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Calculate the force required to pull a copper ball of radius 3.00 cm upward through a fluid at the constant speed 8.00 cm/s. Take the drag force to be proportional to the speed, with proportionality constant 0.950 kg/s.
A physics lab demonstrates the principles of simple harmonic motion (SHM) by using a spring affixed to a horizontal support, calculate the spring constant
A ball is thrown upward from the ground with an initial speed of 23.90 m/s; at = same instant, a ball is dropped from a building 16 m high. After how long will the balls be at the same height.
A scuba diver and her gear displace a volume of 69.7L and have a total mass of 72.9kg. What is the buoyant force on the diver in sea water
An airplane has an effective wing surface area of 15 m2 that is generating the lift force. What is the weight of the plane
An air-hockey puck floats across the table and bumps into a second puck, initially at rest. The first puck (mass 0.0250 kg) is moving initially due East at 5.50 m/s. Find the speeds of both picks after the bump
Two narrow slits are illuminated by a laser with a wavelength of 560 nm. Calculate the distance between the two slits
A car is parked 21.0 m directly south of a railroad crossing. A train is approaching the crossing from the west, What frequency does the car's driver hear when the horn blast reaches the car
A 15.0 kg block of ice at 0 degrees C falls into Lake Superior, which is a freshwater lake. What is the change in entropy, delta S, of the lake
question1a hunter aims straight at a target on the same level 130 m away.a if the bullet leaves the gun at a speed of
Two identical speakers are separated by 3.4m and produce sound of different frequencies equally in all direction. Determine the sound level in decibels at the point that is a midway between the speakers
A 0.2 kg steel ball is dropped straight down onto a hard, horizontal floor and bounces straight up. FIND the magnitude of the impulse delivered to the floor by the steel ball
A spring is compressed by 0.0748 m and is used to launch an object horizontally with a speed of 2.64 m/s. at what angular frequency (in rad/s) would it oscillate
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