A 0.40kg block initially at rest on frictionless horizontal surface is acted upon by a force of 3.0 N for a distance of 5.0 m. How much kinetic energy does the block gain in Joules?

Q: In the figure, a 2.1 kg box of running shoes slides on a horizontal frictionless table and collides…

A: Given:- weight of shoes = 2.1kg weight of ballet slipers = 1.6kg h= 0.63m speed of shoes = 3 m/s

Q: A 55 g particle is moving to the left at 22 m/s . How much net work must be done on the particle to…

A: According to the work-energy theorem, the work done will be equal to the change in kinetic energy of…

Q: A 4.23 kg bundle starts up a 22.4° incline with 103 J of kinetic energy. How far will it slide up…

A: The expression from work energy theorem,

Q: A 15 × 10² g ball is thrown straight up in the air with an initial upward velocity of 25 m s-'.…

A: Given  Mass of ball m=1500g=1.5kg Initial speeed v=25m/s

Q: A 0.30-kg block initially at rest on a frictionless horizontal surface is acted upon by a force of…

A:

Q: 9 A box moves on a frictionless horizontal surface under the influence of the two forces = F₁ = (50î…

A: Power = It is the dot product of force vector to the velocity vector.

Q: An accelerating object of mass m=20 kg is fired with an initial speed v;=10 m/s at a starting point.…

A:

Q: a .40 kg block initially at rest on a frictionless horizontal surface is acted upon by force of 5.0…

A:

Q: For a block of mass m to slide without friction up the rise of height h shown, it must have a…

A: Step 1It is given that m is the mass of the block and it has to rise up at a height h without…

Q: 70 kg block at rest on a frictionless,horizontal surface is acted upon by a force of 5.0 n for a…

A: SOlution: Given that  m = 0.7 kg F = 5 N d = 3 m KE = 5 J

Q: 8) An apple of mass m is thrown horizontally from the edge of a cliff of height H, as shown to the…

A: Mass of apple = m Initial height of apple = H Final height of apple = 0  Initial speed of apple = vo

Q: How do I calculate energy used in my compression spring ping pong ball launcher? Please show an…

A: Energy used in the compression of spring ping ball launcher stored in form of the potential energy…

Q: 3. 0.20-kg rocket in a fireworks display is launched from rest and follows an erratic flight path to…

A:

Q: . For a block of mass m to slide without friction up the rise of height h shown, it must have a…

A: To reach just top, the K.E. of the block must be equal to the potential energy at the top.

Q: A 4.0 kg bundle starts up a 30 incline with 128 J of kinetic energy. How far will it slide up the…

A: From conservation of energy,

Q: a block of ice slides down a frictionless ramp at angle 50 while an ice worker pulls on the block…

A: Given, angle=50   force = 50 N, acting in the opposite direction of the motion In the direction of…

Q: A 0.90-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of…

A: From the expression for work-energy theorem W=Fdcosθ Here, θ is the angle between the direction of…

Q: If 30,000 J of work is done on a 2400 kg box that started from rest, what is the final velocity of…

A:

Q: A 1700 kg car starts up a 130 m long hill at a speed of 20.0 m/s. If the propulsive force (up the…

A: Work done by gravity  Wg = -mgh = -1700×9.81×48.1 = -802163.7 J Work done by propulsive force  WP =…

Q: A 0.90-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of…

A:

Q: Consider a 0.05 kg stick of dynamite that is launched vertically upward. At its apex, the dynamite…

A:

Q: A 0.80-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of…

A:

Q: While training for a dog show, a 3.8 kg dog does 32 pushups in a minute, displacing its center of…

A:

Q: In what direction relative to the direction of travel can a force act on a car (traveling on level…

A: The kinetic energy of any object with a mass m moving with a velocity v is given by KE=12mv2 Any net…

Q: A net force F = 6t² along the x-direction acts on an object of mass m = seconds and F is in…

A: Given expression -  F=6t2 .....(1) Force can be express as -  F=ma .....(2) Equating equation (1)…

Q: What must be the minimum initial kinetic energy of the block of mass m in order for it to slide…

A:

Q: A 0.90-kg block initially at rest on a frictionless horizontal surface is acted upon by a force of…

A:

Q: 5) A particle of mass 200g is thrown vertically upwards with a speed of 10ms-1, the work done by…

A:

Q: a 3.2 kg box of running shoes slides on a horizontal frictionless table and collides with a 2.0 kg…

A:

Q: A 0.75 kg rocket in a fireworks display is launched from rest and follows an erratic flight path to…

A:

Q: 8. A 30.00-kg child initially at rest slides down a playground slide from a height of 2.80 m above…

A: Given that, Mass of the child (m)= 30 kg Initial speed (u)= 0 Height of the slide from the ground…

Q: On a frozen pond, a 8.54-kg sled is given a kick that imparts to it an initial speed of…

A:

Q: A 5.00 kg block moving with a velocity of 2.00 m/s on a flat horizontal surface enters a region…

A:

Q: A 4.0 kg box slides on a horizontal frictionless table and collides with a 1.6 kg box initially at…

A:

Q: In the figure here, a block of ice slides down a frictionless ramp at angle 0=56.0 ° while an ice…

A: Given data: Angle, θ=56.00 Magnitude of force, F=58.0 N Distance along the ramp, d=0.410 m Increase…

Q: A 4.0 kg bundle starts up a 30° incline with 128 J of kinetic energy. How far will it slide up the…

A: Given: The mass of the bundle: m = 4.0 kg. The angle of incline: θ = 30o. The initial kinetic…

Q: A fighter jet is launched from an aircraft carrier with the aid of its own engines and a…

A:

Q: Describe the energy transformations that take place when askier starts skiing down a hill, but after…

A: When the skier begins from elevated position, it posses large quantity of potential energy. If he…

Q: A 5.75-kg object passes through the origin attime t = 0 such that its x component of velocity is…

A: Given that x component of velocity and y component of velocity. Then We have to determine the…

Q: In the figure, a 4.6 kg box of running shoes slides on a horizontal frictionless table and collides…

A: Given:  The mass of the running shoe box is m1 =4.6 kg. The mass of the ballet slippers is m2 = 3 kg…

Q: In Fig. a 3.2 kg box of running shoes slides on a horizontal frictionless table and collides with a…

A: Free body diagram of the system is as given bellow: Use the following equations: Linear momentum is…

Q: Releasing some frustration at the end of the semester, you throw your physics book (mass of 4.3 kg)…

A: The kinetic energy of the book just after the person let is go is given by, KEi=12mvi2 Here, m is…

Q: 14. In the figure, a constant external force P = 130 N is applied to a 20-kg box, which is on a…

A: Given:  External force, P=130 N Block's mass, m=20 kg Displacement, d=8.0 m Time interval, t=7 s

Q: A block with an initial kinetic energy of 4.0 J comes to rest after sliding 1.0 m. How far would the…

A: Given - If the initial kinetic energy of block was K1,i = 4.0 J , then the distance travelled by the…

Q: What is the kinetic energy of a 146.7 g baseball thrown at 49.8 m/s at a height of 114 m? Use g=9.8

A: Mass = m = 146.7 g = 146.7 × 10-3 kg Initial speed =v0 = 49.8 m/s Height = h = 114 m K.E. at h =?

Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.