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Q. A gun shoots bullets that leave the muzzle with a speed of 341. If a bullet is to hit a target 177 away at the level of the muzzle, the gun should be aimed at a point above the target.
How far above the target is this point? (Avoid air resistance.)
If, instead, the gold is drawn out into a cylindrical fiber of radius 1.5µm, what is the length of fiber.
An emf is induced in a conducting loop of wire 1.16 m long as its shape is changed from square to circular.
A person driving her car at 49 km/h approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0 s before turning to red, and she is 30 m away from the near side of the intersection .
What is the least speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track
When people sleep, their metabolic rate is about 2.6 x10-4 C/(s.kg). How numerous Calories does a 69 kg person metabolize while sleeping 9 hours.
what volume should the balloon have after being inflated. Billiard ball A of mass mA=0.400kg moving with speed vA=1.80m/s strikes ball B, initially at rest of mass mB=0.500kg. As a result of collision, ball A is deflected off at an angle of 30.0 deg..
define How long are the skid marks. calculate the time it takes the sled to go 21 m down the slope.
The rock reaches a maximum height of 2×10^3 m, above the surface of the planet, before it falls back down. What was the first speed of the rock as it left the astronaut's hand.
The A string of a violin is 32cm long between fixed points with a fundamental frequency of 440Hz and a mass per unit length of 6.5×10-4 kg/m. What is the wave speed in string.
A butterfly moves with a speed of v = 12.0 m/s east of North. The y-component of its velocity is 8.00 m/s. The angle between the direction of its motion and the x-axis.
A 105-kg water skier floating in a lake is pulled from rest to a speed of 14 m/s in a distance of 25m. What is the net force exerted on the skier, assuming his acceleration is steady.
A ski gondola is connected to the top of a hill by a steel cable of length 680 m and diameter 1.5cm. As gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along cable. It is observed that it took 14 s for the p..
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