What is the change in gravitational potential energy for a 70 kg man walking up stairs from a height of 64 m to 108 m? Answer: 30215 J

Q: For the 2465-lb car, determine (a) its mass in slugs, (b) its weight in newtons, and (c) its mass in…

A: To find: The mass in slugs, the weight in Newtons, and the mass in kilograms. Given: The weight of…

Q: The pendulum consists of a 9 kg plate and a 3 kg slender rod. The center of gravity of the plate P…

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Q: A light ball (weight 2.0-g) filled with a very light gas, the ball is connected to a spring as shown…

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Q: 30 20 kg 60

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Q: The effects due to automobiles and other .transportation vehicles because of Person Per Car, Time on…

A: Vehicle pollution :  This is the term related to the pollution of number of vehicles and…

Q: A student generates 0.76 W of power as she lift a book of mass g from a shelf 20 cm from the ground…

A: Given: The power generated by student, P = 0.76 W The initial height of the book, hi = 20 cm = 0.2 m…

Q: 1. Consider two identical small glass balls dropped into two identical containers, one filled with…

A: Given:Two identical small glass ballsRequired:To find which ball reaches the bottom of the container…

Q: How does the diameter of an air cylinder affect the force output of a cylinder?   If the diameter of…

A: Consider F as the force output, P as the air pressure applied, and A as the piston area or the area…

Q: Determine potential energy of a 10 kg mass suspended at a height of 25 meters. Provide your answer…

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Q: A stiff, square, thick rubber plate (m = 502 g) sits on the round mouth of a jar, completely…

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Q: The mass of air in a room 3 X 4 X 20 m is known to be 200 kg. Determine the specific volume: u=0.5…

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Q: A 400 kg spacecraft went to Venus where the acceleration of gravity is 5.25 m/s? What is the weight…

A: Given                         Mass, m = 400 kg   Acceleration of gravity =5.25 m/s2

Q: A ball of mass 0.40 kg hangs straight down on a string of length 15 cm. It is then swung upward,…

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Q: ley is a uniform disk (Idisk= the cord unwinds, the acceler

A: given:mass=1.1kgmass of pulley M=3kgR=20cm

Q: Determine potential energy of a 20 lb mass attached to an elongated spring. The spring has a…

A: Potential energy of the spring is given by the formula, U=12kx2

Q: A child with a weight of 230 N swings on a playground swing attached to 2.10 m long chains. What is…

A: To find:The Potential energy:a) When the chains are horizontal.b) When the chains make an angle of…

Q: A 400 kg spacecraft went to Venus where the acceleration of gravity is 5.25 m/s What is the weight…

A: Given Data m=400 kg gv=5.25 m/s2

Q: A 60g stone is raised to a height of 26m. the gravitational potential energy (in Joule) of the stone…

A: Mass of stone, m = 60 g = 0.060 kg Stone raise to height, h = 26 m

Q: The weight of a 10-kg mass at sea level is (a) 9.81 N (b) 32.2 kgf (c) 98.1 N (d) 10 N (e) 100 N

A: Given m=10kg

Q: How hard do you have to pull a 10 kg door with a perpendicular force at a doorknob located 90 cm…

A: For rotation about axis, we require torque that will cause the rotation. Mass-moment Inertia resists…

Q: 1-96 The average temperature of the atmosphere in the world is approximated as a function of…

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Q: The weight of one dozen apples is 2.9 lb. Determine the average mass of one apple in both SI and US…

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Q: A rigid body, located at re = 5.4Î – 1.2Ĵ (in) has a mass of m = 3.11lbm and a moment of inertia…

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Q: Determine the weight of a person whose mass is 100 kg in N and lbf. The local gravitational…

A: Here, Mass = m = 100 kg Gravitational acceleration = g = 9.793 m/s2

Q: water, while the other arm contains both f to-water height ratio of 4. Determine the heig n that…

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Q: When an object of 4 kg changes it’s velocity from 10 to 30 m/s, what is its kinetic energy change…

A: mass m=4kg initial velocity V1=10m/s final Velocity V2=30m/s To Find the kinetic energy change in KJ

Q: Which is a unit for power? (a) Btu (b) kWh (c) kcal (d) hph (e) kW

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Q: A circular plate of radius 2 ft is lowered into a liquid (w-1000 Ib/ft^3) so that its center is 4…

A: The total pressure does not converge to centre of gravity. However, it lies below centre of gravity.…

Q: 2-28E Determine the torque applied to the shaft of a car that transmits 450 hp and rotates at a rate…

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Q: A block of weight (250 N) placed on rough surface as shown in fig, determine the friction force…

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Q: A block sits on top of a 15 m high wall. The brick has a mass of 3.5 kg.  What is the potential…

A: Given data:-  height h= 15 m  Mass m = 3.5 kg Gravity g = 10 m/s2 Find :- Potential Energy?

Q: standing in an elevator that is accelerating upwards. The upwards normal force Rexerted by the…

A: Option c is correct.

Q: weight of a body  UW and the Potential energy from gravity Vg

A: Correct Option (C)

Q: Consider a TV set that consumes 120 W of electric power when it is on, and is kept on for an average…

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Q: Q2 Calculate the density of the air in a room whose Dimensions are (4 m, 5 m, 6 m) and have mass 140…

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Q: Determine the heat transfer to the air in kJ, ignoring friction

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Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.