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Q1. A box of well called as breakfast cereal states that one small portion of the cereal contains 110 Calories (1 Cal = 4186 J). If 2.0 percent of this energy could be converted by a weight lifters body into work completed in lifting a barbell, what is the heaviest barbell that could be lifted a distance of 2.1 m?
Q2. A bicycle wheel of radius r = 0.5 m starts from rest and rolls 150 m without slipping in 30 s. Assuming that the angular acceleration of the wheel was constant, calculate: a) angular acceleration, b) final angular velocity c) the tangential velocity and tangential acceleration of a point on the rim after one revolution.
In a head-on collision, the car stops in 0.279 from a speed of 16. The driver has a mass of 68, and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fraction of a second.
Two cars are travelling on a dirt road between 3 consecutive poles after 5.40s they are side by side at next telephone pole. The distance between the poles is 66.30m.
Find the use of an NPN common emitter transistor, advantage of direct - coupled amplifier and bandwidth of an amplifier.
A rookie quarterback throws a football with an initial upward velocity component of 15.33 and a horizontal velocity component of 20.4. Overlook air resistance.
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
A tank with a volume of 0.150 m contains 27.0 degrees celcius helium gas at a pressure of 100 atm. How various balloons can be blown up if each filled balloon so a sphere 30.0 cm in diameter at 27.0 and absolute pressure of 1.20atm .
A cylinderical water tank of radius 10ft and height 30ft is half filled with water. How much work is essential to pump all of the water out through a hole in the top of tank.
A stone is thrown vertically upward with a speed of 12.3 m/s from the edge of a cliff 84.6m high. What is the speed just before hitting.
What is the y component (in Newtons) of F
Estimate approximately the angular deflection of the muon's trajectory, given that the rest mass of muon is 100Mev and that the saturation magnetization in iron is equivalent to 1.6 x 10^23 electron moments per cm^3.
What is volume concentration
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
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