Consider a mass initially moving at 7.50 m/s. (a) How long does it take to move 3.5 km if it accelerates at 0.550 m/s2? (b) How fast is it moving after this acceleration?
What will be an ideal response?
(a) 100. seconds
(b) 62.5 m/s
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Specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C The 1 kg block of ice melts into water. The amount of heat absorbed by the ice as it melts is __________
Fill in the blank(s) with correct word
What does this infrared photograph of a toaster reveal?
a. The wavelength or frequency of the main infrared radiation emitted depends on temperature. b. Heat flows by conduction. c. Heat flows by convection.
A 0.5 kg fish, hooked as shown below, starts to swim away at a speed of 3 m/s. The angular momentum of the fish relative to the hand holding the fishing rod is about
A.
.B.
.C.
.D.
.E.
.A key feature of the Falkirk Wheel in Scotland is that opposite caissons have the same weight when both are brim-full of water
A) and boats in each have about equal weights. B) and at least one boat is in each caisson. C) regardless of the weights of boats or no boats in each. D) none of the above