QUESTION 9 When a spring is compressed or stretched, the elastic potential energy (U=1/2kx²) of the spring: Oa. Stays constant Ob. Decreases Oc Increases Od. Either positive or negative
Q: Find the force corresponding to the potential energy U(x) = -a/x + b/x?. 2b A F= b a B F = .2 3 F =…
A:
Q: 1. A car starts at rest, and ends up with 1500 J of KE. How much Work was done on it?
A: As per our guidelines, we are supposed to answer only first one question in case of multiple…
Q: -kx³. The work required to stretch the 0 to the stretched length x = l is Wo. In terms of A "stiff"…
A:
Q: In the figure shown, if the mass (m=6 Kg) is moving with constant speed and traveled a distance…
A: In the given question, we have to find the work done by the frictional force in moving a distance of…
Q: A 4.0 kg-block attached to a 20 N/m-spring constant spring moves on a frictionless horizontal…
A: Given data: Mass (m) = 4.0 kg Spring constant (k) = 20 N/m Amplitude (A) = 3 m Required: The…
Q: 1. A Roller Coaster showing in the picture bellow of mass of M = 149 Kg is moving through the 3…
A:
Q: The 2kg collar is released from rest at A and slides down the inclined fixed rod in the vertical…
A:
Q: A force of 6.0 N is used to accelerate a mass of 1.0 kg from rest for a distance of 12m. The force…
A:
Q: 4. An object is released from rest at X and slides to Y. The vertical distance between X and Y is 10…
A:
Q: The average power output of the human heart is 1.33 watts.(a) How much energy does the heart produce…
A: Power is Time is Note:Find:(a) Energy produces by human heart in one day.(b) Estimate the height a…
Q: 3) Is it possible for a system to have negative potential energy? A. Yes, as long as the kinetic…
A:
Q: 1. A particle moves in one dimension and is subject to a conservative force, whose potential energy…
A: For equilibrium points we have to calculate force from the potential energy and equate it with zero…
Q: A block is moving with 52.0 J of KE. A 12.0 N force pulls the block straight back, against the…
A: Given data: Initial Kinetic Energy (KEi) = 52.0 J Force (F) = 12.0 N, straight backward Displacement…
Q: A block is at rest. A 40.0 N force directed 38.0° above horizontal pulls the block 8.00 m across…
A: Given data: Initial velocity (v0) = 0 m/s Force (F) = 40.0 N Angle (θ) = 38.0° Displacement (d) =…
Q: 3. A force of 5.0 N is used to stretch a block attached to a spring from its resting position to a…
A:
Q: How far must you stretch a spring with k = 1700 N/m to store 210 J of energy?
A: Data Given , Potential energy of spring ( P.E ) = 210 Jk = 1700 N/mWe know that , Potential energy…
Q: tus: QUESTION 15 The figure shows an overhead view of three particles on which external forces act.…
A: In the given problem, there are three particles distributed among a common origin of the system. Of…
Q: You give a 5.0 kg box a quick shove up a ramp. It reaches a vertical height of 3.0 m before…
A: m = 5 kg h = 3 m vf = 0 m/s (Eth)f = 100 J g = 10 m/s2
Q: person pushes a box up an incline with constant force, and after calculating how much work they did…
A: Given work done by the person is greater than the work done by gravity. When we move a body on an…
Q: 2. A force acting on an object moving along the x axis is given by Fx=(14x- 3.0x) N where x is in m.…
A: Given- Fx = 14x - 3x2 N x moves from, x = -1 m to x = 2 m,
Q: Suppose you have an object attached to a bizarre spring, initially located at x = 0, the equilibrium…
A: Given: An object attached to a bizarre spring located at x = 0. Force of the object = F = Kx We need…
Q: 7. The work done by gravity in lowering a 3.0 [kg] box from an initial height to the ground is 15…
A: Given: The mass of the object is 3 kg. The work done by gravity is gravity is 15 J. The…
Step by step
Solved in 2 steps
- 10. Jared and Clay are climbing the stairs. Jared gets tired and stops halfway to the fourth floor. Clay makes it to the fourth floor v.. a problem. If Jared is twice as heavy as Clay, who has more potential energy? Explain.52. A spring that has spring constant k = 360 N/m is compressed by x = 9 cm. When the spring is released, all its energy is transferred to a 22 g marble ball.
- 33. A 60 kg boy does 60 push-ups in 40 s. With each push-up he must lift an average of 70 % of his mass a height of 40 cm off the floor. Calculate the following: a) the work the boy does for each push-up, assuming he does work only when he pushes up b) the total work done in 40 s c) the power for this period1. The restoring force from a non-ideal spring can be described by F-250N/m A-800N/m³. (Az)³, where Az is measured from equilibrium. How much work is done compressing this spring by 10 cm?