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Question: A cable lowers a1400kg elevator so that the elevator's speed increases from zero to 4.0m/s in a vertical distance of 6.3m. What is the force that the cable exerts on the elevator while lowering it? (Assume that the system is the elevator only.) The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.
Hagrid thinks he is more powerful than Snape.He performs 1800 J of work in a total of 10 seconds, How much power does each man exert
How many conduction electrons are there in a 5.00 diameter gold wire that is 40.0 long? How far must the sea of electrons in the wire move to deliver -39.0 of charge to an electrode
Two waves with identical frequency but different amplitudes A1 = 4.0 cm and A2 = 1.0 cm, occupy the same region of space (are superimposed). What is the amplitude of the resulting wave in that case
An electron microscope produces electrons with a 2.05 pm wavelength. If these are passed through a 1.05 nm single slit, at what angle will the first diffraction minimum be found?
a ball with mass 1kg is dropped from a height of 6m. the ball is caught by a person 2m above the ground.a. how much
Two space stations are at rest relative to each other and are 6.0 × 107 m apart, as measured by observers on the stations.
A 438 Hz sound wave travels through a substance. The wavelength of the sound wave is measured to be 3.2 meters. What is the speed of sound in the substance?
A ball rolls up a ramp, decelerating by 1.2 m/s every second. If the initial speed of the ball was 7.2 m/s, how far up the ramp will the ball travel? How long will it take for the ball to come to a complete stop?
For satellites to be in synchronous orbits with Earth, should their linear (tangential) velocities, or their angular velocities be equal to Earth's surface value? Provide an example of where you might find angular velocities to be the same while t..
What is the relaxed power of his eyes? I got 52.2 D which is correct If he has the normal 7.80% ability to accommodate, what is the closest object he can see clearly?
Calculate the rest energy of an electron in joules and Calculate the rest energy of an electron in MeV (1MeV=1.60×10?13J)
A diffraction grating has 1900 rulings/cm. On a screen 1.00 m from the grating, it is found that for a particular order m, the maxima corresponding to two closely spaced wavelengths of sodium (589.0 nm and 589.6 nm) are separated by 1.68 mm. Deter..
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