What is the shaft''s angular speed
shaft of a pump starts from rest and has an angular acceleration of 3.00 rad/s2 for 18.0 s. At the end of this interval, what is (a) the shaft's angular speed and (b) the angle through which the shaft has turned.
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An arrow is fired horizontally with speed of 100 m/s directly at the bull's eye of a target 80 m away. when it is fired, the arrow is 2 m above the ground. how far short of the target does it strike the ground?
A woman is reported to have fallen 144 ft from a building, landing on a metal ventilator box, which she crushed to a depth of 18 in. She suffered only minor injuries.
A rocket exhausts fuel with a velocity of 1500 m/s, relative to the rocket. It starts from rest in outer space with fuel comprising 80 per cent of the total mass. When all the fuel has been exhausted its speed is: (the answer should be 2400 m/s)
Two radio-frequency point sources separated by 3.0 m are radiating in phase with λ = 0.50 m. A detector moves in a circular path around the two sources in a plane containing them. Without written calculation, find how many maxima it detects
The body surface -Control in nuclei of snail mitochondria -
A man weighing 660 and a woman weighing 430 have the same momentum. What is the ratio of the man's kinetic energy to that of the woman ?
Before going into orbit, an astronaut has a mass of 55kg. While in orbit, a measurement determines that a force of 100N causes her to move with an acceleration of 1.90m/s2. To regain her original weight, should she go on a diet or start eating mor
A ball falls from rest for 0.67 seconds, reaching a final speed of 6.57 m/s (downward or -) just prior to hitting the ground. Determine the average acceleration of the ball in m/s/s.
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Risky social support Another way in which the Internet can increase children's and adolescents' mental health problems is by fostering communication
When developing a grant proposal, it's important to set clear and measurable goals. One way to do this is by making sure your goals follow the SMARTIE system
Although the Internet can be a helpful outlet for some youth in terms of exploring their sexual identify (e.g., LBGT youth who live in small, conservative commu
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Respond to at least two of your colleagues (one assigned to each of the other two disorders) on two different days and compare your assigned disorder
Its key advantage is high internal validity; its disadvantage is that randomization is often ethically or practically impossible.
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