assume that block two, m2, does not move relative to the table and that block one, m1, is rotating around the table. what is the speed of block one, m1, in meters per second?

The television commercial loudness increases by 10 decibels.

The decibel (dB) scale is a logarithmic measure of sound intensity. The intensity of a sound is measured in watts per square meter and the decibel scale is a way to express the relative loudness of a sound, compared to a reference level.

A 10 dB increase in intensity is a 10-fold increase in sound power. This means that a sound with an intensity of 10 watts per square meter is 10 times louder than a sound with an intensity of 1 watt per square meter.

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Potential energy converts kinetic energy when the range is shifting from the S pole to the N pole.

If you like, I can put in more detail!

Answer:

Hi... Potential energy is converted to kinetic energy and kinetic energy is converted to potential energy

Answer:

Explanation:

If angle of incidence and angle of refraction be i   and r respectively ,

sini / sinr = μ ( refractive index )

sin r = sin i / μ

If angle of incidence i be constant and medium becomes denser that means μ becomes higher in value , the value of sin r will be low ( because of increase in value of denominator )

As sin r decreases , r also decreases also.

Hence when medium becomes denser , angle of refraction becomes less .

Answer:

A ball is thrown straight up with a speed of 30

m/s. What is the maximum height reached by

the ball?

The duration of the torque imparted to the disc, as the duration is correlated with the angular impulse of the disc is 90s.

Torque times time equals angular impulse. modification of angular momentum. So, Torque times time equals angular momentum change

Angle change is equal to torque multiplied by time.

We already know the torque.

Hence, the duration of the torque acting on the body must be known in order to determine the change in angular momentum.

1. Determining the area under the curve: The area under the graph's curve can be used to compute the impulse, which is equal to the change in angular momentum. The change in angular momentum, which can be used to estimate the size of the angular impulse, is provided by the integral of the graph with respect to time.

2. Calculating the graph's slope: The graph's slope is equal to the system's angular acceleration and shows the rate of change of angular velocity. By dividing the angular acceleration by the period of action, the angular impulse may be computed. As a result, the size of the angular impulse can be calculated by determining the graph's slope

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The average reaction distance is around 1 second at 20 mph. Let's say that the distance covered by the vehicle in 1 second is 8 meters. Therefore, the reaction distance is 8 meters.

Braking distance is the distance the vehicle travels from the time the driver applies the brakes until the time the vehicle comes to a complete stop. This distance is affected by many factors such as road conditions, tire conditions, and the condition of the brakes. On dry roads, the average braking distance is around 4 times the speed of the vehicle in meters.

Let's say the vehicle weighs 1,000 kg and has good brakes and tires. In this case, the braking distance would be around 24 meters (4 x 20 x 0.25).

Therefore,Stopping Distance = Perception Distance + Reaction Distance + Braking Distance= 7.5 + 8 + 24= 39.5 meters.

Now, let's calculate the distance required to stop a vehicle traveling at a speed of 40 mph.

Stopping Distance = Perception Distance + Reaction Distance + Braking Distance.

As the length of the vehicle and the reaction time of the driver do not change, the only variable that changes in this equation is the braking distance.

Therefore, Stopping Distance = Perception Distance + Reaction Distance + Braking Distance= 7.5 + 8 + (4 x 40 x 0.25)= 79 meters.

Therefore, if the speed of a vehicle doubles from 20 mph to 40 mph, the distance required to stop the vehicle increases by 4 times.

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Answer:

2.4m/s²

Explanation:

Given parameters:

Initial velocity  = 0m/s

Time 25s

Final velocity  = 60m/s

Unknown:

Acceleration  = ?

Solution:

Acceleration is the rate of change of displacement

      Acceleration  = \(\frac{Final velocity - Initial velocity}{time}\)

    Acceleration  = \(\frac{60 - 0}{25}\)    = 2.4m/s³

The simple machines that are used in the tool or device include all of the following:

In Science, a simple machine can be defined as a type of machine that is designed and developed with no moving parts, but can be used to perform a specific work.

Additionally, there are six (6) simple machines and these include the following;

Generally speaking, a simple machine allows for the transformation of energy into work.

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Answer:

C. Walk four times per week

Explanation:

If she wants to increase her time then, she has to walk four times per week.

The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is a meter/second. The generally considered unit for speed is a meter per second.

The mathematical expression for speed is given by

speed = total distance /Total time

As given in the problem Lyla walks three times per week for 45 minutes at a speed of 4.0 miles per hour. She must walk four times a week if she wants to extend her time.

Thus, the correct answer is option C.

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The question is incomplete, the complete question is,

Lyla walks three times per week for 45 minutes at a speed of 4.0 miles per hour. She wants to increase her time. What should she do?

A. Walk at 4.5 miles per hour.

B. Walk for 50 minutes.

C. Walk four times per week.

D. Walk up and down more hills.

Speed of light in terms of astronomical unit is 0.12AU/min.

The astronomical unit (symbol: au, or AU) is a measurement of length that is approximately 150 million kilometers (93 million miles) or 8.3 light minutes long, representing the distance between the Earth and the Sun. As Earth orbits the Sun, its actual distance from the Sun changes by roughly 3%, going from its greatest value (aphelion) to its smallest value (perihelion), and back again, once a year. Originally intended to represent the average of Earth's aphelion and perihelion, the astronomical unit has been precisely defined as 149597870700 m since 2012. The astronomical unit is mostly used to calculate distances within or around other stars and other solar systems. It is also a crucial element in the definition of the parsec, another astronomical measure of length.

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The incremental change in Fahrenheit (Δ°F) that corresponds to a temperature change from 15°C to 35°C is 36°F

To calculate the incremental change in Fahrenheit (°F) from a temperature change in Celsius (°C), we use the formula:

Δ°F = Δ°C * (9/5)

In this case, the initial temperature is 15°C, and the final temperature is 35°C. To determine the incremental change in Celsius (Δ°C), we subtract the initial temperature from the final temperature:

Δ°C = 35°C - 15°C = 20°C

Now, we can use the formula to convert the incremental change in Celsius to Fahrenheit:

Δ°F = 20°C * (9/5) = 36°F

Therefore, a temperature change from 15°C to 35°C corresponds to an incremental change of 36°F. This conversion factor (9/5) comes from the relationship between the Celsius and Fahrenheit scales, as they have different zero points and scaling factors.

Specifically, the Celsius scale has a zero point at the freezing point of water (0°C), while the Fahrenheit scale has its zero point at a lower temperature (-32°F). Furthermore, a change of 1°C is equal to a change of 1.8°F, hence the 9/5 factor in the conversion formula.

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Acceleration be a

\(\\ \rm\Rrightarrow a=\dfrac{v-u}{t}\)

\(\\ \rm\Rrightarrow a=\dfrac{1.8-1}{0.03}\)

\(\\ \rm\Rrightarrow a=0.8/0.03\)

\(\\ \rm\Rrightarrow a=26.67km/s^2\)

Question :-

Answer :-

\( \rule {180pt} {2pt} \)

Given :-

To Find :-

Solution :-

As per the provided information in the given question, we have been given that the Initial Velocity of the Meteoroid is 1 km/s . Its Final Velocity is given 1.8 km/s . Time is given as 0.03 seconds . And, we have been asked to calculate the Acceleration of the Meteoroid .

For calculating the Acceleration , we will use the Formula :-

\( \bigstar \: \: \boxed{ \: \sf {Acceleration \: = \: \dfrac{ \: v - ᴜ \: }{ᴛ} \: }} \\ \)

Where ,

Therefore , by Substituting the given values in the above Formula :-

\( \longmapsto \: \: \sf{Acceleration \: = \: \dfrac{ \: 1.8 \: - \: 1 \: }{0.03} } \)

\( \longmapsto \: \: \sf{Acceleration \: = \: \dfrac { \: \: 0.8 \: \: }{ \: \: 0.03 \: \: } } \\ \)

\( \longmapsto \: \: \sf{Acceleration \: = \: 26.72} \\ \)

Hence :-

\( \underline {\rule {180pt} {4pt}} \)

Answer:

DNA IS SMALLEST

NUCLEUS IS BIGGEST

PLEASE MARK BAiniRINIiEST

The speed of the ball seven seconds later is 28.6 m/s.

We have the following information;

initial velocity of the ball = 40 m/s

time taken = 7 seconds

Acceleration of the ball = 9.8 m/s^2

Now;

v = u - gt (the ball is moving upwards)

v = 40 - (9.8 * 7)

v = 28.6 m/s

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Answer:

social justice is the correct answer

Explanation:

The bowling ball experiences the greater magnitude impulse during the collision since it is initially at rest and is given the momentum of the small ball which has a speed of 5m/s.

The impulse of the bowling ball can be calculated using the equation impulse = change in momentum = mvf - mvi, where m is the mass of the bowling ball, vf is its final velocity, and vi is its initial velocity.

Since the bowling ball is initially at rest (vi = 0), the impulse can be calculated as mvf = m(5m/s) = 5m^2/s. The impulse of the small ball can be calculated in the same way, giving an impulse of 5m^2/s. Therefore, the bowling ball experiences a greater magnitude impulse during the collision.

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Answer:

As the temperature is increased the more the energy store

The value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.

When an object collides with another object, they exchange energy. For example, a baseball and bat collision or a car collision. When two objects collide, the force of the collision has to be equal on both sides of the collision according to Newton's Third Law. So, to find the value of force, we will apply the equation:

F = ΔP / ΔT

where F is the force, ΔP is the change in momentum, and ΔT is the time of collision. The equation represents the impulse momentum theorem.

Now, let's apply the given values to the above equation.

Final momentum (p2) = mass × final velocity (v2)

p2 = 0.15 kg × (-50 m/s)

p2 = -7.5 kg.m/s

Initial momentum (p1) = mass × initial velocity (v1)

p1 = 0.15 kg × (40 m/s)

p1 = 6 kg.m/s

Change in momentum (ΔP) = p2 - p1

ΔP = -7.5 kg.m/s - 6 kg.m/s

ΔP = -13.5 kg.m/s

Time of collision (ΔT) = 8.0 × 10³ s

Now, putting the values of ΔP and ΔT in the equation of impulse momentum theorem, we get:

F = ΔP / ΔT

F = -13.5 kg.m/s ÷ 8.0 × 10³ s

F = -1.7 × 10⁻³ N

Thus, the value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.

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Given:

Thermal energy is denoted by W

Chemical energy is denoted by X

Electrical energy is denoted by Y

Kinetic energy is denoted by Z

To find the order of energy while converting bagasse to electricity.

Explanation:

The bagasse has chemical energy stored in it.

The bagasse is burned, so chemical energy gets converted into thermal energy.

The thermal energy gets converted into kinetic energy.

The kinetic results in the motion of electrons.

Thus, producing electrical energy.

Hence, the conversion order is XWZY

Answer:

22 m

Explanation:

Answer:

cliff height = 10.55 m

Explanation:

Remarks

Solution

Time

So the time taken is d = r * t  

Remember, this formula can only be used when there is no acceleration.

d = 22 meters

r = 15 m/s

t = ?

t = d / r

t = 22 / 15

t = 1.467

Height of the Cliff

vi = 0 (vertially)

a = 9.8 m/s^2

t = 1.467 seconds    The time horizontally and vertically is the same.

d = ?

Formula

d = vi*t + 1/2 a t^2

Solution

d = 0 + 1/2 * 9.8 * 1.467^2

d = 10.55 meters.

The correct answer is C. A central bright spot with one dimmer spot on each side can be seen.

When diffraction of light occurs with a single slit, a phenomenon known as single-slit diffraction takes place. This phenomenon causes the light waves passing through the slit to spread out and interfere with each other, resulting in a pattern of dark and bright fringes on a screen placed behind the slit.

The central bright spot corresponds to the region on the screen where the light waves passing through the center of the slit interfere constructively. This means that the waves are in phase and reinforce each other, creating a bright spot.

On either side of the central bright spot, there are additional spots that are progressively dimmer. These dimmer spots correspond to regions where the waves passing through the slit interfere destructively. Here, the waves are out of phase and cancel each other out, resulting in a reduced intensity of light.

Therefore, a central bright spot with one dimmer spot on each side constitutes one interference fringe. The bright spot at the center and the dimmer spots on the sides together form this interference fringe pattern.

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Answer:

the one that is clicked in the photo I think is right

Answer:

Fossil fuels take millions of years to replenish

Answer:

Fossil Fuel is limited it is like coal there is a limit and it won't last forever. This also contributes that it is not safe for the environment as well as the safety and health of people. This is similar to when there are many factories around an area there is going to be a high percentage of respiratory diseases such as asthma.

The fraction of the original unpolarized light transmitted through the second polarizer is approximately 0.416, rounded to three decimal places.

When unpolarized light passes through a polarizer, the intensity of the light is reduced to half, and the light becomes polarized along the axis of the polarizer. When this polarized light passes through another polarizer, the intensity of the light transmitted depends on the angle between the axes of the two polarizers.

The fraction of the original unpolarized light transmitted through the second polarizer can be calculated using Malus's law:

I = I₀ cos²θ

where I₀ is the intensity of the incident unpolarized light, θ is the angle between the axes of the two polarizers, and I is the intensity of the light transmitted through the second polarizer.

In this case, the angle between the axes of the two polarizers is 48°, so the fraction of the original unpolarized light transmitted through the second polarizer is:

I / I₀ = cos²48° ≈ 0.416

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a. Contact forces, friction, air resistance

Answer:

sorry but which class your talking 'bout

Answer:

Explanation:

Field characteristics

The strength of the field at the Earth's surface ranges from less than 30 microteslas (0.3 gauss) in an area including most of South America and South Africa to over 60 microteslas (0.6 gauss) around the magnetic poles in northern Canada and south of Australia, and in part of Siberia.

Things which will be attracted to (or repelled by) a magnet are

An iron pipe

A negatively charged piece of silver

An aluminum wire carrying current

According to the "rule of attraction of magnets," magnets will attract one another when their south poles are brought near together. According to the "rule of magnet repulsion," magnets repel one another when their respective north poles are brought close to one another.

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Answer:

the answer should be: An Electromagnet, An Iron Pipe, and An Aluminum Wire Carrying Current

Explanation:

took the test