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A 625 gram block is dropped onto a vertical spring with spring constant k =160.0 N/m. The block becomes attached to the spring, and the spring compresses 81.7 centimeter before momentarily stopping.
While the spring is being compressed, find what work is done on the block by its weight?
While the spring is being compressed, find what work is done on the block by the spring force?
Find the speed of the block just before it hits the spring? (Suppose that friction is negligible.)
If the speed at impact is doubled, calculate the maximum compression of the spring?
A swimming pool is 50 m long by 23 m wide and is less deep at one end than at the other. The depth at the shallow end is 1.18 m, and the depth at the deep end is 3.95 m. The slope is continuous (smooth) from one end to the other. What is the differen..
In San Francisco a very simple technique is used to turn around a cable car when it reaches the end of its route. The car rolls onto a turntable, what is the magnitude of the net torque applied to the car
q1. a plane is flying horizontally with speed 198 ms at a height 6640 m above the ground when a package is dropped from
How much work does a steam crane need to do in order to lift a 108,500 kg locomotive back onto the track if the locomotive has been derailed into a ditch 3.25 meters below the level of the tracks
A plane is flying in the horizontal plane. At time t1 = 0 s with the components of its velocity are vx= 100 m/s and vy = 120 m/s. At time t2= 20 s the components are vx = 80 m/s and vy = 142 m/s.
A jet with mass m = 1.3 × 105 kg jet accelerates down the runway for takeoff at 2.4 m/s2, What is the net horizontal force on the airplane
For exercise, a 60 kg athlete runs up a 10-m high hill in 30 seconds. Assume the efficiency of the human body is 25%. Determine her metabolic power
Gap among electrodes in a spark plug is 0.06 cm. In order to produce an electric spark in a gasoline air mixture, the electric field should reach a value of 3 x 10 to the 6th power V/M. What minimum voltage should be supplied by the ignition circuit ..
A cylindrical copper cable carries a current of 1330 A. There is a potential dissimilarity of1.60 10-2 V among two points on the cable that are0.26 m apart. What is the radius of the cable?
An air conditioner is used to keep the interior of a house at a temperature of 20 C while the outside temperature is 35 C. If heat leaks into the house at the rate of 12 kW, and the air conditioner has the efficiency of a Carnot engine, what is the m..
A certain nuclear power plant has an electrical power output of 430 MW. The rate at which energy must be supplied to the plant is 1,510 MW. What is the thermal efficiency of the power plant
A gas of diatomic molecules is in equilibrium at a temperature of 340 K. What is the mean angular momentum of the molecules
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