momentum = mass x velocity => mass = momentum / velocity
You cannot. Force is mass times acceleration. You have neither.
You can't, because you don't have enough information. In order to find velocity, you need to be able to find the speed and the direction of motion. You have the speed, but you have no information that you can use to determine the direction in which the object is moving. Mass doesn't help.
First Find the Force Acting on Body take a = 9.8m/s F=ma Second Work Done = Force x Displacement Answer will be in Joules
Power is equal to Force times velocity; P=Fv. You are given the 'speed', which I assume to be velocity. You also have acceleration. In order to find F, you need first to find the mass, which you can calculate from the weight, Fg, by dividing by the acceleration due to gravity, 9.8. You then have the mass. From here, multiply mass times acceleration times the velocity.
To convert kilograms to joules, you need to use Einstein's famous equation E=mc^2, where E is the energy in joules, m is the mass in kilograms, and c is the speed of light (approximately 3 x 10^8 m/s). Simply multiply the mass in kilograms by the speed of light squared to find the energy in joules.
You can find the speed by dividing the momentum by the mass. The formula to calculate speed is speed = momentum / mass. Just plug in the values for momentum and mass, and you will get the speed.
momentum = mass x velocity => mass = momentum / velocity
To calculate mass when given joules and velocity, you can use the formula for kinetic energy: KE = 0.5 * m * v^2, where KE is the energy in joules, m is the mass, and v is the velocity. Rearrange the formula to solve for mass: m = 2 * KE / v^2. Plug in the values for energy and velocity to find the mass.
Energy (in Joules) equals the mass (in Kgs) multiplied by the square of speed of light (in meters per second)
You can use the formula q = mcΔT, where q is the heat energy transferred, m is the mass of the substance, c is the specific heat capacity, and ΔT is the temperature change. Rearrange the formula to solve for mass (m) by dividing both sides by cΔT. Given the specific heat capacity of the solute, you can calculate the mass of the substance dissolved in the solution by plugging in the given values for temperature and heat energy.
The kinetic energy of a moving object is given by the formula 1/2 * mass * speed^2. Plugging in the values for the mass (1 kg) and speed (20 m/s), the kinetic energy would be 200 J.
You cannot. Force is mass times acceleration. You have neither.
You can't, because you don't have enough information. In order to find velocity, you need to be able to find the speed and the direction of motion. You have the speed, but you have no information that you can use to determine the direction in which the object is moving. Mass doesn't help.
The kinetic energy of a molecule is given by the formula KE = 0.5 * m * v^2, where m is the mass of the molecule and v is its velocity. For an N2 molecule moving at a certain speed, you would need to know the speed and the mass of the molecule to calculate the kinetic energy in joules.
78.4 joules at 2.8m/s
First Find the Force Acting on Body take a = 9.8m/s F=ma Second Work Done = Force x Displacement Answer will be in Joules