In the formula Q = m * c * ΔT, which symbol represents specific heat?

m

c

ΔT

Q

What must be true of the forces acting on objects if their motion is not changing?

Which of the following situations discusses work in the scientific sense? A. A body moves at constant velocity. B. An object is held three feet above the ground. C. An object is lifted three feet. D. A table holds up a 25 pound weight.

The velocity of an object includes its speed and what

What is the frequency of a wave whose source is vibrating at 5 cycles per second? A. 10 hertz C B. 50 hertz C. 5 hertz

Why are objects such as meteorites useful for dating the age of the earth

If you place 0◦C ice into 0◦C water in an insulated container, what will the net resultbe? Will there be less ice and more liquid water, or more ice and less liquid water, orwill the amounts stay the same? Explain.

At what speed would a car have to move in order to travel 20 kilometers in two hours?

Find the equivalent resistance Req between terminals a and b if terminals c and d are open and again if terminals c and d are shorted together. (Round the final answers to two decimal places.) With terminals c-d open, Req = Ω.

Which of these shows unbalanced forces at work on an object? A. an ice skater turning as he skates around an ice rink B. a bicycle chained to a bike rack at school C. a car driving at a constant 25 miles per hour on a straight street D.

A 4.25 kg block is sent up a ramp inclined at an angle theta=37.5° from the horizontal. It is given an initial velocity?0=15.0 m/s up the ramp. Between the block and the ramp, the coefficient of kinetic friction is? k=0.