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A block of mass 2.89 kg is pushed 2.20 m along a frictionless horizontal table by a constant 13.0 N force directed 23.0° below the horizontal. Determine the work done on the block by each of the following forces.
(a) the applied force
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(b) the normal force exerted by the table
(c) the gravitational force
(d) Determine the total work done on the block.
You have a string with a mass of 14.1 g. You stretch the string with a force of 8.63 N, giving it a length of 1.93 m. Then you vibrate the string transversely at precisely the frequency that corresponds to its fourth normal mode, that is, at its f..
you launch a small rocket up into the air. the rocket has a constant total acceleration of 12m/s^2 and burns for 10 seconds. ignoring air resistance: find the velocity of the rocket when it burns out
Find the magnitude of , the acceleration of the car after the brakes are applied. Express your answer in terms of some or all of the variables d, t, and v.
A man standing on the ground throws a pebble with an initial veloctiy of 14m/s at an angle of 70 degrees above the horizontal, How high above the ground is the window
A person with a mass 66.0 kg is riding in a Ferris Wheel with a radius of 70.0 meters and a period of 80.0 minutes. What normal force does the person experience
You throw a ball straight down from an apartment balcony to the ground below. The ball has an initial velocity of 4.95 m/s, Find the height of the balcony
A worker pushed a 65.0-kg block 10.0 m along a level floor at a constant speed with a force directed 39.0° below the horizontal. how much work did the worker do on the block
A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. How far short of the target should it drop the package
A stunt driver is attempting to jump 20 cars of total length of 42m using an inclined ramp. Calculate how long the stunt driver is in the air during this stunt
Suppose that you have two identical capacitors and a single resistor. If you make an RC circuit with one capacitor, What is the time constant for this circuit
Electrons are accelerated through a voltage difference of 265 kV inside a high voltage accelerator tube. What is the final kinetic energy of the electrons
A laser emits 7.50 × 1017 photons per second in a beam of light that has a diameter of 1.89 mm and a wavelength of 514.5 nm. determine the average electric field strength
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