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Questions in physics

[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Homework Help] An accelerometer is a device that uses the extension of a spring to measure acceleration in terms of Earth's gravitational acceleration (g). What is the approximate acceleration if this accelerometer spring is extended just 0.43 centimeters? A. 0.24 g B. 0.80 g C. 2.00 g D. 2.40 g

[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Homework Help] Which region is the most dense? A. Photosphere B. Corona C. Radiation zone D. Core

[Homework Help] Which set of terms best defines what affects kinetic energy and potential energy, respectively? A. position, gravity B. gravity, velocity C. velocity, height D. height, position

[Homework Help] If the density and volume of an object are known, what else can be found?

[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Homework Help] What units are used to measure mass and weight? A. Mass and weight are measured in kilograms. B. Mass and weight are measured in newtons. C. Mass is measured in kilograms, and weight is measured in newtons. D. Mass is measured in newtons, and weight is measured in kilograms.

[Homework Help] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Homework Help] How many pounds of restraint would a 20 lb. child need to stay restrained in a car moving at 30 mph?