A wire 4 m long and 0.2 mm in diameter is stretched by a force of 8 kg. Wt. If the wire elongates by 0.15 cm find the energy stored in the wire.
Q: .
A: Mass of the car, M=1000 Kg gravitational acceleration ,g= 9.8 m/s2 The radius of the highway, R=5.0…
Q: A force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much…
A:
Q: A spring with a force constant of 167 N/m is compressed 1.0 cm. The work done on the spring is ___.
A: Let us consider a force F applied on a spring system, such that F=-kx (negative sign indicates…
Q: A 5.0 kg book is held 1.0 m above the floor for 50 sec. The work done on the book is ?
A:
Q: A boat pulls a skier 237 m with a 335 N force directed 15o above the centerline of the boat. How…
A: Distance moved = 237 m Force = 335 N Angle = 15 degree
Q: You push a supermarket cart 17 m at constant speed on level ground, against a 20.7N frictional…
A:
Q: A force of 30.0 N is required to push a 20.0 Kg mass 2.00 m across the floor. The mass is then…
A: Data provided: Horizontal force (F) = 30.0 N m = 20.0 kg Horizontal displacement (d) = 2.00 m…
Q: A spring is stretched 0.1 m beyond its unstretched length by a force of 100 N. How much work must be…
A:
Q: A 5.0 kg mass is falling from a height of 10.0 m with a speed of 2.0 m/a what is it's totally…
A:
Q: An 83kg man eats a banana of energy content 1.00x10^3 kcal. If all of the energy from the banana is…
A: Given that,Mass : m= 83 (kg)Energy : E =1×103 (kcal)Velocity : v0 = 0 (m/sec)Here we need to find…
Q: The potential energy of a girder, after being lifted to the top of a building, is 5.17 × 10⁵ ft lb.…
A:
Q: A 12.0 kg bucket of water is lifted 8.00m from the bottom of a well to the top. How much potential…
A: Given, m=12.0 kg
Q: How much work is done on a 30.0 kg mass to change its speed from 3.00 m/s to 4.00 m/s over a…
A:
Q: A 65kg crate is located 260m above the ground. What is the potential energy of the crate in joules?
A: Given data: Mass (m) = 65 kg Height (h) = 260 m Required: Potential Energy (PE)
Q: How much work in J must be done by frictional forces in slowing a 4.82 kg car from 10.28 m/s to rest
A: According to the work energy theorem, Work done = change in kinetic energy
Q: An box with mass of 2kg is pulled from the bottom of a 30 deg ramp to the top, a distance of 3…
A: Here the mass of a box = m = 2kg the angle of ramp above the horizontal = θ= 30othe distance…
Q: ric power companies use water to store energy. umped from a low reservoir to a high reservoir. he…
A: Given information: Here, P is the power, h is the height and ρ is the water’s density.
Q: An elevator has a mass of 1300kg. What force in newtons must be applied to the elevator cable to…
A:
Q: a force of 30.0 N is required to push a 20.0kg mass 2.00 m across the floor. the mass is then lifted…
A: The work done by a force is given by, W=Fdcosθ Here, F is the magnitude of the force, d is the…
Q: A 83kg person climbs a 6.2m ladder in 14s. What is the power out put for this process
A:
Q: A textbook claims that walking at a speed of 1.39 m/s requires a power output Pwalk=280 W. The basal…
A:
Q: What is the potential energy of a 5kg box positioned 9.6m above the floor?
A: The expression for the potential energy is,
Q: Calculate the potential energy of a 430g book being help at 1.9m off the ground.
A: The expression for the potential energy is, PE=mgh here, m is the mass, h is height and g is the…
Step by step
Solved in 2 steps
- How much work can a 1950 Watt motor do in 15 min? Express your answer in Joules.A 15N force is applied to a spring with a spring constant 300N/m. How much work was required to stretch the spring?A 235 kg crate is sliding down a 66 degree inclined plane and moved a horizontal distance of 57.6 m. The work done by gravity is?
- What is the energy stored in a rubber band if it has a spring constant of 28 N/m and is stretched 0.25 m?If the cart weighs 6000N, what is the potential energy at point A?A 1168 kg car rolls a distance of 5.79 m downward along a slope that makes an angle of 30.0∘ with the horizontal. The work done by the force of gravity is
- An object of mass m and initial velocity vi is sliding along a frictionless plane. It then goes upan incline, which does have friction, that is raised up by an angle θ above the horizontal. Howmuch energy needs to be released to reduce the object to 1/3 of its original speed? Express youanswer in terms of m, vi, θ, and the distance d traveled along the ramp.An object of mass m and initial velocity vi is sliding along a frictionless plane. It then goes upan incline, which does have friction, that is raised up by an angle θ above the horizontal. Howmuch energy needs to be released to reduce the object to 1/4 of its original speed? Express youanswer in terms of m, vi, θ, and the distance d traveled along the ramp.If a 100 W electric motor has an efficiency of 68%, how long will it take to lift a 40kg object to a height of 8m?