Kinematics

45 miles is 72.4 kilometres. 45 miph is 72.4 kmh-1.

The kinetic energy of an object is calculated using the formula KE = 0.5 * m * v^2, where m is the mass in kg and v is the velocity in meters per second. Plugging in the values given (m = 70 kg and v = 6 m/s), we find KE = 0.5 * 70 * 6^2 = 1260 J. So, her kinetic energy would be 1260 Joules.

Majungasaurus was estimated to have been able to run at speeds of around 20-25 km/h (12-15 mph). It was a large theropod dinosaur, so it would have been fairly quick for its size.

A 5 minute 45 second mile equates to a pace of 10.4347 mph

3200 kilometers per hour is approximately 1988 miles per hour.

305 km/h = 189.518214 mph

The frequency of a wave is given by the formula: frequency = speed / wavelength. In this case, the wavelength is 15 meters and the speed is 250 meters per second. Therefore, the frequency of the 15 meter wave traveling at 250 meters per second would be 250 / 15 = 16.67 Hz.

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.