At NASA's Zero Gravity Research Facility in Cleveland, Ohio, experimental payloads fall freely from rest in an evacuated vertical shaft through a distance of 132 m. (a) If a particular payload has a mass of 15 kg, what is its potential energy relative to the bottom of the shaft?  J (b) How fast will the payload be traveling when it reaches the bottom of the shaft?  m/s Convert your answer to mph for a comparison to highway speeds.  mph

18. A cart is loaded with à brick and pulled at constant speed along an inclined plane to the height of a seat- top. If the mass of the loaded cart is 3.0 kg and the height of the seat top is 0.45 meters, then what is the potential energy of the loaded cart at the height of the seat-top? 19. A 75-kg refrigerator is located on the 70th floor of a skyscraper (300 meters above the ground) What is the potential energy of the refrigerator? 220. TTHE potential energy of a 40-kg cannon ball is 14000 J. How high was the cannon ball to have this mouth potential energy? Ce %23 8. 9. W d f g h b n m C

Q1 An object with a mass 100 kg decrease in kinetic energy of 500 ki and an increase in potential energy of 1500 kJ. The initial velocity and elevation of the object, each relative to the surface of the earth, are 40 m/s and 30 m, respectively. Determine (a) the final velocity, in m/s. (b) the final elevation, in m

assume the object has a mass of 0.55kg. calculate the gravitational potential energy and kinetic energy of the object. add the values to get the total energy. don't forget to label the units.  time (s) 0.05 height (m) 4.99 speed (M/s) 0.5

A ball has a total energy of 140 J when it is dropped from rest from a height of 20 meters. Assuming energy is conserved, when the ball is 5 meters above the floor: Q1: What is the total energy of the ball? Q2: What is the potential energy of the ball? Q3: What is the kinetic energy of the ball? Q4: If air friction cannot be ignored, how will the potential energy and the kinetic energy of the ball at 5 meters be affected?

1. A Roller Coaster showing in the picture bellow of mass of M=149 Kg is moving through the 3 hills until the end of the rid. if the first hill has Hight of H1=24 m, the second hill H2 = 17 m and the Third hill H3= 12 m. calculate the following: First hill M Scale 1.0 cm 3.0 m Second hill hill ⠀⠀ End of ride a) Potential energy at the maximum height (first hill) in (J) : b) The Kinetic Energy in the second hill :: c) the velocity of the car in the third hill :: d) The velocity of the car at the end of the rid (e) Kinetic energy at the end of the hall (J) :

The figure below shows a person lifting a box with a mass of 29.8 kg to a height of 1.8 m. Determine the potential energy gained by the the box in Joules.

A 0.500-kg particle has a speed of 1.30 m/s at point A and kinetic energy of 7.00 J at point B. What is its kinetic energy at A? What is its speed at B? What is the net work done on the particle by external forces as it moves from A to B?

Meteor Crater. About 50,000 years ago, a meteor crashed into the earth near present-day Flagstaff, Arizona. Measurements from 2005 estimate that this meteor had a mass of about kg (around 150,000 tons) and hit the ground at a speed of (a) How much kinetic energy did this meteor deliver to the ground? (b) How does this energy compare to the energy released by a 1.0-megaton nuclear bomb? (A megaton bomb releases the same amount of energy as a million tons of TNT, and 1.0 ton of TNT releases J of energy.

DETAILS PREVIOUS ANSWERS X J OSCOLPHYS2016ACC 7.3.P.016. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A hydroelectric power facility converts the gravitational potential energy of water behind a dam to electric energy. (For each answer, enter a number.) (a) What is the gravitational potential energy (in J) relative to the generators of a lake of volume 71.0 km³ (mass = 7.10 x 1013 kg), given that the lake has an average height of 35.0 m above the generators?