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A fish takes the bait and pulls on the line with a force of2.5 {\rm N}. The fishing reel, which rotates without friction,is a uniform cylinder of radius 0.060 {\rm m} and mass 0.84 {\rm kg}. What is the angular acceleration of the fishingreel? How much line does the fish pull from the reel in0.40 {\rm s}?
Two cars of the same mass collide at an intersection. Just before the collision one car is traveling east at 40.0 km/h and the other car is traveling south at 70.0 km/h. what is the speed of the cars immediately after the collision
The pickup coil in an electric guitar contains 10,000 turnsand has a diameter of 2.1 mm. When thepickup coil is very close to a guitar string, there is a field ofmagnitude B = 0.09 T in thecoil. If this steel string is vibrating at a frequency of2..
Potential energy curves are a useful tool for making sense of nuclear processes such as alpha-decay, fission, and fusion. The potential energy curve for each different type of nucleus is different and depends on the number of protons and neutrons.
If you weigh 690 {rm N} on the earth, what would be your weight on the surface of a neutron star that has same mass as our sun and a diameter of 21.0 {rm km}.
question a radio wave sent from the surface of the earth reflects from the surface of the moon and returns to the
in a certain solar house energy from the sun is stored in barrelsfilled with water. in a particular winter stretch of
A piece of rock weighs 301 N in air and has an apparent weight of 202 N when suspended under water. What are the volume and density of the rock
at the instant the traffic light turns green a car that has been waiting at an intersection starts ahead with a
The shell, with radius R and negligible thickness, has net charge - 4.00 q. Find an expression for the electric field strength outside the sphere
An underwater scuba diver sees the sun at an apparent angle of 45.0 degrees above the horizontal. What is the actual elevation angle of the sun above the horizontal
A charge of +q is located atthe origin, while an identical charge is located on the xaxis at x = 0.49 m. A thirdcharge of +4q is located on the x axis atsuch a place that the net electrostatic force on the charge at theorigin triples, its directio..
A house has a floor area of 120 m2 and an outside wall that has an area of 31 m2. The earth's magnetic field here has a horizontal component of 2.60 10-5 T that points due north and a vertical component of 5.00 10-5 T that points straight down, to..
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