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An aluminum rod is 37cm long at 35.1 degree celcius and has a mass of 522g. If 20400 J of energy is added to the rod by heat, what is the change in length of the rod? Assume the specific heat of aluminum is 900 J/kg degree celcius. Answer in unites of degree Celcius.
A 2.0 kg mass starts from rest and slides down an inclined plane 0.80 m long in 0.50 s. What net force is acting on the mass along the incline?
A charge of -3.00 mC is fixed inplace. From a horizontal distance of 0.045 m, a particle ofmass 7.2 x 10-3kg, How far does the particle travel before its speed is zero
Light is shining perpendicularly on the surface of the earth with an intensity of 131 W/m2. determine the number of photons per second per square meter that reach the earth
q1. a highway curve with a radius of 555 m is banked properly for the car travelling 150 kmh. if a 1650 kg porshe 928 s
q. a small block with a mass of 0.170 kg is attached to a cord passing through the hole in a frictionless horizontal
If air resistance & other effects are ignored how far away did the shell hit.
A bedroom bureau with a mass of 57 kg, including drawers and clothing, rests on the horizontal floor. What is the static friction force on the bureau initially
A 80kg football player is moving at 5.7m/s to the east; a 140kg player is moving at 5.4m/s to the west. While they are still in the air, how fast is the pair moving
When a clock reads 5 seconds a cart's velocity in the positive x direction is 3 m/s. What is the magnitude (in m/s2) of the acceleration of the cart
If the shortest-wavelength bremsstrahlung X-rays emitted from this tube is 23.40 pm, what is the voltage across the X-ray tube
A car starts from rest and travels for 10.0 s with a uniform acceleration of +3.0 m/s2. How far has the car gone
The small piston of a hydraulic lift has a cross-sectional area of 3.30 cm2, and its large piston has a cross-sectional area of 197 cm2. What downward force of magnitude F1 must be applied to the small piston for the lift to raise a load whose weight..
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