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Q. Calculate the tension in a string that whirls a 2kg toy in a horizontal circle of radius 2.5m when it moves at 3m/s
Q. A 0.225 kg sample of tin initially at 97.5 degrees celsuis is dropped into 0.115 of water. The initial temperature of the water is 10 degrees celsius. If the specifc heat capacity of tin is 230 J/kg times degrees celsuis, what is the final equilibruim temperature of the tin-water mixture?
If you had been tasked to remove the water from New Orleans after Hurricane Katrina would you select a radial flow, mixed flow or axial flow pump for this purpose? Explain it briefly.
Find out the constant force that must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.20 s.opposite the fullback's direction of motion.
They then turn together around the spindle with their centers superposed. What is an angular frequency in of the combination.
When a charge that is free to move is released in the presence of an electric field, does it move from a region of high electric potential to a region of low electric potential or vice-versa? Does your reply depend on whether the charge is positiv..
find the magnitude of her centripetal acceleration. A small box is held in place against a rough vertical wall by someone pushing on it with the force directed upward at 27{rm ^circ} above the horizontal.
A luge and its rider, with a total mass of 104 kg, emerges from a downhill track onto a horizontal straight track with the initial speed of 53 m/s. suppose they stop with the constant deceleration of 2.30 m/s2.
Find the maximum height reached by the 2.70 {rm kg} object. In addition, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57.
A 0.157kg ball is thrown straight up from 1.94m above the ground. Its initial vertical speed is 9.60 m/s. A short time later, it hits the ground. What is the total work done by the force of gravity during that time.
A brick is thrown vertically upward with an initial speed of 4.90 m/s from the roof of a building. If the building is 98 m tall, how much time passes before brick lands on the ground.
How to find out the force of friction
A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is its angular speed at the instant it goes through an angular displacement of 4.2 rad.
What is linear acceleration
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