What is the gravitational potential energy of a ball with a weight of 69 N when it is sitting on a shelf 1.6 m above the floor? J What assumption do you need to make to get your answer

Q: a.An atwoods machine consists of two blocks, A (m=1.3 kg) and B (m=8.7kg). Block B is released from…

A:

Q: A can of beans that has mass M is launched by a spring-powered device from level ground. The can is…

A:

Q: A 7.80-g bullet moving at 690 m/s penetrates a tree trunk to a depth of 6.20 cm. (a) Use work and…

A: Mass of bullet (mb)=7.8 g Initial speed of the bullet (u)=690 m/s Penetration in trunk (d)=6.2 cm

Q: 1995M2. A particle of mass m moves in a conservative force field described by the potential energy…

A:

Q: A block slides up an inclined plane. Friction is present between the block and the plane. Which of…

A: Answer :) option(a) the total energy of the block earth system decreases because of the frictional…

Q: Use the work-energy theorem to find its maximum height. Express your answer with the appropriate…

A:

Q: Use Hooke's Law to determine the work done by the variable force in the spring problem. A force of…

A:

Q: A 74.8-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…

A:

Q: An object follows a closed path consisting of 3 segments, C1, C2, and C3, surrounding a surface S as…

A: This question can easily be called by applying the basic concepts of work done and line integration…

Q: The world's fastest humans can reach speeds of about 11 m/s. n order to increase his gravitational…

A: The world's fastest humans can reach speeds of about 11 m/s. So speed of humans , v=11 m/s Find: -…

Q: A particle moving along the x-axis is in a system with potential energy U = 11/x J, where x is in m.…

A: Given data The expression for the potential energy is given as U=11x J. The value of x is given as…

Q: One of the tallest towers is in Fargo, North Dakota. The tower is 629 m tall, or about 44 percent…

A: Potential energy= mass x gravitational acceleration x height P=mgh

Q: Suzie Lavtaski (m=60 kg) is skiing at Bluebird Mountain. She is moving at 15 m/s across the crest of…

A: The formula of kinetic energy is  K = 0.5 mv2  The formula of the potential energy is  U =  m g h…

Q: D As a sailboat sails 52 m due north, a breeze exerts a constant force F, on the boat's sails. This…

A: Given: The distance travel by boat when force F1 exert on boat is d1=52 m. The distance travel by…

Q: A 2-kg car accelerates uniformly from rest to a speed of 10 m/s in the first 5s (frictionless…

A: Given that:-Mass of car, m=2 kgAt, t=5 secvelocity, v=10 m/secBy using equation of motionv=u+at…

Q: A curious little girl held a 0.23-kg stone 1.2 m above the top edge of a water well and then dropped…

A:

Q: In the high jump, the kinetic energy of an athlete is transformed into gravitational potential…

A: According to the law of conservation of energy the total initial energy is equal to the total final…

Q: d)What is the potential energy at x = 4.0 m? Hint: Use the definition of potential energy and the…

A:

Q: As part of your daily workout, you lie on your back and push with your feet against a platform…

A: Given,The workdone to compress the springs, w = 85 JThe length compressed by the spring, ∆x = 0.2…

Q: a skater moving at 3.0 m/s encounters a rough patch that reduces her speed by 45% due to a friction…

A: Initial speed of the person is u=3 m/s Final speed on rough patch is v=45% of u Friction force is…

Q: Bruce pulls a spring with a spring constant k = 100 stretching it from its rest length of 0.20 m to…

A:

Q: A small block with mass 0.0400 kg is moving in the ay-plane. The net force on the block is described…

A: To find the magnitude of the acceleration of the block at the given point, we need to calculate the…

Q: As a sailboat sails 55 m due north, a breeze exerts a constant force F₁ on the boat's sails. This…

A: Given Data:- Magnitude of s1→=55 m Magnitude of s2→=44 m Magnitude of two forces are equal.…

Q: The (non-conservative) force propelling a 1.50 x 10³-kg car up a mountain road does 8.80 x 106 J of…

A:

Q: 0.8 0.6 0.4F 0.2- 0.25 0.50 0.75 1.00 Position, x (m) Force, F (N)

A: The area under a force-displacement graph for a varying force is given by the area under the graph…

Q: A basketball player makes a jump shot. The 0.700 kg ball is released at a height of 2.00 m above the…

A: mass=m=0.7 kg initial height= h=2 m final height=h'=3.1 m initial speed=v=7.8 m/s final speed=v'=3.4…

Q: A box is under the influence of two (and only two) forces. Julio is pulling the box to the left. A…

A:

Q: An ideal spring of negligible mass has a spring (force) constant of 1500 N/m. (a) How far must the…

A:

Q: A. A large speaker that you are planning to use, has a huge diaphragm connected to a spring, the…

A:

Q: In the movie Monty Python and the Holy Grail a cow is catapulted from the top of a castle wall over…

A:

Q: Hooke's law describes an ideal spring. Many real springs are better described by the restoring force…

A:

Q: lands on top of the tower, so that the gravitational potential associated with the bird is 2034 J.…

A:

Q: Hockey puck A has half the mass of hockey puck B. Starting from rest, both pucks are pulled the same…

A: Given: mB=2mATB=TA∆xA=∆xB

Q: A 55 kg box is raised a distance of 2.0 m above a storeroom floor. What is the change of potential…

A:

Q: A block of mass 2.28 kg starts sliding from rest down an incline plane for 25 cm. If the block has a…

A:

Q: A linear spring has a free length of 33 cm.  When it is under a  hanging load of 29802N, its total…

A: The given values are, l0=33 cm=0.33 mF=29802 Nl=1006.3 cm=10.063 ml'=1585.2 cm=15.852 m

Q: n 3 of 11 Mickey, a daredevil mouse of mass M, is attempting to become the world's first "mouse…

A:

Q: A 2.0-kg mass is projected vertically upward from ground level with an initial speed of 30 m/s. to a…

A: The mass is m = 2.0 kg. The initial speed of the mass is v1 = 30m/s. The final speed of the mass is…

Q: A parent pulls a child in a wagon at a constant speed, exerting a force of F = 55N at an angle of…

A: Given Data Applied force on the wagon is F=55 N Angle of the force with respect to the horizontal is…

Q: If a group of workers can apply a force of 1000 Newtons to move a crate 20 meters, what amount of…

A:

Q: A crate with mass m = 33.3 kg being pushed up an incline that makes an angle φ = 22.7 degrees with…

A: Free body diagram :

Q: A 7.80-g bullet moving at 600 m/s penetrates a tree trunk to a depth of 4.80 cm. (a) Use work and…

A:

Q: A farmer is using a rope and pulley to lift a bucket of water from the bottom of a well that is hy =…

A: Given:The depth of the well is 9.5 m. The force is 59.5 N. The total mass =mb+mw=3.1 kg

Q: a In the figure, a constant force Ễ of magnitude 85.0 N is applied to a 7.0 kg shoe box at angle =…

A: The objective of this question is to calculate the work done on the box by the force F when the box…

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.