During a field experiment about speed, a scientist created the chart above. The chart shows distance and time measurements for a racing car on the straight section of a race track. What is the racing car's speed?

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?

Name two kinds of practical electric pumps.