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A 0.25 kg ball moving north at 7.7 m s strikes a wall obliquely and rebounds heading east with the same speed of 7.7 m s . What was the magnitude and direction of the impulse on the ball?
During an expansion process of a closed system, the pressure of a gas changes from 100 kPa to 400 kPa according to the following relation: P = a + bV Where “a” is a constant, “b” = 100 kPa/m3, and “V” is the volume of the system in meters cube. If th..
A potter's wheel ( a solid uniform disk) of mass 6.1 kg and radius 0.65 m spins about its central axis. Calculate the moment of inertia of the system
In the Bohr theory of the hydrogen atom, an electron,oves in a circular orbit about a proton, where the radius of the orbit is 9.51 A. find the electrostatic force between the two
A rope can withstand 1.0 x 10^3 N of tension. If the rope is being used to pull a 10.0-kg package across a c=frictionless surface, what is the greatest acceleration that will not break the rope
Assuming the density of seawater is 1.03 g/cm3, find the total weight of water on top of a nuclear submarine at a depth of 155 m, what water pressure would a diver experience at this depth
a 30 ohm resistor has a voltage difference of 3 voltz across its leads. what is the power being dissipated in this resistor
Illustrate what is the average force exerted on the ball by the bat? Neglect the weight of the bat, since it is so much less than the force of the bat. Choose the direction of the incoming ball as the positive direction.
A 1400 kg car traveling in the positive direction takes 15.0 seconds to slow from 25.0 meters per second to 12.0 meters per second
The end of the spring is next to the 20- mark on the ruler.If a 3.0- mass is now attached to the end of the spring, where will end of the spring line up with the ruler marks?
a circular surface with a radius of 0.053 m is exposed to a uniform electric field of magnitude 1.59 times 104nc.the
An apartment has a living room whose dimensions are 2.9 m x3.9 m x 6.0 m. what is the mass (in grams) of the air
A uniform electric field of magnitude 380 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.60 cm. What is the work done by the field on the electron
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