An object of mass m placed at a height h from the ground has a gravitational potential energy PE_1. If the mass of the object is doubled and the height is doubled, then the new gravitational potential energy PE_2 is equal(in terms of PE_1) to: 6PE_1 8PE_1 2PE_1 O PE_1 O4PE_1

If an object with a mass of 1.8 kg changes it speed from 3.15 m/s to 8.8 m/s, what is its change in kinetic energy? Assume that the answer has proper SI Units.

! An object of mass m placed at a height h from the ground has a gravitational potential energy PE_1. If the mass of the object is doubled and the height is unchanged, then the new gravitational potential energy PE_2 is equal(in terms of PE_1) to: O PE_1 O 2PE_1 6PE_1 8PE_1 O4PE_1 A ball moves on a frictionless track as shown below The

As shown in the figure below, two masses m, 5,50 kg and my which has a mass 60.0% that of my, are attached to a cord of negligible mass which passes over a frictionless puley also of negligible mass. If m, and m, start from rest, after they have each traveled a distance - 1.70 m, use energy content to determine the following. M₂ (a) speed v of the masses m/s (b) magnitude of the tension T in the cord

An object of mass m₁ is located at a height h₁ above the ground (that is considered as the reference for the gravitational potential energy, PE, = 0) and has a potential energy PE 1. If the mass is doubled (m₂ = 2m₂) and the height is reduced to h₂ = then the new potential energy PE92 will be equal to: h₁ PEg2= PEg1 PEg2= 2 PEg1 PEg2= 4 PEg1 O PEg2= 0.25 PEg1 O PEg2= 0.5 PEg1

Imagine a small moon with a mass equal to 1.3 times the mass of the Earth's moon.  How much work is done y this moon on a 1,331 kg meteor which comes from outer space and impacts the surface of the moon? You should assume that the radius of this moon is equal to the radius of Earth's moon. Where the radius of Earth's moon = 1,738 km.

A 0.45 kg ball is kicked up in the air. It falls back on the ground after attaining a height of 10 m.Calculate the energy values below. We assume no fiction.g= 9.80 m/s2EGP = gravitational potential energyEK=kinetic energy EGP at 0 m =EGP at 10 m =EK at 10 m =EK at 0 m =EK at 5 m =

Which of the following four objects has different kinetic energy than the three others? a) An object of mass 2m moving with speed 5v b) An object of mass 5m moving with speed 2v c) An object of mass 50m moving with speed v d) An object of mass (1/2)m moving with speed 10v

On Earth, an airplane (m = 2000 kg) flies 100 meters above the ground at a speed of 20 m/s.  How much gravitational potential energy does the airplane have?

The value ofthe gravitational field in a region is given by g = 2i + 3j. What is the change in gravitational potential energy of a particle of mass 5kg when it is taken from the origin O(0,0) to a point P(10, -5)? (Letters in bold are vectorial representations) a) 5 J b) 10 J c) 25 J d) 50 J