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A 2.00-kg object is attached to an ideal massless horizontal spring of spring constant 100.0 N/m and is at rest on a frictionless horizontal table. The spring is aligned along the x-axis and is fixed to a peg in the table. Suddenly this mass is struck by another 2.00-kg object traveling along the x-axis at 3.00 m/s, and the two masses stick together. What are the amplitude and period of the oscillations that result from this collision? 0.300 m, 1.26 s 0.424 m, 5.00 s 0.424 m, 0.889 s 0.300 m, 0.889 s 0.424 m, 1.26 s
If the football has a mass of 0.47kg and the time of contact with the ball is 0.021s, what is the force exerted by the ball on the kicker's foot.
A stone is dropped from rest from the roof of a 100-m high building; 2.00 s after that, a second stone is thrown straight down with initial speed v0, and the second stone passes the first stone 21.6 m above ground.
A coin rests 14.60 cm from the center of turntable. The coefficient of static friction between the coin and turntable surface is 0.350. The turntable starts from rest at t = 0 and rotates with the constant angular acceleration of 0.8400 rad/s2.
What minimum coefficient of static friction is required? Is the reply you found reasonable? In other words, is he probable to stay on the merry-go-round.
Charge q is fired through a small hole in the positive plate of a capacitor. If q is a positive charge, does it speed up or slow down inside the capacitor? reply this question using the concept of force.
Change values of the initial position, initial velocity, and the acceleration of the car so that its center follows the same path as the dot. What is the equation that describes motion of the dot.
A woman throws a ball at a vertical wall d = 3.0 m away. The ball is h = 1.5 m above ground when it leaves the woman's hand with an initial velocity of 12 m/s at 45°.
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.6 m radius and is 1.2 m high. The walls are 1.0 cm thick.
Two objects each have a positive charge. The total charge on both objects is 390 µC. When the objects are placed a distance of 1.20 m apart, each exerts an electrostatic force of 21.3 N on the other. What is the charge on each object? (Round the a..
A string under a tension of 47.00N is used to whirl a rock in a horizontal circle of radius 2.60 m at a speed of 21.0 m/s. The string is pulled in and the speed of the rock increases.
The light energy that falls on a square meter of ground over the course of a typical sunny day is about 20 MJ. The average rate of electric energy consumption in one house is 1.0 kW. Find the energy consumption and area required by the solar cell
How far should you place the lens from the slide. Express the direction as an angle with respect to the +x axis.
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