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A hot air balloonist rising vertically with a constant velocity of magnitude 5.0 m/s, releases a sandbag at an instant when the balloon is 40 m about the ground. After its released the sandbag is in free fall.
A) Compute the position and velocity of the sandbag at .25 s and 1s after its release.
The voltage drop along a 30.0m segment of a power line made from copper wire (a very good conductor) is 1.2V, while carrying a current of 25.0 A. How large is the electric field along the wire
A 5,20 g bullet moving at 672 m/s strikes a 700 g wooden block at rest on a frictionless surface. What is the speed of the bullet-block center of mass
A helium-neon laser (?=633 nm) illuminates a diffraction grating. What is the spacing between slits of the grating
A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s collides head-on and elastically with another ball initially at rest. estimate the velocity of the target ball after the collision
An aquarium tank has inside dimensions of 1.5 m by 0.70 m by 0.60 m, what mass of water (in kilograms) would it contain
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg*M^2. find the rotational kinetic energy K of the rotating wheel
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.5g of copper and asked to make a cylindrical wire, What length l will you choose for your wire
Two runners start simultaneously from the same point on the circular 200 m track and run in opposite directions. One runs at a constant speed of 6.14 m/s and the other runs at a constant speed of 5.43m/s. When they first meet, for how long a time ..
Treating our rigid legged friend as a particle, what is the average force his feet exert on the ground when he slows down.
equal moles of helium and nitrogen were used to fill a 2.6 liter latex balloon porous membrane. it was determined that
A parallel-plate capacitor with circular plates of radius 65 mm is being discharged by a current of 7.5 A. What is that maximum value
A 20.0 kg crate sits at rest at the bottom of a 12.9 m long ramp that is inclined at 33 degrees above the horizontal. What is the total work done on the crate during its motion from the bottom to the top of the ramp
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