The gravitational potential energy gained by a box having a mass of 2 kg that is lfted to a height of 4 m is 8 joules. asking if it is true or false
The gravitational potential energy gained by a box having a mass of 2 kg that is...
4. A mass of 2 kg is held 4 meters above the ground. The gravitational potential energy of this object, relative to the ground, is ___. 5. Which is easier, stopping a 1000 kg car traveling at 40 m / s or a 2000 kg car traveling at 20 m / s? 8. Suppose an airplane fires bullets in the same direction it travels. Does the momentum of the plane increase, decrease or remain the same? Explain
What is the change in gravitational potential energy of a 67.0 kg student as they climb from ground level to a height of 10.7 meters. Use g= 9.81 m/s2
Draw a new gravitational potential energy vs. height graph to represent the gravitational potential energy if the ball had a mass of 2.00kg. The graph for a 1.00kg ball with an arbitrary initial velocity is provided again as a reference.Take g = 10.0 m/s2 as the acceleration due to gravity.
Only A and B please :)
The equation mgy for gravitational potential energy is valid only for objects near the surface of a planet. Consider two very large objects of mass m_1 and m_2, such as stars or planets, whose centers are separated by the large distance r. These two large objects exert gravitational forces on each other. The gravitational potential energy is U = -Gm_1 m_2/r where G = 6.67 times 10^-11 Nm^2/kg^2 is the gravitational constant. (a) Sketch...
The gravitational potential energy of a small satellite with mass m orbiting the Earth, mass M, is U(r) = −(GMm)/r, where r is the radial distance from the center of Earth to the satellite. Derive the gravitational force F(r) acting on the satellite by evaluating the gradient of the potential energy.
The figure is a graph of the gravitational potential energy and
kinetic energy of a 70 g yo-yo as it moves up and down on its
string. The acceleration of gravity is 9.81 m/s2 .
a) By what amount does the mechanical energy of the yo-yo change
after 6.0 s? Answer in units of J.
b) What is the speed of the yo-yo after 4.5 s? Answer in units of
m/s.
c) What is the maximum height of the yo-yo?...
A hydroelectric power facility converts the gravitational potential energy of water behind a dam to electric energy. What is the gravitational potential energy relative to the generators of a lake of volume 35 km3km3, (3.50×10133.50×1013 kg) given that the lake has an average height of 63 m above the generators? ΔPEg=_______________ units=________________
A student of mass 47.3 kg climbs up the stairs in the Physics Department, with a vertical height change 3.2 metres. What is the change in gravitational potential energy? Give your answer in Joules, to 2 significant figures
What is the gravitational potential energy of a 1000 kg car on top of a 45 m cliff? Please show all steps
Do not assume a constant g for this problem. The gravitational potential energy of a 1 kg object on the earth's surface is -6.28e7 J. How much work is required to lift that object to a height of 5e6 m? GM = 4e14m^3/s^2. Radius of earth = 6.4e6 m.