a radio telescope and an optical telescope of the same diameter have the same angular resolution. group of answer choices true false

Answer:

the mother

Explanation:

the child is smaller and has less mass so it would be easier to push the baby rather than the mother. so you would put more force into pushing the mother

The velocity of a body or object determines its direction of motion. Speed is a scalar quantity in its most fundamental form. Velocity is essentially a vector quantity. It is the rate of change in distance. The displacement change rate is the issue.

The rate at which an object's position changes when observed from a specific point of view and when measured against a specific unit of time is known as its velocity.

V = u + a*t

V = 2 + 0.20 * (2.5*60)

V = 32 m/s

The rate at which the speed and direction of a moving object change over time is known as acceleration. Something is said to be accelerating when it starts to move faster or slower. Motion on a circle accelerates even while the speed is constant because the direction is always changing. Due to the frequent change in direction, motion on a circle accelerates even while the speed is constant.

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Answer:

Nuclear reactors are the heart of a nuclear power plant. They contain and control nuclear chain reactions that produce heat through a physical process called fission. That heat is used to make steam that spins a turbine to create electricity

~+lil more info!+~

What material is used to power a nuclear reactor?

uranium !

All commercial power reactors are based on nuclear fission. They generally use uranium and its product plutonium as nuclear fuel, though a thorium fuel cycle is also possible.

Answer: \(37.28^{\circ}\)

Explanation:

Given

Angle made with the x-axis is \(\alpha=70^{\circ}\)

Angle made with the y-axis is \(\beta=60^{\circ}\)

Suppose angle made with z-axis is \(\gamma\)

\(\therefore \cos^2\alpha+\cos^2\beta+\cos^2\gamma =1\)

Inserting values

\(\Rightarrow \cos^2(70^{\circ})+\cos^2(60^{\circ})+\cos^2\gamma=1\\\Rightarrow 0.1169+0.25+\cos^2\gamma=1\\\Rightarrow \cos^2\gamma=0.6331\\\Rightarrow \cos \gamma=0.7956\\\Rightarrow \gamma=37.28^{\circ}\)

129°F

129°F as Celsius

\(c = (f - 32) \times \frac{5}{9} \)

\(c = (129 - 32) \times \frac{5}{9} \)

\(c = 53.8889 \: degrees \: celsius\)

Explanation:

friction opposes the relative motion between two bodies,hence it decreases the kinetic energy but, in the view that friction supplies the force that accelerates the object , for example friction helps in walking we can say that friction causes an increase in kinetic energy

Answer:

In most situations, frictional forces tend to reduce the kinetic energy of an object. However, frictional forces can sometimes increase an object's kinetic energy.

The maximum value of the average normal stress in the links connecting (a) points b and d is 101.56MPa and (b) points c and e is -21.7MPa.

Stress refers to the measure of an external force acting over the cross-sectional area of an object and is given as units of force per area: N/m2 (SI) or lb/in2 (US). The SI units are commonly referred to as Pascals (Pa). There are two types of stress experienced by normal stress and shear stress. When a force acts perpendicular to the surface of an object, it exerts a normal stress while when a force acts parallel to the surface of an object, it exerts a shear stress. In order to determine the average normal stress in the links provided, consider the bar ABC as a free body as attached. The moment of a force is the product of the force and the distance from the axis of rotation. Hence,

∑Mc = 0 where Mc is the summation of moment at point C

(0.04)FBD – (0.025 + 0.04)(20x10^3) = 0

(0.04)FBD – 1.3x10^3 = 0

FBD = 32.5x10^3 N (Link BD is in tension)

∑MB = 0 where MB is the summation of moment at point B

-(0.04)FCE – (0.025)(20x10^3) = 0

-(0.04)FCE – 0.5x10^3 = 0

FCE = -12.5x10^3 N (Link CE is in compression)

Net area of one link in tension = (0.008)(0.036-0.016) = 160x10^-6 m^2

Hence for two parallel links A = 320x10^-6 m^2

Net area of one link in compression = (0.008)(0.036) = 288x10^-6 m^2

Hence for two parallel links A = 576x10^-6 m^2

a) σBD = FBD/A = 32.5x10^3/320x10^-6 = 101.56x10^6 = 101.56MPa

b) σCE = FCE/A = -12.5x10^3/576x10^-6 = -21.7x10^6 = -21.7MPa

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Answer:

I think it's 5.00 N

Explanation:

It is impossible to for a heat engine to be 100 % efficient because  

The basic principle behind a heat engine is to convert thermal energy (heat) into useful work. A heat engine works by absorbing heat from a high temperature source and converting it into work, and then rejecting the remaining heat to a low temperature sink. The efficiency of a heat engine is defined as the ratio of the work output to the heat input.

However, it is impossible for a heat engine to be 100% efficient because some heat is always lost to the environment. This lost heat is due to various factors such as friction, thermal conduction, and other sources of inefficiency within the heat engine.

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The process that water redeposit into a lake in the form of rain is precipitation.

Water runoff occurs when there is more water than land can absorb.

The water flows across the surface of the land and into nearby creeks, streams, or lakes.

Runoff can come from both natural processes and human activity.

When rain falls to the earth from clouds and runs downhill into rivers and lakes.

During evaporation, the water turns from liquid into gas, and moves from oceans and lakes into the atmosphere where it forms clouds.

Precipitation is any liquid (rain) or frozen water that forms in the atmosphere and falls back to the Earth, for example it could fall on land or into lakes and rivers.

Thus,  the process that water redeposit into a lake in the form of rain is precipitation.

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Option A. An electromagnetic wave at very long wavelength (low frequency) best describes a radio wave.

A radio wave is best described as an electromagnetic wave at a very long wavelength or low frequency. It is not a pressure wave. Radio waves are a type of electromagnetic radiation, which also includes other forms such as visible light, infrared, and X-rays. The term "wavelength" refers to the distance between two consecutive points in a wave, such as from one crest to the next. In the case of radio waves, the wavelength is quite long, ranging from several millimeters to hundreds of meters. This long wavelength allows radio waves to travel long distances and pass through obstacles such as buildings and trees. Radio waves are used for various purposes, including communication, broadcasting, and radar systems. For example, when you listen to the radio, the sound is encoded onto a carrier wave, which is a specific radio wave frequency. The receiver then extracts the sound from the carrier wave, allowing you to hear it. Similarly, radar systems use radio waves to detect and track objects like airplanes or weather patterns. To summarize, a radio wave is an electromagnetic wave at a very long wavelength or low frequency. It is not a pressure wave. Radio waves are used for communication, broadcasting, and radar systems due to their ability to travel long distances and pass through obstacles. They play a crucial role in everyday life, allowing us to enjoy wireless communication and entertainment.

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Answer:

Voltage.

Explanation:

Answer:

700 N right -->

800- (60+40)

800-100

700 N

(a) The velocity of the object at time t is given by finding the derivative of y (t):

y(t) = -2t2 + t + 10dy(t)/dt

= -4t + 1

Therefore, the velocity of the object at time t is -4t + 1.

(b) The acceleration of the object at time t is given by finding the derivative of the velocity function:

dy(t)/dt = -4t + 1d2y(t)/dt2

= -4

Therefore, the acceleration of the object at time t is -4 m/s2.

(c) The ball hits the ground when y(t) = 0, so we can solve for t by setting -2t2 + t + 10 = 0 and using the quadratic formula:

t = (-b ±  (b2 - 4ac)) / (2a), where a = -2, b = 1, and c = 10.

Plugging these values into the formula, we get:

t = (-1 ±  (12 - 4(-2)(10))) / (2(-2)) = (1 ±  81) / 4

We take the negative root because the positive root corresponds to the ball reaching its maximum height before falling back down. Thus,

t = (1 - 81) / 4

= -2/4

= -0.5 s

To find the velocity of the ball at this time, we plug t = -0.5 into the velocity function we found in part

(a):v = -4t + 1

= -4(-0.5) + 1

= 3 m/s

Therefore, the velocity of the ball at the time it hits the ground is 3 m/s.

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Correlation is a measure of the linear relationship between two variables. It indicates the degree to which a change in one variable is associated with a change in the other variable.

Correlation does not necessarily imply causation, meaning that just because two variables are correlated does not mean that one variable caused the other to change.

There are a few reasons for this. First, correlation does not indicate the direction of the relationship. For example, two variables could be positively correlated (increase together) or negatively correlated (one increases while the other decreases), but correlation alone does not indicate which is the case.

Second, there may be third variables that are affecting both of the variables being correlated. For example, a study might find that ice cream sales are positively correlated with shark attacks.

However, this does not mean that eating ice cream causes people to be attacked by sharks, or that sharks attack more when people are eating ice cream. Instead, the third variable is likely temperature.

On hot days, people are more likely to buy ice cream and more likely to go swimming, which leads to more shark attacks.

In summary, correlation does not necessarily imply causation and other methods, such as experiments, are needed to establish causal relationships.

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Answer:

15 kg

Explanation:

F = m*a

F/a = m

210/14 = 15 kg

Only the charge present inside the cavity can explain the electric field that exists there. The electric field inside the hollow would remain unchanged as a result.

Each point in space has an electric field associated with it when there is charge present in any form. E, often known as electric field strength, electric field intensity, or just the electric field, is a mathematical constant that expresses the strength and direction of an electric field. To predict what would happen to electric charges nearby a specific point, one only needs to be aware of the value of the electric field there, without having any precise knowledge of what generated the field.

When one charge is thought of as the generator of an electric field that spreads outward into the surrounding space, the electric force is not thought of as a direct interaction of two electric charges that are separated from one another.

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Answer:

c

Explanation:

Answer:

C

Explanation:

Answer:

When a branch of a tree is shaken, some of the fruits may fall down. Why? Solution : The fruits fall down due to inertia of rest.

Answer:

I HOPE IT WILL HELP YOU A LOT....

Jupiter's main ingredient are  hydrogen and helium.

Most of Jupiter's mass is made up of hydrogen and helium. More than 87% of Jupiter's mass is made up of these two substances. The planet's total mass of heavy elements, excluding hydrogen and helium, ranges from 11 to 45 M.

Hence, Jupiter's composition, which is mostly hydrogen and helium, is comparable to that of the Sun. In the upper atmosphere, as pressure and temperature rise, hydrogen gas is compressed into a liquid. As a result, Jupiter now has the largest ocean in the solar system, one that is composed of hydrogen rather than water.

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To resolve an object in an electron microscope, the wavelength of the electron beam should be smaller than the size of the object being observed. This is known as the de Broglie wavelength.

The de Broglie wavelength is given by the equation:λ = h/pwhere λ is the wavelength, h is Planck's constant, and p is the momentum of the electron. The momentum of an electron is given by the equation:p = mvwhere m is the mass of the electron and v is its velocity.To obtain a smaller de Broglie wavelength, either the velocity or the mass of the electron must increase. However, increasing the velocity of the electron can lead to aberrations in the image due to diffraction effects. Therefore, the mass of the electron is typically increased by using heavier elements such as uranium as the source material.

To resolve an object in an electron microscope, the wavelength of the electron beam should be smaller than the size of the object being observed. The de Broglie wavelength can be decreased by increasing the mass of the electron, but this is limited by practical considerations. The velocity of the electron should be high enough to provide good resolution, but not so high as to cause aberrations due to diffraction effects. The de Broglie wavelength of the electron beam should be smaller than the size of the object being observed to resolve it in an electron microscope.

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Answer:

1.) 347,000,000

2.)7,940

3.)0.00196

4.)4,500,000,000

5.)0.00000961

6.)102,000

7.).000000000701

8.)44.4

Explanation:

when the power is positive, you just need to move decimal point to your right , for a number of times which is similar to the value of the power.

Eg. 3.47×10 raised to the power 8.

with this, move the decimal point to the right eight times which will be 347,000,000.

But when the power is negative, move the decimal point to the left for a number times which will be similar to the value of the power.

Eg. 1.96×10 raised to the power negative 3.

move the decimal point leftwards three times which will be 0.00196

Please mark as brainliest.

The appropriate statements are A, B, and G.

Visible mild is a kind of electromagnetic radiation that is visible to the human eye. It is one small part of the electromagnetic spectrum, which also includes radio waves, microwaves, infrared radiation, ultraviolet radiation, X-rays, and gamma rays. Visible light has wavelengths between approximately 400 and 700 nanometers and is characterized by its ability to produce sensations of color in the human brain.

When light enters the eye, it passes through the cornea and lens, and is focused onto the retina, where specialized cells called photoreceptors convert the light into electrical signals that are transmitted to the brain. In physics, visible light is important for its role in understanding the behavior of electromagnetic radiation. It has many practical applications, such as in optical communication, microscopy, and astronomy.

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Complete Question:

Primarily based on what you understand approximately observations of the interstellar medium at wavelengths other than for visible mild, select all of the perfect statements from the following listing.

A). The 21-cm radio observations are of impartial hydrogen.

B). much interstellar dust among stars isn't seen.

C). The supply of warm gasoline observed at X-ray wavelengths isn't regarded.

D). All interstellar material is cool.

E). Interstellar dust is observed at ultraviolet wavelengths.

F). Giant molecular clouds consist mostly of CO molecules.

G). Material observed at wavelengths longer than that of visible light is usually cool.

Answer:

C

Explanation:

The starting skill level of the physical activities included in a personal fitness program should be determined from other individuals' fitness programs is a statement which is not true. Everyone starts their personal fitness journey at a different level which should be regarded . A fitness test should be taken to determine where an individual should start their new lifestyle.

Answer:

C. I got it right :)

Explanation:

Answer: Microscope is an instrument that is used for observing micro particles, cells, and nanosized particles.

Explanation:

Placing one hand below the stage of the microscope and other hand must be used to hold the arm of the microscope. This facilitates the safety of the microscope as it will provide support to the entire structure of the microscope and also to the lens and mirrors attached to the structure of the microscope. If any of the part get damaged or lost during carrying it will affect the overall functioning of the microscope.

Answer:

wrapping the electrical cord around the arm of the microscope

Explanation:

just took the test

When a dielectric is added between the capacitor's plates, the capacitor's capacity is enhanced.

The electric field between the two plates is reduced as the dielectric slab is inserted due to some charge distribution in the slab, which enables the capacitor to store more charge. The capacitor's ability to hold charge is subsequently increased.

The potential difference between the plated and the energy stored will decrease when a dielectric is added to a capacitor while the charge on it is maintained constant.

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Answer:

8.37757

Explanation:

may i have brainliest