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Question1
What pairs of forces act in the following situations?
a. a pitcher throws a baseball.
b. a batter hits a baseball out of the park.
c. a leaf falls to the ground.
d. the Moon orbits Earth.
e. you sit in a chair.
Question2
A camel sets out to cross the desert that is 29.3 km wide in the north-south direction. The camel walks at the uniform speed of 2.13 km/hr all along a straight line in the direction 50.4? north of East. How long will it take the camel to cross the desert? (Reply in units of hr) compute the camel's eastward displacement while he crosses the desert. (Respond in units of km)
what is the emf generated in the square loop as it is moved to the right in 0.2s out of the 0.8 T magnetic field? what is the intensity of the wave
You throw a ball straight up in the air. The instant after leaving your hand, the balls speed is 30 meters per second. Ignoring the effects of air resistance, predict how fast the ball will be traveling 2 seconds later.
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 58.0?. Dog A exerts a force of 260N , and dog B exerts a force of 320N
A 58 g tennis ball is served at 40 m/s. Find the de Broglie wavelength of the tennis ball
A 1.10kg , horizontal, uniform tray is attached to a vertical ideal spring of force constant 190N/m and a 295g metal ball is in the tray. How fast is the ball moving just as it leaves the tray
You are at a rock concert, and the sound intensity reaches levels as high as 120 dB. Calculate the amplitude of this oscillating force
an airplane travels 85 km,62degrees north of east. Its displacement is represented by the vector A in the drawing
question1when the door of the chapel of the mausoleum in hamilton scotland is slammed shut the last echo heard by
Bruce stands on a bank beside a pond, grasps the end of a 10.00-m long rope attached to a nearby tree and swings out to drop into the water. If the rope starts at an angle of 36° with the vertical, what is Bruce's speed at the bottom of swing.
A previous nuclear accident occurred where a worker received 100J/Kg of gamma radiation. Estimate the dose in rem of the worker
Consider a binary separator used to separate aluminum cans from glass. A total mass of 0.8 tonne/hr enters. what is the recovery of aluminum
Find out the altitude of the plane
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