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A wooden block with mass M = 3 kg is lying on a horizontal table. It is hit by a bullet with mass m = 5 g which moves horizontally. The bullet remains in the block after colliding with it. The block moves on the table a distance d = 25 cm. The coefficient of kinetic friction μk = 0.2. Find the starting speed of the bullet.
A bacterium using its flagellum as propulsion can move through liquids at a rate of 0.003 m/s. What amount of force must the flagellum generate to propel the bacterium at a constant velocity of 0.003 m/s
You jump horizontally from a cliff next to the ocean at a speed of 7.8 m/s. The cliff is 33.9 meters above the ocean. How far from the base of the cliff will you splash
Two moons of identical mass are 2000 kilometer apart. If superman pushes one moon away to make the distance 6000 kilometer, Compute the gravitational force between the moons
Calculate the force required to pull a copper ball of radius 1.50 cm upward through a fluid at the constant speed 7.00 cm/s. Take the drag force to be proportional to the speed
A 1967 Kennedy half-dollar has a mass of 1.150 x 10-2 kg. The coin is a mixture of silver and copper, and in water weighs 0.1012 N. Determine the mass of silver in the coin
Consider a car driving at constant velocity. The force of friction acting on the car in Newtons is, Find the magnitude of f when v = 50 miles/h
A highway curve with a radius of 650 m is banked properly for a car traveling 120 km/h. how much sideways force must the tires exert against the road if the car does not ski
Two steel guitar strings have the samelength. String A has a diameter of 0.50mm and is under 440.0 N oftension. Find the ratio of the wave speeds, Va/Vb, in these twostrings
A step-down transformer is used for recharging the batteries of portable devices such as tape players. find the voltage supplied to a tape player from the transformer
Local noon at 0o longitude corresponds to 12:00UTC. a) Given that our longitude is 84o 28' 33'' W, what is our local noontime in UTC? (b) What local time would this correspond to today? (c) From this and your estimate of the sun's current hour angle,..
What is the minimum area (in square meters) of the top surface an ice slab 0.251 m thick floating on fresh water that will hold up a 1060 kg automobile
An athlete performing a long jump leaves the ground at a 33.2 degree angle and lands 7.82m away. What was the takeoff speed
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