A 5.5 kg bird is flying 12 m above the ground. Potential energy of bird is calculated to be ?  use g =9.8m/s2. Do not round your answer and choose one correct answer with correct unit of measure of potential energy.   A. 64.68 J/s   B. 646.8 J/s    C. 646.8 Joules (J)   D. 64.68 J

Q: A cannonball with mass 20 kg is fired from a cannon sitting at the top of a 30-m tall hill. The…

A: Formula of initial kinetic energy is as follows: Ki=12mu2…

Q: A 75 kg runner has a speed of 5.45 m/s. What is the runner's kinetic energy?

A: Mass of the person is m=75 kg Speed of the person is v=5.45 m/s Note: 1 N=1 kg·m/s2 1 J=1 Nm 1…

Q: How much work do the breaks on a 3200 kg car need to do in order to slow it from 30 m/s to 20 m/s?

A: Given mass m=3200Kg V1=30m/s V2 = 20m/s According to work energy theorem work done by the car is…

Q: A 5 kg book is held 10 meters above the floor. How much gravitational potential energy does it have?…

A: Mass(m) = 5 kg Height(h) = 10 m Potential energy (E) = mgh g = gravitational acceleration g = 9.8…

Q: An accelerating object of mass m=2 kg is fired with an initial speed v=8 m/s at a starting point. If…

A: Given data: Mass m =2 kg Velocity v=8 m/s2. Final Kinetic energy =268 J

Q: How much work (in J) must be done to lift a stack of bricks, which has a mass of 50 kg, from the…

A: Given data The given mass is m=50 kg The height is h=8 m The accleration due to gravity is g=10 m/s2…

Q: 36.) When a 2.0 kg science textbook is sitting on a table that is 2.0 meters above the floor, how…

A: It is given that,

Q: 1. A 6.2kg box is moving at 2.4m/s to the left. a) What is its kinetic energy? 2.4m/s 6.2kg b) How…

A: Given data:  Mass (m) = 6.2 kg Initial velocity (u) = 2.4 m/s Work done by the friction (W) = -4 J…

Q: A 25 kg box is pushed up a ramp that makes a 15 degree angle with the horizontal.  The ramp is 15…

A: (a)Work done by ramp is zero when friction is negligible.      (b)Work done by gravity is:-…

Q: The kinetic energy of a 3.0 kg object moving at a speed of 9.3 m/s would be: a. 130 J b. 260 J…

A:

Q: work done by Jerome in climbing the staircase.

A: Given: Mass of the person is m=102 kg Vertical distance covered is h=2.29 m Time taken is t=1.32 s…

Q: A 2.00-kg (20.0-N) stone is dropped from a height of 5.0 m, and strikes the ground with a velocity…

A: Weight of stone (w) = 20 N Mass of stone (m) = 2 kg Initial height (h) = 5 m Velocity with which the…

Q: A 600 N hiker carries a 2.0 kg knapsack up a trail. After 30 minutes, the hiker is 300 m higher than…

A: We  know that when an object is on the height of h from the ground the  Gravitational potential…

Q: A 5.5 kg bird is flying 12 m above the ground. What is the Potential energy of the bird is…

A: Mass of bird (m) = 5.5 kg Height of bird above ground (h) = 12 m g = 9.8 ms2

Q: A 13 kg mass object initially has 2500 J of kinetic energy. -1200 J of net work is then done on the…

A: Given: The mass of the object is 13 kg. The initial kinetic energy of the object  is 2500 J. The net…

Q: A child lifts a 5 kg box up from the floor. The child then carries the box with constant speed of 1…

A: Given : m = 5 kg v = 1 m/s

Q: A ball of mass 100 g, is dropped from a height of 22 m and moving vertically down. Ignoring the air…

A: Solution: Given: m = mass of ball = 100 g = 0.100 kg g = gravitational acceleration = 9.81 m/s2 h1 =…

Q: What is the gravitational potential energy of a 50 N bird at a height of 50 meters?   A. 2500 J…

A: Given Data : The weight of the bird is given as W = 50N. The height of the bird is given as H = 50m.

Q: A 95 kg man runs up a 20 m high stairs at a constant speed. If it takes him 8 seconds to reach the…

A:

Q: What is the gravitational potential energy of a 300 N cat at a height of 6 meters?   A. 183 N   B.…

A: Option C Is the right answer  1800 J

Q: How much Gravitational Potential Energy does 5000 gallons (18,925 kg) of water have in a 50 meter…

A: Solution: Given that mass of water m = 18925 kg height from the earth surface = 50 m

Q: A certain truck has twice the mass of a car. They both move with the same speed. If the kinetic…

A:

Q: A 5.0-kg rock falls off of a 10 m cliff. If air resistance exerts a force of 10 N, what is the…

A: mass, m = 5 kg  height, h = 10 m resistive force, f = 10 N  initial velocity, u = 0 m/s

Q: 1-kg book is thrown from a height of 5 meters with a speed of 20 m/s. Compute the total energy when…

A:

Q: 29. In problem no.28, in a simple rectilinear * motion, a mass of 100 Kg is given an acceleration of…

A:

Q: A particle experiences a variable force F= (2+2x+ x^2)N that acts in the x direction. The work done…

A:

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.