A car starting from rest, travels 0.40 km in 11.0 s. What is the

magnitude of its constant acceleration?

A wave with a period of 0.008 second has a frequency of A. 80 Hz. B. 125 Hz. C. 800 Hz. D. 12.5 Hz.

A good model of the cell membrane would be A. a chain link fence. B. a film of food wrap. C. a wall of stones and mortar. D. a river with objects floating in it.

Do all frequencies of sound at 40 decibels seem equally loud to your ears? explain

A 50.0 mL volumetric flask filled with aqueous solution of hydrogen peroxide has a total mass of 88.5 g. The mass of the volumetric flask is 16.5 g. What is the density of the aqueous solution of hydrogen peroxide? _g/mL

Erwin was measuring a radioactive substance in the laboratory. He measured 8.0 kg of substance X at noon Tuesday. At noon Friday, three days later, Erwin measured 1.0 kg of substance X. What is the half-life of substance X? Explain your answer.

Which car has the most kinetic energy? A car of mass 1500 kg with speed 5 m/s or A car of mass 1300 kg with speed 3 m/s or a car of mass 1200 kg with speed 2 m/s or a car mass 1400 kg with speed 4 m/s

A 500 kg table with 4 legs rests on solid flat ground. I place 3 books on the center of the table with masses of 10 kg, 20 kg and 30 kg respectively. What is the normal force between the ground and one leg of the table?

Fluorine-21 has a half-life of approximately 5 seconds. What percentage of the original nuclei would remain after 20 seconds

Which of these is an example of a totalitarian regime A.) Canada under prime minister Trudeau's rule B.) the Soviet Union under Josef lo

Since 1 pound = 4.45 newton, what is your earth weight in newtons?