Kinematics

The center of mass of a semi-circular disc lies along the axis of symmetry of the disc, at a distance of 2R/π from the straight edge, where R is the radius of the disc. This can be derived using calculus and integrating the mass function over the semi-circle.

Kinetic energy is when it's moving. Potential energy is when the object is motionless.

88 kph = 54.7 mph

Work and kinetic energy are defined as scalar energy and have the same units joules.

dW=F.dr = (dP/dt) dr=dP(dr/dt) = dPv = vdP= mvdv

W = F.r = mv^2/2.

Physics has defined scalar energy but has no definition for vector energy mcV.

Torque which is T= Fxr should be recognized as vector energy but it is defined as "Torque". This is another example of Physics not appreciating that the Universe is made of Quaternions, a Scalar part and a Vector part. E= FR = -F.R + FxR where the scalar energy has been defined as work (F.R) and the vector energy is defined as Torque FxR.

Kinetic energy is a transformation of work in terms of mass and velocity versus force and distance. The vector energy is not called energy.

See link:

http://en.wikipedia.org/wiki/Torque

Kinetic energy is (1/2) x mass x velocity2.

Kinetic energy is (1/2) x mass x velocity2.

Kinetic energy is (1/2) x mass x velocity2.

Kinetic energy is (1/2) x mass x velocity2.

Heat engines convert chemical energy into thermal energy through combustion of fuel. The thermal energy causes a fluid (like water or air) to expand and create pressure, which is then used to drive a turbine or piston. The mechanical energy generated from the expansion of the fluid is then transformed into kinetic energy to produce motion or do work.

Two cyclists are traveling the same path. The first cyclist stops every 11 minutes to take a drink. The second cyclist stops every 15 minutes to take a drink. If the cyclists continue to stop at the same rate, after how many minutes will the cyclists be stopped at the same rate?

As the speed of an object increases, its kinetic energy and momentum also increase. Additionally, the drag force acting on the object due to air resistance will also increase with speed.

A Bugatti Veyron takes approximately 55 seconds to reach its top speed of 253 mph.

.4875 kilograms but make sure your units are right on your question because that seems very small

Kinetic Energy - EK (J) = 1/2mv2

Where m = mass (kg)
v = velocity (ms-1)

Therefore a 6.8 kg block travelling at 6 ms-1 has kinetic energy equal to:

(6.8/2) x 62

= 3.4 x 36

=122.4 Joules

Kinetic Energy was discovered and defined in the 19th century, particularly during the work of scientists like Joule and Clausius in the mid-1800s. The concept of kinetic energy as the energy of motion started to gain broader acceptance during this period.

Sharks can typically swim at speeds ranging from 1.5-5.5 km/h, depending on the species. Some faster species, like the shortfin mako shark, can reach speeds of up to 74 km/h in short bursts.

At the peak of the trajectory the potential energy will be at it's maximum and the vertical component (perpendicular to the earth) will be zero, ie if the ball was thrown straight up from the ground, it will start off with no potential energy and high kinetic energy. As it moves upward, the force of gravity will act on it and it will slow, thus the KE will decrease. At the same time it is gaining altitude, so the PE will increase. A the peak the KE is 0 and the PE is maximized and the ball is motionless. Then the ball will fall towards the earth and its KE will increase as it gains speed and its PE will decrease as it loses altitude until it hits the ground with the same amount of KE it started with, but moving in the opposite direction.

Any curved line will indicate a change in acceleration. Straight lines with slope indicate a steady velocity and straight lines with zero slope indicate a lack of motion.
If the X axis (left to right) is for time and the Y axis (up and down) is for speed, it would curve up.

Yes, pulling a wagon uphill requires exerting force against gravity, which increases the potential energy of the wagon as it gains height. This potential energy can then be converted back to kinetic energy as the wagon moves downhill.

what your talking about is terminal velocity, which is when the downward force of gravity (Fg)equals the upward force of drag (Fd). This causes the net force on the object to be zero, resulting in an acceleration of zero

Direction typically includes guidance, instructions, or advice on how to proceed towards a specific goal or destination. It can involve indicating a path, course of action, or providing orientation to help individuals navigate a certain situation or task effectively.

Multiply MPH by 1.609344 and it will give you KPH
45 * 1.609344 = 72.42048

for the most part multiplying by 1.6 is close enough

Mud slides are a fast type of mudflow that are ussually up to 50 mp/h. Now mudflows are ussualy less depending on what caused it. Some are only a few meters a day at top speed depending on how much of a slope and how long the slope is. They also depend on haw thick the mud is.

uh, down? (yes, down) The potential energy, as in a compressed spring, goes to zero as the spring is released. The potential energy (sort of) becomes the kinetic energy. (Now, I'm sure that that statement could get an argument in the physics study room in the science building, but it'll get you by...)

Acceleration is the change in velocity of an object over time. Take note that velocity is a vector quantity which means that it has magnitude and direction...

Thus...

An object undergoes acceleration when:

1. there is a change in the magnitude of the velocity (speed) of an object.

2. there is a change in direction of an object.

3. it changes both in direction and magnitude.

To convert 80 millimeters per second to miles per hour, you first convert millimeters to miles and seconds to hours. There are approximately 0.000000621371 miles in a millimeter and 3600 seconds in an hour. So, 80 millimeters per second is roughly 10.56 miles per hour.

The total kinetic energy of the particles in a sample is a measure of the sum of the individual kinetic energies of each particle in the sample. It depends on factors like temperature and the mass of the particles. The kinetic energy is directly proportional to the temperature of the sample.

Doubling mass affects kinetic energy in that the greater the mass, the greater the kinetic energy.

OK, but if you have a 10kg mass traveling at 2m/s and it bumps into and sticks to a 10g mass, the resultant speed would be 1m/s. The momentum stays the same. KE before is 10*2*2/2= 20, while the KE after is 20*1*1/2= 10. So it is not that the above answer is wrong, but rather, you question is not clear.