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A 120 g ball attached to a spring with spring constant 2.9 N/m oscillates horizontally on a frictionless table. Its velocity is 24 cm/s when x0 = 4.1 cm.What is the amplitude of oscillation? What is the ball's maximum acceleration? What is the ball's position when the acceleration is maximum? What is the speed of the ball when x1 = 3.1cm ?
A frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal. It is 3.2 meters long and 1.6 meters high. How far along the rough patch do the blocks go before stopping
A person fishing from a pier observes that five wave crests pass by in 7.4 s and estimates the distance between two successive crests to be 4.3 m. The timing starts with the first crest and ends with the fifth. What is the speed of the wave? m/s
A 5.0 kg bundle starts up a 30° incline with 128 J of kinetic energy. How far will it slide up the plane if the coefficient of friction is 0.40
A 52.1-kg high-school student hangs from an overhead bar with both hands, What is the tension in each arm when the arms make an angle of 31.00 o with respect to the vertical
Consider a wet roadway banked, where there is a coefficient of static friction of .30 between the tires and the roadway. what is the maximum speed the automobile can have
Automobile engine slows down from 4500 rpm to 1200 rpm in 2.5 s. compute (a) its angular acceleration, assumed constant and (b) total number of revolutions the engine makes in this time.
Suppose that the current is used up as it moves through a resistor. The potential difference across the resistor is kept the same and V/I = R. how can the resistance of the resistor be constant
A 110 g copper bowl contains 130 g of water, both at 24.0°C. A very hot 370 g copper cylinder is dropped into the water, causing the water to boil, How much energy (in calories) is transferred to the water as heat
Most of us know intuitively that ina head-on collision between a large dump truck and a subcompactcar, you are better off being in the truck than in the car. What average force does the seatbelt exert on the car driver
when an object is dropped from a height of 20.0m above the surface of planet B, what is the acceleration of a falling object close to this planet
A 90.0 kg fullback running east with a speed of 5.00 m/s is tackled by a 95.0 kg opponent running north with a speed of 3.00 m/s. Calculate the speed of the two players just after the tackle
When an AC source is connected across a 15.0-? resistor, the rms current in the resistor is 7.10 A. Find the rms voltage across the resistor. Find the peak voltage of the source. Find the maximum current in the resistor
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