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A soldier has a huge contraption that notches a large 1 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. The soldier does 124 J of work in the process setting the bow/arrow combination and then releases the arrow. What is the speed of the arrow?
A 1000 kg car carrying four 76 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with utmost amplitude when its speed is 18 km/h. The car now ..
The magnitude of the force exerted by a spring is given by F = kx where x is the amount of stretching/compressing of the spring. What must be the units associated with k expressed in terms of fundamental SI units?
When a 0.20-kg mass is suspended from a vertically hanging spring, it stretches the spring from its original length of 3.0 cm to a total length of 7.0 cm. What is the maximum speed of the mass as it oscillates
Light of a certain frequency has a wavelength of 442 nm in water. The index of refraction of water for this light is 1.333. What is the wavelength of this light in benzene
Take two containers, each with volume 0.1 m3, containing ideal gases of monatomic He at T= 104 K and diatomic N2 at T = 236 K, What is the change of dimensionless entropy solely due to the fact that the gases have more volume accessible
A capacitor consists of two parallel plates, each with an area of 17.0cm2 , separated by a distance of 0.150cm. How much energy is stored in the charged capacitor
A modern engine of alloy construction consists of 24 kg of aluminum and 72 kg of iron. How much heat does the engine absorb
A ball is initially at rest in your hand. You then accelerate your hand upwards at 20 m/s2 for 0.1 s and release the ball. How far a distance did you lift the ball through
A 500 g cart is released from rest 1.00 m from the bottom of a frictionless, 30.0 degree ramp. how far does it roll back up the ramp
Two electrons are fixed3.6cm apart. Another electron is shot from infinity and stops midway between the two. What is its initial speed
A 6500 kg helicopter accelerates upward at 0.59 m/s2 while lifting a 1210 kg car. What is the lift force exerted by the air on the rotors?
The Cosmic Background Radiation Outer space is filled with a sea of photons, created in the early moments of the universe. What is the peak frequency of this radiation
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