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a 4.0 kg block slides along a frictionless surface with a constant speed of 5.0 m/s as shown. two seconds after it begins sliding, a horizontal, time- dependent force is applied to the mass. The force is removed eight seconds later. What is the speed of the Block at t = 11 seconds.
A swimming pool 2.6 m by 1.0 m has a uniform depth of 2.0 m, What is the absolute pressure at the bottom of the pool
A beam of unpolarized light shines on a stack of five ideal polarizers, Find the angle between the axes of each pair of adjacent polarizers
There are four answers required for this question. A playground merry-go-round (like a disk) has a mass of 220 kg and a diameter of 4.4 meters is rotating at 30 rpm. What is the rotational kinetic energy of the merry-go-round after the children jum..
In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 2.51 106 m/s. Find the centripetal acceleration of the electron
She moves her family to New York and begins work. Three months later, she is fired for no stated cause. Could she successfully sue for reinstatement or pay?
Standing at a crosswalk, you hear a frequency of 520 Hz from the siren of an approaching police car. After the police car passes, observed frequency of the siren is 455 Hz. Establish the car's speeds from these observations.
question1a woman walks 290 m in the direction 37deg east of north then 177 m directly east. finda magnitude andb angle
The wavelength of visible light ranges from 400 nm to 700 nm. Find the ranges of this light's angular frequency
What is the kinetic energy
A woman takes her dog Rover for a walk on a leash. To get the little pooch moving forward, How much force is tending to pull Rover forward
find What is the impulse delivered by the bat.
The initial height of the block is 0.5 m above the lowest part of the slide and the spring constant is 450 N/m.What is the block's speed when it is at a height of 0.25 m above the base of the slide? Explain how far is the spring compressed?
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