A grandfather clock keeps time using a pendulum. Which will be true of the clock if the pendulum is shortened? Question 10 options:
It will run slow.
It will run fast.
It will keep the same time.
It will depend on the bob’s mass.

Nitrogen fixing bacteria changes dead plants and animals into ammonia compounds.

Atmospheric nitrogen is converted into nitrogen oxides by the action of lightning, which helps its incorporation into the soil.

Therefore, we can conclude that nitrogen fixing bacteria fix nitrogen from the air, that is, they originate soluble compounds by plants, such as ammonia.

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Answer:

Explanation:

Nitrogen fixing bacteria

Answer:

your mom

Explanation:

Answer:

1.Copper electrical wires are safer to use than wires made of most other conductive metals because they are resistant to heat. As you can see, copper is the preferred metal for electrical wires for several reasons. It has high electrical conductive; it's inexpensive; it's ductile; and it's thermal resistant.

2.Tungsten is used for making filament of an electric bulb due to the following reasons: Being an alloy it has a very high melting point. It has very high resistivity so it does not burn easily at room temperature. The lamp glows at high temperatures.

3.Confused about choosing between CFL bulbs vs. LED bulbs? Since 2014, government regulations have been pushing consumers to replace familiar incandescent light bulbs with more energy-efficient compact fluorescent lamp (CFL) and light-emitting diode (LED) bulbs.Advances in both CFL and LED technologies have expanded consumer choice — yet make evaluating your options a little more complex. Knowing how different kinds of light bulbs stack up against each other will help you not only get the right lighting for any given space but also save energy in the process.

Answer:

a) 35 kPa

d) 140 N

c) 1) Increasing the brake fluid  pressure

2)  Increasing the slave piston surface area.

Explanation:

The parameters given are;

a) Force applied to the master cylinder piston = 28 N

Cross sectional area of the master cylinder piston = 8 cm² = 8 × 10⁻⁴ m²

The pressure P on the brake fluid is given by the formula for pressure as follows;

\(P= \dfrac{Applied \ force}{Area \over \ which \ force \ is \ applied} = \dfrac{28 \, N}{8 \times 10^{-4} \, m^2} = 35,000 \, N/m^2 = 35,000 \, Pa\)

The pressure on the brake fluid, P, produced by the master cylinder piston = 35,000 Pa = 35 kPa

b) Given that the area of the slave piston = 40 cm² = 0.004 m², we have from the formula for pressure, P;

\(P= \dfrac{Applied \ force}{Area \over \ which \ force \ is \ applied} = \dfrac{Applied \ force}{4 \times 10^{-3} \, m^2} = 35,000 \, N/m^2\)

Therefore;

Applied force on the slave piston = 4 × 10⁻³ m² × 35,000 N/m² = 140 N

c) The force, F produced by the slave cylinder piston is given by the relation;

F = Pressure × Area

Therefore, the two ways of increasing the force produced by the slave cylinder piston is as follows;

1) Increasing the pressure in the brake fluid by increasing the force exerted by the master cylinder piston

2) Increasing the surface area of the slave piston.

Pieces of burning vegetation that are spread by air currents and spread downwind are known as "brands."

When a wildfire occurs, burning vegetation can release embers or pieces of burning material into the air. These embers, often called "brands," can be carried by air currents and spread downwind, potentially igniting new fires and causing the fire to spread rapidly.

Brands are a significant concern during wildfires as they can travel long distances and start spot fires ahead of the main fire front. Factors such as wind speed, direction, and the flammability of surrounding vegetation determine how far brands can travel and how quickly they can ignite new fires.

Firefighters and fire management personnel closely monitor and address brands during firefighting operations to prevent the further spread of the fire. Controlling and extinguishing spot fires caused by brands is crucial in minimizing the overall impact and size of a wildfire.

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One factor that affects the amount of friction is roughness or smoothness of the sliding object.

There are several factors affecting the amount of friction and they include the following;

Thus, one factor that affects the amount of friction is roughness or smoothness of the sliding object.

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Answer: It depends on the surface is the surface bumpy? Or is the surface flat and smooth?

Explanation: If a surface is to bumpy friction slows it down, if a surface is flat and smooth it glides with ease.

Answer:

Final momentum after a head on collision is -2kgm/

Explanation:

  One ball moves to the right and the other moves opposite  and momentum is a vector quantity so that considering the direction

Initial momenta are        P₁=2x3=6kgm/s        P₂=4x(-2)=-8kgm/s      

Final momentum is the vector sum of P(final)= 6-8= -2 kgm/s

Her jumper would appear dark and drab, practically a dark shade of gray, if Ray shone a green filter on it.

This is so because the wavelengths of light that an object reflects define its color. In the case of red clothing, it reflects red light with wavelengths between 620 and 750 nm. The green filter, however, blocks all other wavelengths, including red ones, and only allows green light wavelengths (between 495 and 570 nm) to get through when it is positioned in front of the red jumper.

We wouldn't see the colour red because red wavelengths are blocked and red clothing can't reflect them back to our eyes. Instead, we would observe the dark and dreary greyish-green color that is produced when residual green wavelengths combine with the color of the red garment.

The interaction between green filter's color wavelengths and red jumper's color wavelengths causes red jumper to appear as a dark and dreary greyish-green color when green filter is shone upon it.

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Answer:

D. 75 watts

Explanation:

brainliest please? i've just answered 3 of your questions and they were all correct! :) i hope i helped!

Answer:

(D) =75 WATTS

Explanation:

p(power)=i(current)×v(voltage)

p = 0.625 × 120

p =75 watts

The magnetic field of \(1.16 * 10^{-4}\) Tesla would be required to cause an electron to undergo the same circular motion as in the simplified model of the hydrogen atom.

This can be determined using the equation for the magnetic field required for a charged particle to move in a circular path, which is B = (mv)/qR, where B is the magnetic field, m is the mass of the electron, v is its velocity, q is its charge, and R is the radius of the circular orbit.

Substituting the given values into this equation, we get

\(B = (9.11 * 10^{-31}  kg * 2 * pi * 5.3 * 10^{-10}  m * 6.6 * 10^{15} Hz)/(1.6 * 10^{-19}C)\)

= \(1.16 * 10^{-4}\)
Therefore, a magnetic field of \(1.16 * 10^{-4}\) Tesla would be required to cause an electron to undergo the same circular motion as in the simplified model of the hydrogen atom.

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Answer:

A. Energy only is the answer to your question

Answer:

B. Millions of years of high pressure and temperature.

Explanation:

Fossil fuels were formed from the dead remains of living organisms millions of years ago. They were formed under high pressure and high temperature.

Coal, Petroleum and natural gas are fossil fuels.

The obvious differences between the beam observations and cylinder observations are that the maximum value of the cylinder observations is higher and the observations for cylinders are more variable or spread out.

In the above case, the material strength observations in Mega Pascals for cylinder and beams are given.

The values for cylinders are as follows

6.1, 5.8, 7.8, 7.1, 7.2, 9.2, 6.6, 8.3, 7.0, 8.3, 7.8, 8.1, 7.4, 8.5, 8.9, 9.8, 9.7 14.1, 12.6 11.2, 8.1, 7.4, 8.5, 8.9, 9.8, 9.7, 14.1, 12.6, 11.2

And the values for beams are

5.9, 7.2, 7.3, 6.3, 8.1, 6.8, 7.0, 7.6, 6.8, 6.5, 7.0, 6.3, 7.9, 9.0, 8.2 , 8.7, 7.8, 9.7, 7.4, 7.7, 9.7,7.8, 7.7, 11.6 11.3 11.8 10.7,8.2, 8.7, 7.8, 9.7, 7.4, 7.7, 9.7, 7.8, 7.7, 11.6, 11.3, 11.8, 10.7

From the above-given values, we can calculate the mean/average value of the observations.

The average value for cylinders comes out to be 8.57.

The average value for beams comes out to be 8.14.

Among the given values, the maximum value is 14.1 for cylinder observations.

The values of beam observations range from 5.9 to 11.8 while the values for cylinder observations range from 5.8 to 14.1. Therefore, the observations for the cylinder are more variable or spread out.

Thus, the maximum value of the cylinder observations is higher and the observations for cylinders are more variable or spread out.

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This question is incomplete. The data used for solving the question is given in the adjoining image.

A free-body diagram of a ball in free fall in the presence of air resistance would show a downward arrow to represent the force of gravity and an upward arrow to represent the force of air resistance.

A free-body diagram can be defined as a graphical (diagrammatic) illustration that is typically used to visualize moments, tension, and applied forces acting on an isolated (rigid) body while using arrows pointing in the direction of these forces. Free Body Diagrams (FBD) are useful aids for representing the relative magnitude and direction of all forces acting upon an object in a given situation. The gravitational force is an interaction between two objects with mass. For a falling ball, the two objects with mass are the Earth and the ball. The strength of this gravitational force is proportional to the product of the two masses, but inversely proportional to the square of the distance between the objects.

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Two cars, each having a mass of 1,000 kg are being tested at the Department of Highway Safety facility. Car A is moving at 30 m/s to the north. Car B is moving at 15 m/s to the south. When they collide a- Car A applies a greater force on car B than car B applies on car A.

Momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction. Isaac Newton's second law of motion states that the time rate of change of momentum is equal to the force acting on the particle.

When both the cars will collide , one with greater momentum will applies greater force .

As momentum is calculated  as mass multiplied by velocity , since both the car have same mass then the car with a greater velocity will exert more force on the other car .

since , car A has a velocity of 30 m/s and car B is moving with a velocity of 15 m/s , then car A will have greater momentum and will exert  a greater force on car B.

correct option will be

a- Car A applies a greater force on car B than car B applies on car A.

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Answer:

1467 atoms

Explanation:

5730 yrs = carbon 14 half life

10 740 / 5730 = 1.87 half lives

400 = C (1/2)^1.87

C = original = ~1467 atoms

Answer:

25 m/s

Explanation:

Momentum = mass × velocity

Given that,

velocity  = Momentum ÷ mass

velocity = 1800 ÷ 72

velocity = 25 m/s

Answer: 17 hours

Explanation:

Answer:

about 30 km

Explanation:

about 30 km

The event horizon radius of a non- rotating 10 solar mass black hole is about 30 km.

Answer:

A) Sue is lifting the bucket by a force of 49.035 newtons.

B) The bucket has an acceleration of 8.207 meters per square second on the Moon.

Explanation:

A) According to the First Newton's Law, a system is at equilibrium when it is either at rest or travelling at constant velocity. In this case, Sue must exert an external force on the bucket, whose magnitude is equal to the weight of the bucket but direction is opposed to it. By Second Newton's Law, we find that:

\(\Sigma F = F - m\cdot g = 0\) (1)

Where:

\(F\) - Lifting force, measured in newtons.

\(m\) - Mass of the bucket, measured in kilograms.

\(g\) - Gravitational acceleration, measured in meters per square second.

If we know that \(m = 5\,kg\) and \(g = 9.807\,\frac{m}{s^{2}}\), then the lifting force is:

\(F = m\cdot g\)

\(F = (5\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)\)

\(F = 49.035\,N\)

Sue is lifting the bucket by a force of 49.035 newtons.

B) By the Second Newton's Law, we have the following model:

\(\Sigma F = F-m\cdot g = m\cdot a\) (2)

Where \(a\) is the net acceleration of the bucket, measured in meters per square second.

If we know that \(F = 49.035\,N\), \(m = 5\,kg\) and \(g = 1.6\,\frac{m}{s^{2}}\), then the net acceleration of the bucket is:

\(a = \frac{F}{m} -g\)

\(a = \frac{49.035\,N}{5\,kg}-1.6\,\frac{m}{s^{2}}\)

\(a = 8.207\,\frac{m}{s^{2}}\)

The bucket has an acceleration of 8.207 meters per square second on the Moon.

(a) The force applied by Sue in lifting the bucket at a constant velocity is 49 N.

(b) The acceleration of the bucket when lifted on the moon is 8.2 m/s².

The given parameters;

The force applied by Sue in lifting the bucket at a constant velocity is calculated as;

\(F = m(a + g)\)

\(F= mg\\\\F = 5 \times 9.8\\\\F = 49 \ N\)

The acceleration of the bucket when lifted on the moon with the calculated force is;

\(F = m(a + g)\\\\a+g = \frac{F}{m} \\\\a = \frac{F}{m} - g\\\\a = \frac{49}{5} - 1.6\\\\a = 8.2 \ m/s^2\)

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Answer:

It obeys Newton's third law of motion.

Explanation:

The experiment obeys Newton's third law of motion because when the air in the balloon is released, the air moves in the downward direction which is an action of the balloon so in the reaction, the balloon moves in upward direction   so both action and reaction forces are equal in magnitude but moves in opposite direction which obeys Newton's third law of motion.

It is the process of energy being converted into another type of energy.

The outside diameter or side dimension of the vibrating element must be at least 19 mm but not greater than 38 mm is true. A vibration sensor is a system that is used to identify the condition of machinery and prevent it from being harmed. It keeps track of vibrations in the machinery and sends an alert if it exceeds a set threshold.

A sensor that detects vibrations in the environment or within a physical structure is known as a vibration sensor. Vibration sensors are commonly utilized in the maintenance of rotating equipment like pumps, motors, and other machinery to predict failure before it happens.

Based on the vibration being observed, these sensors may detect a range of defects, from unbalance and misalignment to bearing wear and looseness.

The outside diameter or side dimension of the vibrating element must be at least 19 mm but not greater than 38 mm. Hence, the given statement is true. This size range is important for the sensor to be able to pick up on the machinery's small vibrations and changes.

Anything smaller than 19 mm will not detect vibrations with the same precision, and anything larger than 38 mm will be more difficult to install in tight locations.

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The Lyman series is in the ultraviolet region, while the Paschen, Brackett, and Pfund series are all in the infrared region of the electromagnetic spectrum.

These series represent the different sets of spectral lines corresponding to electron transitions in the hydrogen atom.

1. Lyman series: This series corresponds to electron transitions from higher energy levels to the first energy level (n=1). The lines in the Lyman series are found in the ultraviolet (UV) region of the electromagnetic spectrum.

2. Paschen series: This series corresponds to electron transitions from higher energy levels to the third energy level (n=3). The lines in the Paschen series are found in the infrared (IR) region of the electromagnetic spectrum.

3. Brackett series: This series corresponds to electron transitions from higher energy levels to the fourth energy level (n=4). The lines in the Brackett series are also found in the infrared (IR) region of the electromagnetic spectrum.

4. Pfund series: This series corresponds to electron transitions from higher energy levels to the fifth energy level (n=5). The lines in the Pfund series are found in the infrared (IR) region of the electromagnetic spectrum as well.

In summary, the Lyman series is in the ultraviolet region, while the Paschen, Brackett, and Pfund series are all in the infrared region of the electromagnetic spectrum.

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Here is your Answer:-

Conduction is how heat transfers through direct contact with objects that are touching. Any time that two objects or substances touch, the hotter object passes heat to the cooler object. (That hot sand passed the heat energy right into my poor feet)!

Answer:

Conduction is the transfer of thermal energy from one object to another through the movement of molecules. Heat flows from one molecule to another because the particles are in direct contact with one another.

In the following question, among the various parts to solve on visible spectrum.- A. Red light has a longer wavelength than violet light. B. Violet light has a higher frequency than red light. C. Violet light has greater energy than red light.

Violet and red light from the visible spectrum can be compared based on their wavelengths, frequencies, and energies. Violet light has a shorter wavelength, higher frequency, and greater energy than red light. The answers to the specific questions are: Which has the longer wavelength? Red light has a longer wavelength than violet light. Which has the greater frequency? Violet light has a higher frequency than red light. Which has the greater energy? Violet light has greater energy than red light. An HTML-formatted answer would look like this:

Violet and red light from the visible spectrum can be compared based on their wavelengths, frequencies, and energies. Violet light has a shorter wavelength, higher frequency, and greater energy than red light. The answers to the specific questions are:

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Answer:

A team may contact the ball a total of three (3) times before it is sent over the net.

Answer: A

Explanation:

Answer:

A. You would weigh the same on both planets because their masses and the distance to their centers of gravity are the same.

Explanation:

A pe x :)

To calculate the initial speed of the bullet, we can use the principle of conservation of momentum and conservation of energy. The bullet of mass 3.8 g strikes a ballistic pendulum of mass 4.6 kg, causing the center of mass of the pendulum to rise at a vertical distance of 10 cm.

According to the principle of conservation of momentum, the total momentum before the collision is equal to the total momentum after the collision. Since the bullet remains embedded in the pendulum, the total momentum after the collision is zero. Therefore, the initial momentum of the bullet is equal to the final momentum of the combined system (pendulum with the bullet embedded).

The initial momentum of the bullet can be calculated as the product of its mass and its initial velocity. Let's denote the initial speed of the bullet as v. The final momentum of the combined system is zero because the pendulum with the embedded bullet comes to rest after the collision.

Using the conservation of momentum, we can equate the initial momentum of the bullet to zero:

\((mass of bullet) * (initial velocity of bullet) = 0\)

Solving this equation for the initial velocity of the bullet, we can find the value in the desired units.

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Answer:

Explanation: