Distinguish between speed and velocity

What is the temperature change in 355 ml of water upon absorption of 34 kj of heat? (the specific heat capacity of water is 4.184 j/g∘c.) express your answer in degrees celsius?

If three uncharged styrofoam balls are placed together and agitated so that one gains + 3 C of charge and another gains + 4 C of charge, how much charge must there be on the third one?

A singer moves a note down one octave ... How has the sound changed?

Wax paper and frosted glass are translucent. This means that when light hits them: none of the light passes through them because it is all reflected. none of the light passes through them because it is all absorbed.

Stacy travels 5 times as fast as Eric. Traveling in opposite directions, they are 336 miles apart after 4 hours. Find their rates of travel.

Where do most metamorphic rocks processes take place?

A 13,500 kg railroad freight car travels on a level track at a speed of 4.5 m/s. It collided and coupled with a 25,000 kg second car, initially at rest and with brakes released. What is the speed of the two cars after collision

What type of waves move energy forward, but the source makes up and down

Why do helium balloons float? Talk about density of atoms and compare to elements in the air.

Identify and describe the metal in table salt