Given that, change in kinetic energy ∆K = 42 j
From work energy theorem , change in kinetic energy = work done
Gene required work done = ∆K = 42J
Question 10 1 pts How much work (in Joules) is required to change the kinetic energy...
How much kinetic energy will an electron gain (in joules) if it accelerates through a potential difference of 1.75×104 V ?
How much kinetic energy (in Joules) does the electron have to have in order for the system not to be a bound one? Please enter all values in scientific notation format where "e" represents "times 10 to the power of." For example, 3e-3 means 3 x 10-3 Answer:
In travelling a distance of 0.5m, an object gained 200 Joules of kinetic energy. What work was done on the object, assuming no frictional forces acted? What was the average forces acting on the object? If a force of 600N had acted over the same distance, what would have been the gain in kinetic energy?
6. (10 pts) What is the kinetic energy in joules) of a 4000 lb car moving at 60 mph? S hox 30m across a level floor
4. Kinetic energy is the energy of motion. How much kinetic energy does a spherical asteroid with a 1 km diameter have if it is made out of iron (has density of about 8 kg m-3) and hits Earth at a relative velocity of 10 km s-1? Convert your answer to megatons of TNT (1 megaton of TNT = 4.18 x 1015 joules).
(3) (10 pts): The work-energy theorem relates the change in kinetic energy of a particle to the work done on it by an external force: AK = W = | Fdx. a) Writing Newton's second law as F=dp/dt, show that W = S v dp and integrate by parts using the relativistic momentum to obtain E = mc²y b) Use the expression for the relativistic energy and relativistic momentum of a particle of mass m to demonstrate the important relation...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who is riding in a car traveling 40 km per hour? Express your answer in Joules, but don't type the unit in the answer box. Round to the nearest whole number. (Careful with the units) 1 pts Astudent slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. If the coefficient of kinetic friction between the...
98 joules Question 2 1 pts An object is falling freely due to gravity. If no other force other than gravity is acting on the object then the total mechanical energy (kinetic energy + potential energy) is O increasing. O decreasing O constant
that is the whole question. How much energy is required to raise the temperature of 10.3 grams of solid iron from 24.3 °C to 35.1 °C? Answer Joules. What is the energy change when the temperature of 13.9 grams of solid titanium is decreased from 39.1 °C to 20.7°C? Joules. Aniseroules