Date

Page

710

Amachine raises a load of 750N

through a height

of 16m in 5 sec

calculate

a) work done by machine

b) Power of machine

What electron configuration has the greatest stability?

Given 1 inch ≡ 2.54 cm and 1 foot ≡ 12 inches, how many square centimeters are in 3.97 ft^2?

Write the equation of a function h (t) that represents the amount of heat in joules required to heat the bar to a temperature of t degrees Celsius.

During a supernova, the outer layers of a star are blown off and the star's core shrinks down by a factor of 10,000 or more to form a neutron star. As the core shrinks, conservation of angular momentum says that a. the core will spin faster. b.

In general, as air temperature decreases, the rate of condensation ... A. becomes indeterminable. B. decreases. C. increases. D. stays the same.

Consider a helium balloon on a string tied to the seat of your stationary car. The windows are closed, so there is no air motion within the car. The car begins to accelerate forward. Which way will the balloon lean, forward or backward

The force of gravity acts upon meteors from the rocky asteroid belt between mars and Jupiter. Where is the force of gravity most likely to pull these meteors

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. Which of the following best describes how such a telephone is able to transmit and receive information? A.

Calculate the gravitational potential energy relative to the ground when an 82 kg person climbs to the top of a 2.0 m stepladder.

A rock is thrown from a cliff and hits the ground five seconds later at a distance of 50 m from the cliff how high was a cliff