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A marble slides without friction in a vertical plane around the inside of a smooth, 30cm-diameter horizontal pipe. The marble's speed at the bottom is 3.0m/sthis is fast enough so that the marble makes a complete loop, never losing contact with the pipe.
What is its speed at the top?
A tall tree is growing across a river from you. You would like to know the distance between yourself and the tree,as well as its height, How far away is the tree?
A meter stick with a mass of 0.159kg is pivoted about one end so it can rotate without friction about a horizontal axis. Calculate the angular speed of the stick
A 2.3 kg pendulum bob is pulled out such that its center of mass is 0.26 m above its lowest point and released. What is the gravitational potential energy of the pendulum
There is also blue light which has a transmitted angle in the water that is 0.56 degrees smaller than that of the red light in the water. What is the incident angle of blue light
A train engine weighs 5 times as much as aflatbed car. If the engine coasts at 3 km/hr into the boxcarthat is initially at rest and becomes coupled to the boxcar, how fast do the two move after the inelastic collision?
A small rocket maintains a constant thrust as to produce an acceleration of 2 m/s^2. determine the maximum achieved rocket thrust
A spaceship travels at a constant speed from earth to a planet orbiting another star. How far away is the planet, according to observers on earth
A copper container of mass 0.080kg and specific heat 387Jkg^-1K^-1 contains 0.3kg of water and 0.04kg of ice at 0 degrees Celsius. Find the mass of the water left in the container
A 1.85 g ping-pong ball rubbed against a wool jacket acquires a net positive charge of 1.85 µC. How many electrons were removed from the ping pong ball
consider the galvanic cell with sn2sn and agag both prepared with no3- as their anion and all solutions prepared at 1.0
A spherical surface completely surrounds a collection of charges. Find the electric flux through the surface if the collection consists of the following charges.
A sound wave of frequency 400 Hz has an intensity of 2.00 µW/m2. What is the amplitude of the air oscillations
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