Henry was given this cool toy for his birthday; he can use it to tell how fast someone is going at that moment in time. the toy must calculate the persons ...

average velocity

average speed

acceleration

instantaneous speed

You apply the brakes of your car abruptly and your book starts sliding off the front seat. Three observers explain thisdifferently. Observer A says that the book continued moving and the car accelerated from underneath it.

What is the purpose of armature

A 70 kg man climbs 4 meters up a tree whats his potential energy relative from the ground

8. The ratio of output power to input power, in percent? A. work. B. efficiency. C. horsepower. D. conductivity.

Which of the following is a scalar quantity? O A. 8 km/hr down O B. 45 ft to the right O C. 100 ft/min O D. 25 m/s south

An iron rod is: A:a good conductor of heat and electricity, but not magnetic B: magnetic and a good conductor of heat, but is an insulator of electricity C: magnetic and a good conductor of heat and electricity D: not magnetic and an insulator of

Which stage are there homologous chromosomes lines up down the middle of the cell

Suppose you were bungee jumping from a bridge while blowing a hand-held air horn. How would someone remaining on the bridge hear the pitch of the air horn as time increased? a. The pitch would get progressively lower (i. e., smaller frequency) b.

Area where magma from deep within the mantle melts through the crust

To obtain a learner's license, you must be at least years old.