Kinematics

40 kilometers per hour = 24.85 miles per hour.

No, corn could be said to have potential energy due to it's position or constituents.

130.5 mph

Kinetic energy is...

EK = 0.5 M V2

...where EK is energy in joules, M is mass in kg and V is velocity in m s-1. Plugging in the knowns, we get

108 = (0.5) (0.146) V2

Solving for V, we get

V = 38.5 m s-1

By mph, I assume you mean miles per hour, and not meters per hour.

We do know, 1 km = 0.6213 mile

Therefore,

420 km/h x (0.6213 mile/1km) = 260.9 miles per hour = 261 miles per hour (rounded off to 3s.f.)

55 knots is approximately equivalent to 101.9 kilometers per hour (kph).

320 kilometers per hour is approximately 199 miles per hour.

80 mph = 128.75 kph

1 knot (nautical mile per hour) = 1.15077945 mph

178 knots * 1.15077945 mph/knot ~= 204.8 mph

Yes, speed reading is a technique that involves reading quickly without sacrificing comprehension. It typically involves minimizing subvocalization (saying words in your head while reading) and utilizing techniques like chunking and skimming to increase reading speed. While some people may naturally read faster than others, speed reading can be learned and improved with practice.

Momentum before = momentum after.

Since there was no movement before, momentum before = 0

If you think of the bullet as forward/positive momentum and the gun as backward/negative momentum then the momentum of the bullet plus the momentum of the gun =0

and therefore the momentum of the bullet = the momentum if the gun.

momentum = mass x velocity P=m/v

20gx150m/s = 2000g (2kg) x velocity

3000 = 2000v

3000 / 2000 = v

v = 1.5m/s

240 mph = 386.2 kph

Yes, an object can have a constant speed but varying velocity if it changes direction while moving at that speed. Velocity includes both speed and direction, so if an object is moving in a straight line at a constant speed but changing direction, then its velocity is constantly changing even though its speed remains the same.

The formula for speed is speed = distance / time, where speed is measured in m/s or km/h. The formula for acceleration is acceleration = change in velocity / time taken, where acceleration is measured in m/s².

There are no miles in 75 kilometers per hour, it is a measure of speed and not distance. To convert 75 kilometers per hour to miles per hour, you can use the conversion factor: 1 kilometer is approximately 0.621 miles. So, 75 kilometers per hour is approximately 46.6 miles per hour.

Winds of 50 mph are considered strong and fall into the category of "strong wind" on the Beaufort scale. These winds can cause minor damage such as broken tree branches, loose objects being blown around, and difficulty walking or biking against the wind.

Rotational motion occurs when an object spins around an axis without changing its linear position. This type of motion is characterized by the object's circular movement around a fixed point. Examples include the spinning of a top or the rotation of a wheel on an axle.

The spring constant of a slinky can vary depending on factors such as the material it is made of, its design, and manufacturing process. Typically, the spring constant of a slinky is around 1-2 N/m.

90 kph = 55.9 mph

A stopwatch is more versatile as it can be used in a variety of situations, while a light gate is more specific and limited to measuring the time it takes for an object to pass through a light beam. The choice between the two depends on the specific requirements of your experiment or measurement.

average kinetic energy of molecules is roughly equivilant to temperature. as water reaches boiling point the temperature stops increasing. Instead the energy your putting in makes a phase change from liquid to gas.

Average kinetic energy can be classified as temperature because it is a measure of the average motion of particles in a substance. Heat, on the other hand, is a form of energy that is transferred between objects due to a temperature difference.

When potential energy and kinetic energy are combined it is called mechanical energy.

Mechanical energy is the energy that is possessed by an object due to its motion or due to its position. Mechanical energy can be either kinetic energy (energy of motion) or potential energy (stored energy of position).

1 kph = 0.621371192 mph

so

42 kph = 42 * 0.621371192 = 26.097590064 mph

A object falling form a height, h. At h it has graventational potential energy and when it starts to fall this energy tranferes into kenetic.
ability toput mass of any sort into a motion of accelleration therefore resulting in having potential of producing kenetic energy into said mass