If an object weighing 12 N is released from rest at a height of 3 m above the ground.  a. How much potential energy has the object lost when it is at a height of 1 m from the ground? b. What is the amount of kinetic energy the object has gained at this point? c. What is the velocity of the object at this position?

Q: The Moon has instantaneously stopped its orbital motion and its rotation, and was at rest at…

A: (a)   The acceleration of the Moon at the moment its orbital motion stops can be determined as…

Q: 3. A potential energy function is shown below. a) A 250 gram mass is released from rest at x=3 m.…

A:

Q: -kx³. The work required to stretch the 0 to the stretched length x = l is Wo. In terms of A "stiff"…

A:

Q: 0.54 kg object travels from point A to point B. If the speed of the object at point A is 7.0 m/s and…

A:

Q: 14. A 0.3 Kg ball is initially at rest at the top left side of a frictionless incline plane: The…

A: We know that energy of system remains conserved. The gravitational potential energy at top is the…

Q: A 2.0 lb. rock and a 20.0 lb. rock are dropped from rest at 50.0 m above the ground. Ignoring air…

A: Mass of rock 1: m1 = 2.0 lb = 0.907 kg Mass of rock 2 : m2 = 20.0 lb = 9.07 kg Height of building: h…

Q: A 0.2 kg bullet is fired at a speed of 350 m/s. a.) How much kinetic energy does the bullet possess?…

A: Given: Mass of bullet, m=0.2 kg Speed of bullet, v=350 m/s   To determine: (a) kinetic energy  (b)…

Q: 18. Consider a particle of mass m is freely drawn from the"h "height. The three different positions…

A: Energy lost by P. E = Energy gain by K. E

Q: What is potential energy? Provide a simple explanation. b) An apple on a tree is hanging 3m from…

A:

Q: A mass is hanging on a vertical spring and is orginally in equilibrium with the weight balanced by…

A:

Q: the situation where a ball is fal l n rest and then falls to a height of 15 mete gy of 120J. When…

A: Given:-  The  height of the ball is h = 15 m  The total energy of the ball at the height h is E =…

Q: 7. Write a statement that describes the impact on kinetic energy of increasing the speed of an…

A:

Q: A 62 kg cheetah running reaches a maximum speed of 32 m / s. A. What is the maximum kinetic energy…

A: mass of cheetah(m)=62 kg speed(v)=32 m/s kinetic energy=12mv2kinetic energy=12×62×322kinetic…

Q: You and your friends are converting your 1985 Toyota Tercel (mass = 1500 kg) into a spaceship. a)…

A: Given:mass of the car, m = 1500 kglet the acceleration due to gravity on the surface is g = 9.81…

Q: You drop a ball of weight 5.00 N from rest from a certain height above the floor into free fall.…

A: The potential energy is a type of energy which depends upon the relative position of the body. The…

Q: An object is dropped from a height of 40 meters. Calculate: a.) its final velocity as it hits the…

A:

Q: what happens to the “lost” kinetic energy that is not converted to gravitational potential energy?…

A: Law:- energy neither be created nor be destroyed but can change from one form to another form

Q: The work required to accelerate an object on a frictionless surface from speed v to 2v is a. You…

A:

Q: 1. The Washington Monument is 555 feet tall. A. If 1 meter = 3.28 feet, what is the height of the…

A: The height of the Washington monument is 555 feet, and 1 meter=3.28 feet The nickel has a mass of…

Q: You drop a sphere of mass 14.0 grams from a height of 13.0 m above the ground into free fall. As the…

A: Mass of the sphere,

Q: Q4. The figure below shows a 500 gram block of wood falling from a certain height. KE: :0 - V, =0…

A:

Q: In problem no.28, in a simple rectilinear motion, a mass of 100 Kg is given an acceleration of 2.0…

A:

Q: Can work done by the following forces be expressed as potential energy? a. Weight b. Friction C.…

A: For a) weight and c) spring force,  we can expressed work done as potential energy. For b) Friction…

Q: 2. You throw a 3 kg ball upwards: it goes up, turns around, and falls back down. At some point…

A:

Q: 3. A baseball with a mass of 0.65 kg was pitch into the air at a height of 25 meter above the ground…

A:

Q: The expression Ugrav = mgh is an approximation is that is only valid near the Earth's surface. The…

A:

Q: A spring with spring constant k is attached to the floor, standing vertically. You place a box of…

A: The mass of the box is m.The spring constant is k.The acceleration due to gravity is g

Q: Which of the following is NOT an example of potential energy? a. A running woman b. An incredibly…

A: Required : Which is not an example of potential energy.

Q: An object with a mass 100 kg decrease in kinetic energy of 500 kJ and an increase in potential…

A: Given Data: The mass of an object is, m=100 kg The decrease in kinetic energy is, ∆K·E=-500 kJ The…

Q: 1. A spring (k=100 N/m) is hanging from the ceiling when somebody attaches a 2 kg block to the end…

A:

Q: A huge cruiser with a mass of 6.50x107 kg has a velocity of 12 m/s in a instant. A. What is the…

A:

Q: A 12 Kg bowling ball is held 3 meters above the ground at sea level. Assuming that acceleration of…

A: GivenMass of ball, m=12 kgHeight above the ground, h=3 mAcceleration due to gravity, g=10 m/s2

Q: A track has three hills. A-18m, B=10m, C=5m. Mass of the ball=2kg. The ball descends down the first…

A:

Q: A set of stadium stairs consist of 90, 20 cm high steps. A 70 kg runner is training by traversing up…

A: As per bartleby guideline for more than one subparts asked only first three are to be answered…

Q: 2. A 2.0 lb. rock and a 20.0 lb. rock are dropped from rest at 50.0 m above the ground. Ignoring air…

A: Given, mass of rock  m1 = 2 lb mass of rock m2 = 20 lb We know the expressin for force is  F=ma…

Q: Identify each situation as: WORK IS DONE or WORK IS NOT DONE           a.A teacher applies force to…

A: Whether the work is done on the object or not depends on the force applied and displacement of the…

Q: 1. Which of the following is NOT an example of potential energy? a. A running woman b. An incredibly…

A:

Q: a. According to the graph, what is the gravitational potential energy of the object when it is…

A: From the graph Gravitational potential energy of the object at the height of 3 meters= 60 Joule

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.