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A 5kg steel ball is dropped onto a copper plate from a heightof 10m. If the ball leaves a dent 3.2mm deep, what is the average force exerted by the plate on the ball during impact?
A merry-go-round accelerates from rest to 0.71 in 21. calculate the net torque required to accelerate it
A bicycle whose tires have a diameter of .700 m accelerates from rest at a constant rate, Find the angular acceleration of the wheels
A 145-g ball was thrown into the air at an initial velocity of16 m/s. (Assume the ball started at ground level.) The ball reacheda maximum height of 13 m. What was the kinetic evergy when the ball reached maximumheight (before it started traveling do..
What mass (in grams) of steam at 100°C must be mixed with 124 g of ice at its melting point, in a thermally insulated container, to generate liquid water at 37.0°C.
A Federation star ship (2.0×10^6 kg) uses its tractor beam to pull a shuttlecraft (2.0×10^4 kg) aboard from a distance of 10.0 km away. The tractor beam exerts the constant force of 2.50 X 10^4N on the shuttlecraft. Both spacecraft are initially a..
A projectile is fired at 34.9° above the horizontal. Any effects due to air resistance are negligible. Calculate the horizontal component of the initial velocity
An object of mass 17.0 kg subjected to a non-zero net force moves with an acceleration of 2.6 m/s2. Determine the net force acting on it
A certain fluid has a density of 1040 kg/m3 and is observed to rise to a height of 2.4 cm in a 1.0-mm-diameter tube. Calculate the surface tension of the fluid
Hubble Space Telescope resolves sources
A piece of Nichrome wire passes a current of 0.813 A when a potential of 1.44 Volts is applied. What is the resistance of the wire
The biochemistry that takes place inside cells depends on various elements, such as sodium, potassium, and calcium, that are dissolved in water as ions. What is the resistance of the ion channel
A force vector has a magnitude of 569 newtons and points at an angle 41o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
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