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A mass of .5Kg is attached to a massless spring with spring constant k=600N/m, The system rests on a level friction free surface and is initially at rest. A second mass of .2kg makes an elastic head on collision with the mass attached to the spring. Thereafter the oscillating system vibrates with an amplitude of .25m.
1.) What was the incident speed of the second mass?
2.) What is the maximum value of the potential energy stored in the spring during the subsequent oscillations?
A 723-N person stands on a uniform board of weight 282 N and length 6.1 m. How far from the left end of the board is the person standing
The technique known as potassium-argon dating is used to date old lava flows and thus any fossilized skeletons found in them, What is the age of a piece of solidified lava with a 40Ar/40K ratio of 0.34
The ball is 21.9 m from the goal post. The ball is kicked with an initial velocity of 19.8 m/s at an angle θ above ground. Between what two angles, θ1 and θ2, will the ball clear the 2.74m high crossbar.
What is the capacitance of a pair of circular plates with a radius of 5.0cm separated by 2.9mm of mica? The dielectric constant of mica is 7
A child is twirling a 0.012 kg ball on a string in a horizontal circle whose radius is .100 meters. The ball travels once around the circle in .500 seconds.
cancer patient is undergoing radiation therapy in which protons with an energy of 1.2 MeV are incident on a 0.10-kg tumor. How many protons are absorbed by the tumor
A cart mass M moves on a frictionless track. It is attached to a string, which goes over a pulley wheel & has a mass m hanging from it. At t=0 s the cart starts from rest & accelerates. Find the tension in the sting & acceleration of the cart.
A ball is thrown at an angle of 52.5 degree above the horizontal at a speed of 8.2 m/s. What is the vertical component of the ball's velocity
At a dock, a crane lifts a 1200 kg container 30 m, swings it out over the deck of a frieghter, How much work is done by the crane on the container
Draw a picture of a polarized and unpolarized E-field (go ahead and just do it at one point in space using an arrow(s)). Polarized means that the E-field oscillates perpendicularly at a fixed orientation relative to the direction of propagation.
A small rock is thrown vertically upward with a speed of 18.0 m/s from the edge of the roof of a 40.0 m tall building. What is the speed of the rock just before it hits the street
How strong is the electric field between the plates of a 0.70 microF air-gap capacitor if they are 3.0mm apart and each has a charge of 77 microcoloumbs
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