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An open railroad car of mass 2453 kilogram is coasting with an initial speed of 22 m/s on a frictionless, horizontal track. It is raining, and water begins to accumulate in the car. After some time, it is found that the speed of the car is only 10 m/s. Find how much water has accumulated in the car?
kg
A charge of 2.05mC is placed at each corner of a square 0.160m on a side. Determine the magnitude of the force on each charge
An electron is in a certain energy state in a one-dimensional,infinite potential well from x = 0 to x =L = 250 pm. What is the change in the electron's energy
a 10 kg block rests on top of a spring with stiffness 500 nm. what force is necessary to compress the spring to a
how long does it take the engine to lift the crate a vertical distance of 19.8 m? Friction in the system is negligible.
A block of mass M is attached to a spring (spring constant k) which is attached to a wall. what is the amplitude of the resulting simple harmonic motion
An orange crate which has a mass of 45.0 kg sitting at rest ona frictionless surface is acted on by a 14.5 Newton net force for6.0 seconds. What is the speed of the box at the end of the 6.0seconds?
A glass sheet 1.40 ?m (micrometer) thick is suspended in air. In reflected light, there are gaps in the visible spectrum at 538 nm and 615.00 nm.
A machine shop grinding wheel accelerates from rest with a constant angular acceleration of 2.3 rad/s^2 for 7.1 s, Find the total number of revolutions turned
A skier of mass m glides down a hill of slope ? at constant speed. If she travels a distance d down the hill, what is the work done by friction
A circular loop of wire can be utilized as a radio antenna. If a22.0-cm-diameter antenna is located 3.00 {\rm km} away from a 99.0-MHz source by a total power of 48.0 {\rm kW}, what is the maximum emf induced in the loop?
An earth satellite moves in a circular orbit with an orbital speed of 6300. Find the time of one revolution of the satellite
W hat is crates acceleration
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