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The crankshaft in a race car goes from rest to 3060rpm in 2.1s.
part a. What is the crankshaft's angular acceleration?
part b. How many revolutions does it make while reaching 3060rpm ?
A loop of wire with radius R has charge density 3theta^2 , where theta is in radians. Write an integral (but do not solve) to find the electric potential at the center of the loop
If a piece of irion (c=450 J/ kg C) at 65 C is dropped into 0.250 kg of ethyl acohol at 25 C and the final temperature of the two comes to 35 C what was the mass of the piece of iron
A projectile is fired at v0 = 381.0 m/s at an angle of ? = 65.7o with respect to the horizontal, How far will the projectile travel in the horizontal direction, R
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 black thin-walled cylindrical can, 10.0 cm in diameter and 20.0 cm tall is filled with water at 100°C and suspended in a 20°C room. Determine the initial rate of heat transfer due to radiation
A hollow ball with mass 0.50kg and radius 10cm rolls down a 3.0m high ramp without sliding.What is the maximum hight that the ball reaches?
An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is equal to 2.70 multiply.gif 10-28 kg, what is the speed of the heavier fragment
An electron is orbiting a proton under the Coulomb force in a hydrogen atom at a radius of 0.52 × 10-10 m
A plucked guitar string produces a sound wave of frequency 440 Hz. (a) What is the wavelength of the sound wave (assume the speed of sound in air is 340 m/s)? (b) How much time elapses between the impacts of two adjacent compression on your eardru..
Two small nonconducting spheres have a total charge of 93.1 C. When placed 1.01 m apart, the force each exerts on the other is 11.5 N. What is the charge on each? What if the force was attractive?
The space shuttle typically orbits 400 km above the earth's surface. The earth has a mass of 5.98 × 1024 kg, Use your knowledge of gravitation to determine the orbital speed of the shuttle's cargo
Two spheres with uniform surface charge density, first with a radius of 7.0cm and the second with a radius of 4.8cm , What is the surface charge density on the first sphere
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