
Waste excretion is controlled by the vacuole
Energy production is the mitochondria (the mitochondria is the power house of the cell)
Life functions include cellular reproduction and the nucleus contains the genetic information to do this
Answer:
a
Explanation:
2) A girl walks to the east 40m, to the south 70m and then to
the west 40m, what is the distance.
and displacement of the girl
Answers
The correct answer is 70 meter displacement in the east.
Let's assume that he departs from point O and follows the path ABC.
The man's displacement will be revealed if we join the start and end points of the path he took.
O's distance from A is 40 meters.
70 meters separate A and B.
From B to C, it is 40 meters.
Distance from B to C equals the distance between O and A.
We're looking for the displacement, which is the separation between points O and C.
The opposing sides of a rectangle are equal. Hence A to B is separated by the distance from O to C.
Distance from A to B equals displacement.
70 meter displacement in the east.
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Ethanol boils at 78oc and has a heat of vaporization of 43.3 . determine the heat required, in kj, to raise 4 moles of ethanol from 72oc to 90oc. take the liquid-state specific heat of ethanol to be 0.110 and the gas-state specific heat of ethanol to be 0.078 . your answer should be numerical and neglect units (e.g., if you calculate 3.5kj then input 3.5).
Answers
The total heat needed to raise 4 moles of ethanol from 72°C to 90°C is equal to 257.2 KJ.
What is the specific heat capacity?The specific heat of a substance can be defined as the amount of heat needed to raise the temperature in 1 unit of substance by one-degree Celcius.
Q = mCΔT
The heat needed to raise the ethanol from 72°C to a boiling point of 78°C will be:
Q₁ = 4 × 0.110 × (78°C - 72°C)
Q₁ = 33.6 KJ
To calculate the heat needed to evaporate the ethanol is:
Q₂ = 4 × 43.3
Q₂ = 173.2 kJ/mol
The heat needed to raise the ethanol vapor from 78°C to 90°C. is equal to:
Q₃ = 4 × 0.78 × (90°C - 78°C)
Q₃ = 50.4 KJ
Therefore, the total heat needed to raise 4 moles of ethanol from 72°C to 90°C will be:
Q = 33.6 kJ + 173.2 kJ + 50.4 kJ
Q = 257.2 kJ
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Circle the letter of each sentence that is true about calculating the
acceleration of a moving object.
A.) If an object is moving without changing direction, then its acceleration is the change in its speed during one unit of time.
B.) If an object's speed changes by the same amount during each unit of
time, then the acceleration of the object at any time is the same.
C.) To determine the acceleration of an object, you must calculate the
change in velocity during only one unit of time.
D.) If an object's acceleration varies, then you can describe only average
acceleration.
Answers
Answer: D
Explanation:
By how much do the critical angles for red (660 nm) and blue (470 nm) light differ in flint glass surrounded by air? °Table 25. 2 Index of Refraction n in Selected Media at Various Wavelengths Medium Red (660 Orange (610 Yellow (580 Green (550 nm) nm nm) nm) Water 1. 331 1. 332 1. 333 1. 335 Diamond 2. 410 2. 415 2. 417 2. 426 Violet (410 nm Blue (470 nm) 1. 338 2. 444 1. 342 2. 458 Glass crown 1. 512 1. 514 1. 518 1. 519 1. 524 1. 530 1. 698 1. 665 1. 490 1. 667 1. 492 1. 674 1. 493 1. 684 1. 499 1. 506 Glass, flint 1. 662 Polystyrene 1. 488 Quartz, 1. 455 fused 1. 456 1. 458 1. 459 1. 462 1. 468
Answers
The critical angles for red (660 nm) and blue (470 nm) light differ by approximately 0.064 degrees in flint glass surrounded by air.
The critical angle is the angle of incidence at which light traveling from a medium to a less optically dense medium is refracted along the interface. It can be determined using the equation:
θc = sin^(-1)(n2/n1)
Where θc is the critical angle, n1 is the refractive index of the first medium, and n2 is the refractive index of the second medium.
In the given table, the refractive index values for red and blue light in flint glass surrounded by air are approximately 1.662 and 1.674, respectively. By substituting these values into the equation, we can calculate the critical angles for each wavelength.
For red light:
θc (red) = sin^(-1)(1.674/1.662) ≈ 39.79 degrees
For blue light:
θc (blue) = sin^(-1)(1.674/1.662) ≈ 39.86 degrees
The difference between the critical angles for red and blue light is approximately 39.86 - 39.79 ≈ 0.064 degrees.
Therefore, the critical angles for red and blue light differ by approximately 0.064 degrees in flint glass surrounded by air.
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Paper clip Y is not attracted to the magnet. Which step should the student take to attract it?
O A The student should use a battery with less energy.
O
8
D
The student should use a smaller core in the magnet.
The student should wrap the coil fewer times around the nail.
The student should move the magnet closer to the paper clip.
Answers
Answer:d
Explanation:magnet is to weak
Answer: that means to shut your trap you little turd
Explanation:
a point charge exists in empty space such that at a distance of 3.01 m from the charge, the electric field strength is 7.42 n/c. what is the magnitude of the charge for this point charge? c
Answers
The magnitude of the charge can be calculated using the equation E = kQ/r^2, where E is the electric field strength, k is the Coulomb's constant (8.99 x 10^9 N·m^2/C^2), Q is the charge, and r is the distance from the charge.
what is strength ?
Strength can be defined as the capacity to endure physical, mental, or emotional stress. It can refer to physical strength, mental strength, or emotional strength. Physical strength is the ability to perform physical activities such as lifting weights, running, or pushing objects. Mental strength is the ability to focus on tasks and stay motivated.
Emotional strength is the capacity to handle difficult situations and to remain calm and composed. Strength is a quality that can be cultivated through practice and hard work. It is an important factor in achieving goals, as well as maintaining a healthy lifestyle. Strength can also be developed by setting and achieving goals, practicing visualization techniques, and engaging in activities that challenge one's mental and physical abilities. Additionally, strength can be developed through positive thinking, self-awareness, and self-discipline.
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A 0.60 mW laser produces a beam of light with a diameter of 2.0 mm .
1.What is the average intensity of this beam? Iav = ___kW/m2
2.At what distance does a 160 W lightbulb have the same average intensity as that found for the laser beam in part (a)? (Assume that 5.0% of the bulb's power is converted to light.) r=___cm
Answers
1. The average intensity of the laser beam is 1.19 kW/m².
1. The distance at which a 160 W lightbulb has the same average intensity as the laser beam is approximately 4.47 cm.
To calculate the average intensity, we need to use the formula: Intensity (I) = Power (P) / Area (A). Given that the laser power is 0.60 mW (which is 0.60 × 10^-3 W) and the diameter of the beam is 2.0 mm (which is 2.0 × 10^-3 m), we can find the radius (r) by dividing the diameter by 2, giving us 1.0 × 10^-3 m. The area of the beam is then πr² = π(1.0 × 10^-3 m)². Plugging in the values, we have I = (0.60 × 10^-3 W) / (π(1.0 × 10^-3 m)²) ≈ 1.19 kW/m².
Since we know the power of the lightbulb is 160 W and only 5% of the power is converted to light, we can calculate the effective power of the lightbulb by multiplying the total power by 0.05 (5%). Therefore, the effective power of the lightbulb is 160 W × 0.05 = 8 W. Using the same formula as in part (a), we can rearrange it to find the distance (r): r = √(P / (πI)), where P is the power and I is the average intensity.
Plugging in the values, we have r = √(8 W / (π(1.19 × 10^3 W/m²))) ≈ 4.47 cm.
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7. Let's assume that a voice signal with a frequency band of 300 to 3.4 kHz is sampled at a frequency of 8 kHz. 7-1. Let's say it's made into a multi-level PAM signal with 64 levels and transmitted. If the symbol waveform of the square pulse is used, what is the minimum value of the transmission signal bandwidth? Also, what is the symbol rate? 7-2. When transmitting the PAM signal in the previous problem into binary data by PCM encoding, what is the bandwidth of the transmission signal if a square wave pulse is used? Also, what is the bit rate?
Answers
The minimum value of the transmission signal bandwidth in the case of a multi-level PAM signal with 64 levels, using a symbol waveform of a square pulse, is 8 kHz. The symbol rate is also 8 kHz.
In a multi-level PAM (Pulse Amplitude Modulation) signal, the number of levels determines the number of distinct amplitudes that can be transmitted. In this case, there are 64 levels.
To determine the minimum value of the transmission signal bandwidth, we need to consider the Nyquist criterion. According to the Nyquist theorem, the minimum bandwidth required for a signal is twice the highest frequency component of the signal. Here, the highest frequency component of the voice signal is 3.4 kHz.
Since the voice signal is sampled at a frequency of 8 kHz, the Nyquist criterion tells us that the minimum bandwidth required for transmission is 2 * 3.4 kHz = 6.8 kHz. However, in practice, it is common to choose a slightly higher value to account for the practical implementation considerations. Therefore, the minimum value of the transmission signal bandwidth is rounded up to 8 kHz.
The symbol rate is the number of symbols transmitted per second. In this case, since the voice signal is sampled at 8 kHz, the symbol rate is also 8 kHz.
Moving on to the second part of the question, when transmitting the PAM signal into binary data using PCM (Pulse Code Modulation) encoding, we need to consider the bandwidth and bit rate.
To determine the bandwidth of the transmission signal when using PCM encoding with a square wave pulse, we need to apply the Nyquist criterion again. The Nyquist criterion states that the bandwidth is equal to the highest frequency component of the signal. In PCM encoding, the highest frequency component is half the sampling rate, which is 4 kHz (8 kHz / 2).
Therefore, the bandwidth of the transmission signal when using PCM encoding with a square wave pulse is 4 kHz.
The bit rate is the number of bits transmitted per second. In PCM encoding, each sample of the PAM signal is quantized and represented using a fixed number of bits. Since the symbol rate is 8 kHz and each symbol is represented by 6 bits (64 levels), the bit rate is calculated as 8 kHz * 6 bits = 48 kbps.
In summary, the bandwidth of the transmission signal when using a multi-level PAM signal with 64 levels and a square wave pulse is 8 kHz, with a symbol rate of 8 kHz. When using PCM encoding with a square wave pulse, the bandwidth of the transmission signal is 4 kHz, with a bit rate of 48 kbps.
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I need help with this question and please show the whole work
and do it asap
If a star displays \( 0.0190 \) arcseconds of parallax, then long would it take to travel to that star if traveling at half the speed of light?
Answers
The first step is to convert the parallax angle of the star to distance. We can use the formula: parallax angle in arc seconds = (distance to star in parsecs)^-1 We can rearrange this equation to isolate distance: d = (parallax angle)^-1 Therefore, the distance to the star in parsecs is:
d = (0.0190 arcseconds)^-1 = 52.6 parsecs Next, we need to find the actual distance in meters. One parsec is equivalent to 3.09 × 10^16 meters. Therefore, the distance to the star in meters is: distance = (52.6 parsecs)(3.09 × 10^16 meters/parsec) = 1.63 × 10^18 meters Now, we can use the formula for time: d = vt Solving for time: t = d/v We are told to travel at half the speed of light, which is v = 0.5c, where c is the speed of light.
Therefore, the time to travel to the star is: t = (1.63 × 10^18 meters)/(0.5c) Using the speed of light, c = 3.00 × 10^8 m/s, we get: t = (1.63 × 10^18 meters)/(0.5 × 3.00 × 10^8 m/s)t ≈ 10.9 years Therefore, it would take about 10.9 years to travel to the star if traveling at half the speed of light.
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the actual depth of a shallow pool 1.00 m deep is not the same as the apparent depth seen when you look straight down at the pool from above. how deep will it appear to be? the index of refraction for water is 1.33.
Answers
The objects appear to be closer to the surface than they actually are.
Only when those rays hit our eyes do we perceive an object. In this image, the fish's ray refracts before it reaches the viewer's eye. As a result, the observer sees the fish's apparent depth, Da, at that distance from the surface. Contrarily, fish perceive objects that are farther away than they actually are. Light refraction is the cause of each of these outcomes.Light refracts away from its normal path as a result. According to the incident ray's angle, it doesn't refract at one point and instead travels parallel to the mediums' boundaries. This is the critical angle that we refer to. The incident ray undergoes total reflection rather than refraction if the angle is greater than the critical angle. To find the equation for the critical angle, we now apply Snell's law of refraction.To find more about Snell's law of refraction-
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two ways in which the starting conditions in a protogalactic cloud might cause it to become an elliptical (rather than spiral) galaxy are if the cloud begins with either
Answers
Starting conditions in a protogalactic cloud can lead to the formation of an elliptical galaxy if the cloud begins with a high angular momentum or a lack of cold gas.
High angular momentum: If the protogalactic cloud has a high angular momentum, it will lead to the formation of a rapidly rotating disk. However, if there are significant mergers or interactions with other galaxies, the angular momentum can be transferred to the surrounding environment, causing the disk to lose its rotational motion and become more spheroidal or elliptical in shape. This process is known as angular momentum redistribution. Lack of cold gas: Elliptical galaxies are generally devoid of active star formation and have a lower abundance of cold gas compared to spiral galaxies. If the protogalactic cloud lacks a sufficient amount of cold gas, it will hinder the formation of new stars and result in an elliptical galaxy. This could be due to various factors such as a low initial gas content, strong galactic winds, or intense feedback from massive stars, which expel gas from the system. These two scenarios highlight how the initial conditions of a protogalactic cloud, specifically the angular momentum and the presence of cold gas, play crucial roles in determining whether it will evolve into an elliptical or a spiral galaxy.
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a 1.0-kg ball is moving with a constant speed of 5.0 m/s in a horizontal circle whose diameter is 1.0 m. what is the magnitude of the net force on the ball?
Answers
The magnitude of the net force on the ball moving in a circular path with a constant speed of 5.0 m/s and a radius of 0.5 m is 25.0 N. The centripetal force acting on the ball keeps it moving in the curved path.
To determine the magnitude of the net force on the ball, we need to consider the centripetal force acting on the ball as it moves in a circular path. The centripetal force is responsible for keeping an object moving in a curved path.
In this case, the ball is moving with a constant speed of 5.0 m/s in a horizontal circle with a diameter of 1.0 m. The diameter of the circle is directly related to the radius, which is half the diameter. So, the radius of the circle is 0.5 m.
The centripetal force is given by the equation:
\(F_c = (m \times v^2) / r\)
where F_c is the centripetal force, m is the mass of the ball, v is the velocity of the ball, and r is the radius of the circular path.
Plugging in the given values:
\(F_c = (1.0 kg \times (5.0 m/s)^2) / 0.5\) m
\(F_c = 1.0 kg \times 25.0 m^2/s^2 / 0.5\) m
\(F_c = 25.0 kg m/s^2\)
The magnitude of the net force on the ball is 25.0 N.
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A myelinated axon conducts nerve impulses at a speed of 40 m/s. What is the signal speed if the thickness of the myelin sheath is halved but no other changes are made to the axon?
Answers
If the thickness of the myelin sheath is halved, the speed of the nerve impulses traveling down the axon will be reduced. This is because the myelin sheath acts as an insulator, allowing the nerve impulses to jump from node to node along the axon rather than traveling down the entire length of the axon.
When the myelin sheath is thinner, there is less insulation, and the nerve impulses will slow down.
It is difficult to say exactly how much the speed will be reduced without knowing the specific properties of the axon and myelin sheath, but it is likely that the speed will be less than 40 m/s. Generally, thicker myelin sheaths lead to faster nerve impulse transmission, so halving the thickness will likely result in a significant reduction in speed.
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who invented the satellite what purpose does it serve
Answers
Sputnik 1, the first man-made satellite, was released by the Eastern Bloc on October 4, 1957, as part of the Sputnik project, with Sergei Korolev serving as the program's primary designer.
What is the function of a satellite?There are a large number of satellite in use. They serve several functions, including the Satellite Navigation System, amateur radio, television transmission, and weather prediction. In order to conduct studies and acquire data, they also employ telescopes to gaze outwards at the solar system.
What are the two primary satellite types?Natural and artificial satellite are two distinct categories. The Earth and the Moon are two examples of organic satellites. The Moon orbits the earth while the Earth revolves around the Sun.
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Imagine two planets, Planet A and Planet B, in a distant galaxy. Both planets have the same size but Planet A has more mass than Planet B. Two identical spacecrafts land on each of the planets. Which of the statements is true?
The weight of the spacecraft is greater on Planet A but the mass is the same on both planets
The mass of the spacecraft is greater on Planet A but the weight is the same on both planets
Both the mass and the weight are greater on Planet A.
Answers
Answer:
The weight of the spacecraft is greater on Planet A but the mass is same on both planets.
Mass is same on both planets because mass is always constant which means it doesn't change when place varies.Weight of the spacecraft is more in planet A because it has more value of acceleration due to gravity. (g=GM/R^2)
Thus the first statement is true
Why is it important to regulate temperatures in mammals
Answers
Answer:
If the body temperature falls below this temperature then enzymes will work too slowly for body process to occur fast enough the keep the mammal alive.
Explanation: