Kinematics

It represent the distance covered is 40 metre.

To calculate the mass lifted, first calculate the work done using the formula Work = Power x Time. In this case, Work = 294 W x 10 s = 2940 J. Then, use the formula for work done against gravity, which is Work = Force x Distance. Substitute the values 2940 J for Work, 2 m for Distance, and 9.81 m/s^2 for acceleration due to gravity to find the Force (Weight). Finally, use the formula Weight = mass x gravity, where gravity is 9.81 m/s^2, to determine the mass lifted.

The gas molecules are in motion but if the total gas volume is stationary (Eg. closed in a container) the average gas velocity is zero.

And since the square of any number is never negative. And not all molecules have zero velocity at a time. Therefore, since not all numbers are zero and no number is negative the the average of numbers should be a positive number and will not be zero.

A perfect vaccuum is one in which there are no molecules of anything in it. That means no atmosphere, no nothing. But, that has nothing to do with the effects of gravity. Outer space is very close to being a perfect vaccuum but still experiences gravitational fields; if it didn't the Earth would be flung out in nothingness.

1000 kilometers per hour is equal to approximately 621.37 miles per hour.

Usain Bolt has the highest recorded footspeed at 27.44 miles per hour.

The initial energy of the sphere is given by its kinetic energy ( KE = \frac{1}{2}mv^2 ). The final energy of the sphere at its maximum height is the potential energy ( PE = mgh ), where ( g = 9.8 m/s^2 ) is the acceleration due to gravity. The energy lost due to friction is equal to the difference between the initial and final energies, i.e., ( KE - PE ). Calculate the values using the provided data to find the energy lost.

The flow rate of mass is a scalar quantity since it only has magnitude and no direction associated with it. It represents the amount of mass passing through a given area per unit time.

Firstly, momentum is not a form of energy; the question seems to imply so.

Kinetic energy is the energy possessed by a moving object. That energy is provided by a source, and can be removed from the object because energy possessed by an object is not an inherent part of that given object.

Momentum is a property of mass; momentum is inherent in the mass of the object, and cannot be removed or put somewhere else, only altered.

There is no law of conservation of kinetic energy. The law of conservation of energy says that energy cannot be created or destroyed, although it can be converted to different forms of energy. In inelastic collisions, kinetic energy is often transformed to heat energy, potential energy, and perhaps sound energy

The slope of a speed-time graph represents the acceleration of an object. A steeper positive slope indicates faster acceleration, while a negative slope indicates deceleration. A horizontal line indicates a constant speed with zero acceleration.

To make a KMX 125 go faster than 65 mph, you can consider modifying the engine by upgrading the carburetor, exhaust system, and air filter. Additionally, changing the sprockets for higher gearing and improving aerodynamics can help improve speed. It's important to ensure any modifications are legal and safe for road use.

You can determine the kinetic energy of the car by using the formula: KE = 0.5 * m * v^2, where m is the mass of the car (50 g), and v is the velocity of the car (calculated using the given distance of 10 m and the time taken to travel that distance). Make sure to convert the mass from grams to kilograms before plugging it into the formula.

Because squaring a velocity removes its sign. A velocity may be negative,

but it's square is always positive.

If two velocities are +5 and -5, their average is zero. But both squares are +25,

so the average square is +25.

In an elastic collision, all initial kinetic energy is fully restored as final kinetic energy. where nothing is converted into noise, heat or any other form of energy. In an inelastic collision, kinetic energy is "lost" to thermal or sound energy.

125 knots is equal to approximately 231 kilometers per hour.

The British government was worried that passengers traveling faster than 20 miles per hour on a locomotive would suffocate. This concern was due to the belief that high speeds would create a lack of oxygen inside the train cars, putting passengers' lives at risk.

Being in a 30 mph crash can generate significant force, equivalent to a person falling from a height of about 25 feet. This force can cause serious injuries, especially if safety measures, like wearing a seatbelt, are not in place. It's important to always drive safely and follow traffic laws to minimize the risk of accidents.

Kinetic energy is the energy of motion of particles, while latent heat is the energy absorbed or released during a phase change without a change in temperature. They are separate forms of energy and do not have a direct mathematical relationship, but both are measures of the internal energy of a system.

The potential energy of an object is given by the formula PE = mgh, where m is the mass (10 kg), g is the acceleration due to gravity (9.8 m/s^2), and h is the height (1.5 m). Plugging in the values, the potential energy required to lift the wood is PE = 10 kg * 9.8 m/s^2 * 1.5 m = 147 Joules.

The kinetic energy of the penny can be calculated using the formula: KE = 0.5 * m * v^2, where m is the mass and v is the velocity. First, calculate the velocity using the height dropped formula: v = sqrt(2 * g * h), where g is the acceleration due to gravity. Then, substitute the values to find the kinetic energy.

The conversion is 1mph = 1.609344 kph.

30 kph would then equal 18.6411 mph.

An object moves with constant velocity when there is no net force acting upon it. If there are no forces acting on an object, or if the forces acting on it "cancel out" leaving a net force of zero acting on the object, it will have zero acceleration. With a zero acceleration, the velocity of the object will be constant.

The slope of a time vs distance graph represents the speed or velocity of an object. It is calculated as the change in distance divided by the change in time. A steeper slope indicates a greater speed.