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Q. A wheel of radius 0.80 m rotates at a uniform angular speed. If a point on the rim experiences a centripetal acceleration of 1.6 m/s2, what is the rim's tangential speed?
Q. At what speed do a bicycle and its rider, with a combined mass of 100-kg, have the equal momentum as a 1500 kg car travelling at 5 ;{ rm m}/ {rm s}?
find the ratio of vb to vr, where vr is defined above and vb is the boats speed with respect to the water.
An inventor claims to have devised a cyclic engine which exchanges heat with reservoirs at 300 K and 540 K, and which can produce 450 J of work per 1000 J of heat extracted from the hot reservoir. Is his claim feasible.
What is an approximate absorbed dose rate in Gy per day in water at the center of the bucket if 163 atoms of Cs-137 disintegrate per g s? Use the straight-ahead approximation and mean-radius method of calculating the photon dose. Give the answers for..
Compute the amplitude and phase at the observation screen
Find out an effective coefficient of kinetic friction
What are the total displacement and angle of displacement
Laser light at 635 falls on a double-slit apparatus with slit separation 6.9 .Find out the separation between the third and fourth bright fringes, as seen on a screen 1.4 from the slits.
The 100 block in 4.7 to reach the floor after being released from rest. What is the mass of the block on the left.
Two charged bodies exert an electrostatic force of 144 N on each other. If the distance between them is quadrupled and magnitude of one charge is cut in half, what is the new force between them.
What is its angular displacement in this time.
Three charged particles are placed at each of three corners of an equilateral triangle whose sides are of length 2.8 . Two of the particles have a negative charge: = -6.7 and = -13.4 . The remaining particle has a positive charge, = 8.0 . What is ..
what speed does boxcar have after 10 seconds.What is the object's displacement Dx.
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