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Q. A 1.40 kg object is held 1.30 m above a relaxed, massless vertical spring with a force constant of 310 N/m. The object is dropped onto the spring.
(a) How far does the object compress the spring?(b) Repeat part (a), but now assume that a constant air-resistance force of 0.800 N acts on the object during its motion(c) How far does the object compress the spring if the same experiment is performed on the moon, where g = 1.63 m/s2 and air resistance is neglected?
If the surface of the water is calm and the pool is h = 1.52 m deep, find out the minimum diameter of the raft that would prevent the diamond from being seen.
An 80 driver gets into an empty taptap to start the day's work. The springs compress 1.8×10-2. What is the effective spring constant of spring system in the taptap.
A flea jumps straight up to a maximum height of 0.470 m. What is its initial velocity v_0 as it leaves the ground.
A person weighs 689 N and the head is 53 N the average density of the person is 1010 kg/cubed meters how much force in N is required to keep a persons head out of the water.
A child exerts a tangential 47.6 {N} force on the rim of a disk-shaped merry-go-round with a radius of 2.10 {m}. If merry-go-round starts at rest and acquires the angular speed of 0.080 {rev/s} in 3 {s}, what is its mass.
A 10.60 weather rocket generates a thrust of 220. The rocket, pointing upward, is clamped to the top of the vertical spring. The bottom of the spring, whose spring constant is 450, is anchored to the ground.
Calculate the magnitude of the electric field at one corner of a square 1.43
The speed of light in a transparent medium (such as glass) is less than the speed of light in a vacuum. Is this a violation of the theory of relativity.
At what angle of incidence will green light (g = 560 nm) be most strongly reflected? Imagine the film has the minimum thickness that can produce these reflections.
How much work did the movers do (horizontally) pushing a 190-{rm kg} crate 11.2 m across a rough floor without acceleration, if effective coefficient of friction was 0.60.
An object of mass 555 grams sitting on a plane inclined at 35 degrees doesn't slide. Now the plane is lifted to the angle of 50 degrees and the object slides down plane knowing that the coefficient of kinetic friction is 0.44, find out the coefficien..
What is the lift (in newtons) by reason of Bernoulli's principle on a wing of area 77 m^2 if the air passes over the top and bottom surfaces at speeds of 270 m/s and 140 m/s, correspondingly.
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