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At standard pressure, what would the temperature of water molecules be if they had a root mean square (rms) of velocity of 5.87 m/s?
A satellite circles the earth in an orbit whose radius is 2.78 times the earth's radius. What is the period of the satellite
A uniform ladder of mass M and length L stands on rough horizontal ground and leans against a smooth vertical wall with which it makes an angle ?. A man of mass m stands on the ladder a distance x from the bottom. Obtain expressions for the normal..
A styrofoam box used to keep drinks cold at picnic has total wall area(including the lid) of 0.80m2 and wall thickness 2 cm. it is filled with ice, water and cans at 0 Celsius. What is the rate of heat flow into the box if temperature of the outsi..
rate at which mechanical energy is transferred to the turbine blades, assuming 60 percent efficiency.
A crate of mass 45.0 kg is being transported on the flatbed of a pickup truck. The truck accelerates forward on level ground. What is the maximum acceleration the truck can have
The average density of the planet Neptune is 1644 kg/m3. The acceleration of gravity on its surface is 11.32 m/s2. Calculate the average radius of Neptune
According to Equation 20.7, an ac voltage V is given as a function of time t by V = Vo sin 2ft, what is the smallest value of the time at which the voltage equals one-half of the peak-value
Consider a vibrating piano string. The string is under a tension T, has a length L and diameter d. What is the frequency f' for the second string
What is momentum of a truck speeding down the highway at a given instant? Discuss how the momentum is changed if the truck loses some of its cargo while maintaining the same velocity.
A biology student rides her bike around a corner of radius 25 meter at a steady speed of 8.2 m/sec. If she is not skidding, what is the magnitude of the force of friction on her bike from the road
A box of textbooks of mass 25.3kg rests on a loading ramp that makes an angle a with the horizontal. find the acceleration once the box has begun to move
What is the minimum coefficient of static friction between the road and the tires on a car for the car to go around a flat curve at 45.0 mph
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