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A hot air balloon is rising upward with a constant speed of 5 m/s. When the balloon is 5 m above the ground, the balloonist accidentally drops a compass over the side.
a.) How much time elapses before it hits the ground?
b.) What is its speed just before it hits the ground?
c.) How high above the ground is the balloon when the compass hits the ground?
Sheena can row a boat at 2.95 mi/h in still water. She needs to cross a river that is 1.17 mi wide with a current flowing at 1.79 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head 60.0° upstream.
A 211-? and a 221-? resistor are connected in series across an unspecified power supply, what is the exact current (in A) through the 221-? resistor
An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. The maximum speed of the object is 1.25m/s.
The potential at location A is 481 V. A positively charged particle is released there from rest and arrives at location B with a speed vB. The potential at location C is 878 V, and when released from rest from this spot, the particle arrives at B wit..
Consider three point charges located at the corners (points 1, 2, and 3) of a right triangle with sides "a", where q1 is located at corner 1, q2 at corner 2, and q3 at corner 3, Find the resultant force exerted on q3
An automobile tire has a radius of 0.307 m, and its center moves forward with a linear speed of v = 18.3 m/s, Determine the angular speed of the wheel
Jill jumps off the diving board with a velocity of 1.7 m/s at 38 degrees above horizontal. if the water surface is 2 meters below the board: with what velocity will she hit the water
A circular plastic disk of radius R, carrying a surface charge density? = ks, is rotating at constant angular velocity, Find the magnetic moment of the rotating disk
In order to drop a Pyrex glass marble 1.003 in diameter through the hole in the plate, how much must the temperature of the system be raised
In a Compton collision, if the wavelength of the photon is 1.00 pm and its deflected angle is 60.0°
A force F = 4.2 Ni + 3.7 Nj + 1.2 Nk acts on a particle located at x = 3.3 m. What is the torque on the particle around the origin
Calculate the y-component of the magnetic force.
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