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1. A ball of mass 2.4 kg hangs at the end of a string 1.4 m in length from the ceiling of a room. The height of the room is 3.3 m. What is the gravitational potential energy of the ball relative to the ceiling?
2. What is the gravitational potential energy of the ball relative to the floor?
3. What is the gravitational potential energy (in J) of the ball relative to a point at the same elevation as the ball?
Determine an average acceleration in coordinates with x-axis
The 54-MW wood-fired McNeil Generating Station in Burlington, Vermont, produces steam at 950 ?Fto drive its turbines, Find McNeil's maximum thermodynamic efficiency
A solid wheel (solid cylinder) with mass 2.5 kg and a radius of 0.50 meter starts rotating from rest and has a constant angular acceleration of 2.5 radians/second^2 Determine the torque required to produce this motion
neglect the initial speed of the roller coaster. A neautral water molecule in its vapor state has an electric dipole moment of magnitude 6.2x10^-30 C.m. How far apart are molecule's center of positive and negative charge.
A block (m+12 kg) is moving at a speed of 7.0 m/s on a level surface. A force of 25 N is applied in the direction that is moving but it comes to a stop in a distance 625 cm
A water pipe having a 2.60 cm inside diameter carries water into the basement of a house at a speed of 0.827 m/s, find water pressure (in kPa) at the second floor
A 1.0-kg block of ice is initially at 0°C. Heat is added to this system, and the entropy is increased by 357.1 J/K. How much of the ice melts
The car's motion can be divided into three different stages: its motion before the driver realizes he's late, its motion after the driver hits the gas (but before he sees the police car), and its motion after the driver sees the police car. Which of ..
What is the intensity level in decibels for a sound with an intensity of 2.35×10-4 W/m2, What is the intensity for a sound with an intensity level of 79.9 dB
What was the bullet's speed as it left the barrel. A 1kg block rests against one end of a horizontal spring which is compressed by 10 $cm$.
A diving board length = 5.60 that weighs 210 is supported by two pillars. One pillar is at the left end of the diving board; other is distance = 1.60 away. Find out the magnitude of force exerted by the left pillar while an 85.0 diver stands at th..
Estimate the acceleration of cyclist, and roller coaster.
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