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A wooden block is cut into two pieces, one with three times the mass of the other. A tiny depression is made in both faces of the cut, so that a firecracker can be located in it with the block reassembled. The reassembled block is set on a rough-surfaced table and the fuse is lit. When the firecracker explodes, the two blocks separate and slide apart. The small pieces slides a distance "d", the big pieces slides a distance "D". Determine the ratio of d/D of distances each block travels?
A sprinter with a mass of 80kg accelerates from 0 m/s to 9 m/s in 3 sec. What is the net force of the runner
calculate the wavelength for maximum power from a blackbody radiator assuming its surface temperature to be
An observer sees two spaceships moving in opposite directions, Find the speed of one spaceship relative to the other
the scientific method is useful in problem solving and decision-making in a wide variety of fields. in this
The two headlights of an approaching automobile are 1.5 m apart. Assume that the pupil diameter of theobserver is 4.4 mm, find At what maximum distance will this occur
a typical house is built on a cement slab with four walls and a roof. the thermal conductivities of the four walls the
Helium-neon laser light (λ = 632.8 nm) is sent during a 0.270 mm wide single slit. What is the width of the central maximum on a screen 1.00 m from the slit?
A fire hose 10 cm in diameter delivers water at the rate of 16 kg/s. The hose terminates in a nozzle 3.4 cm in diameter. What is the flow speed in the nozzle
The first two anti-stokes lines in the rotational Raman spectrum of N2 occur at 29709.1 and 29717.1cm^-1. Calculate the bond length of N2 molecule.
1.an aluminum sphere is 5.50 cm in radius. what is its volume expansion coefficient if it increases in volume 2.00 cm3
A child and sled with a combined mass of 49.0 kg slide down a frictionless slope. what is the height of the hill
Hail comes straight down at a mass rate of m/%u0394t = 0.030 kg/s and an initial velocity of v0 = -10 m/s, calculate the force exerted by the hail on the roof
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