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a frictionless track ABCDE ends in a circular loop of radius "R". A body slides down the track from point "A" which is at height "h" = 5 cm. Maximum value of "R", for which the body successfully completes the loop is ???
What if the track is not frictionless ??
Suppose you carry a bag of groceries weighing 124 N from your car to your kitchen, a distance of 61 m, find the work done by the force you exert on the bag
question1suppose that for some process the cross section for absorption of a certain wavelength photon is 10-16 cm2 and
A 5.00?F capacitor that is initially uncharged is connected in series with a 5.50k? resistor and an emf source with E= 145V negligible internal resistance, Just after the circuit is completed, what is the voltage drop across the capacitor
A small block is attached to an ideal spring and is moving in SHM on a horizontal, frictionless surface. When the amplitude of the motion is 0.090m , it takes the block 2.90s to travel from x= 0.090m tox= -0.090m.
This process is continued indefinitely, at 12s intervals, as measured in the rest frame of the spaceship. Assume that each boost takes a negligibly short time compared with 12s. derive an equation that gives the velocity of the ship after any boost..
A 110 kg mail bag hangs by a vertical rope 4.0 m long. A postal worker then displaces the bag to a position 2.0 m sideways from its original position, always keeping the rope taut. As the bag is moved to this position, how much work is completed by t..
A bullet weighting 10g is fired with a velocity of 088 m/s. After passing through a mud will 1m thick, its velocity decreases 10 100 m/s. Find the average resistance offered by the mud wall.
An insulated beaker by negligible mass contains liquid water by a mass of 0.315kg and a temperature of 65.8C. How much ice at a temperature of -15.0C should be dropped into the water so that the final temperature of the system will be 28.0C?
A fancy sports car passes Big Ben at a speed of 0.2 c. What time interval will the driver measure for a one-second interval on the large clock
In order for Sasha (in A-5) to feel weightless at the top of the ride, a) at what linear speed must the Ferris wheel tum? b) At this speed, how much would she appear to weigh at the bottom of the Ferris wheel.
An object with mass 2.7 kg is executing simple harmonic motion, attached to a spring with spring constant k=280N/m. Calculate the maximum speed attained by the object
A sinusoidal wave travels along a stretched spring. A point along the string has a maximum velocity of 1.0 m/s and a maximum displacement of 2cm. What is the maximum acceleration at that point
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