Kinematics

Mass of a body and its speed are needed to calculate kinetic energy.

Kinetic energy of an object = mv2/2

This formula is useful only when object's speed is much less than speed of light.

This can happen if there is an external force acting on the object. Then the object is accelerating, and its kinetic energy is increasing. The extra energy comes from the external force. Example: Push a bowling ball on a long table. It keeps rolling faster, its kinetic energy increases, but its potential energy due to its height doesn't change, until it reaches the edge of the table and starts to fall.

A back-and-forth motion is often called oscillation or reciprocation. It describes a repeated movement in opposite directions.

Easy! MV^2/2= MC^2 V^2=2(C^2) V=sqrt[2(c^2)] You can figure out the rest...

UPDATE: Actually, the guy who did the above is incorrect. It's not that easy: clearly V cannot equal the square root of 2c^2, because that would mean that the velocity of the particle exceeds the speed of light...and as we all know, nothing can travel faster than the speed of light. I'm currently trying to work out the answer myself...but can't. :( A3 You have to use the definition of relativistic KE to get a reasonable answer. KE = total mass energy - rest mass energy. So when KE = restmass energy you get total mass energy = 2x restmass energy. The formulas are then; mc^2 = 2m0c^2 m = 2m0 m0/sqrt{1-(v/c)^2} = 2m0 1/{1 - (v/c)^2} = 4 v = .866c , so when the velocity is .866 the speed of light the relativistic kinetic energy will equal rest mass energy m0c^2 .

Both are forces, both are related to Newton, but no on the same rules, the normal force is a correspinding force to the gravitational field affecting the object, while the friction is the resistance of the surface.

Multiply mph by 0.45 to get meters per second. So, 55 x 0.45 = about 24.6 meters per second.

1 mph = 1.609344 km/h (According to Google Calculator)

Gasoline isn't changed into energy, because it is matter, and matter only changes form (it turns into carbon monoxide among other things). However, if what you are asking is, what kind of energy is produced when gasoline is burned in an engine, then you get kinetic energy (the heat builds pressure which causes kinetic energy when the rods are forced to move)

Kinetic energy is directly proportional to mass. This means that as the mass of an object increases, its kinetic energy will also increase, assuming the velocity remains constant. The equation for kinetic energy is KE = 1/2 * mass * velocity^2, showing the direct relationship between mass and kinetic energy.

I assume you mean 27km/h. This is 16.777mph

Acceleration, which is the change of velocity over the change in time, will equal zero when there is no change in velocity. This can occur when an object is stationary or when an object is traveling at a constant velocity.

You mean 45 kilometers per hour? That is 27.9617 miles per hour.

An object has a constant velocity when it is not being acted upon by a force (or an unbalanced force) (zero is still a velocity).

It is essentially impossible to have a pure constant velocity on earth because of gravity, friction, air resistance, and the rotation of the planet, the orbit of the planet around the sun, and the orbit of the sun around the Milky Way. However, in a single reference plane (the surface of the earth), one may be able to approach it as long as forces are balanced.

Even in space, there are forces of gravity and rotational momentum that must be considered.

That an object is losing speed. It is experiencing negative acceleration.

The flat line tells us that the object is moving at a constant velocity. It has zero acceleration.

The slope will tell you how much change of Y to X >.<
So the steeper it is the bigger change there will be ~

Wearing ankle weights can improve leg strength and endurance, but they can also alter your running mechanics and potentially increase the risk of injury. It is not recommended to wear ankle weights for speed training as they can negatively impact your running form and speed.

well it depends on the year really and how many miles and the transmission and timing belt and how well you have takin care of it all i know is i live in the Midwest and my 1997 Camry got up to 120 will 140,000 on it so its got some balls

when more pressure is applied to a basketball the ball bounces higher. your strength matters. if your strong, you throw the ball on the ground with all your might it will go very high. air inside the ball also matters. if 3/4 of the ball or less is full the ball will barely bounce. in fact there are chances it will not bounce at all no matter how strong you are.

you need to make sure that the ball is full of air if you want it to bounce

Increasing the pressure the temperature also increase and cooking is faster.

In a normal, uncovered pot, the temperature of the liquid will increase until it reaches the boiling point, and then stabilize at that temperature. The reason that a pressure cooker can improve on cooking times is that the boiling point is a function of the ambient pressure. An uncovered pot at sea level will boil at a higher temperature than the same uncovered pot in Mexico City or Denver or any other high altitude city. A pressure cooker allows the temperature to go higher because the pressure of the vapor above the liquid is contained so the boiling temperature can go higher and thus the food inside is subject to is higher temperatures. As far as kinematic energy is concerned - yes - that will be true. Higher temperatures mean higher average kinematic energy for the molecules and it tends towards being proportional to the Kelvin temperature as long as you are still well below the critical temperature and pressure of the fluid.

There is a Law of Conservation of Momentum, which states that total momentum is always conserved. In this case, that means that - assuming no additional bodies are involved - the total momentum before the collision will be the same as the total momentum after the collision. It doesn't even matter whether the collision is elastic or not.

If you throw a ball twice as fast, its kinetic energy will increase four times. Kinetic energy is proportional to the square of the velocity, so doubling the velocity will result in a four-fold increase in kinetic energy.