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Questions in physics

[Answered] The height, [tex]$h$[/tex], of a falling object [tex]$t$[/tex] seconds after it is dropped from a platform 300 feet above the ground is modeled by the function [tex]$h(f)-300-16 t^2$[/tex]. Which expression could be used to determine the average rate at which the object falls during the first 3 seconds of its fall? A. [tex]$h(3)-h(0)$[/tex] B. [tex]$h(\frac{3}{3})-h(\frac{0}{3})$[/tex] C. [tex]$\frac{h(3)}{3}$[/tex] D. [tex]$\frac{h(3)-h(0)}{3}$[/tex]

[Answered] Which of the following is the relative mass of an object? A) Weight B) Matter C) Relative matter D) Body weight

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

[Answered] Acceleration of the particle a = (4t² + 5t + 6) m/s². Find the velocity of the particle from 0 to 1 second.

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

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

[Answered] Which statements best describe displacement? Check all that apply. ☐ Displacement is measured along the path an object travels. ☐ Displacement is a measurement that includes direction. ☐ Displacement is the difference between a starting point and an ending point. ☐ Displacement is how far an object travels from starting point to ending point. ☐ Displacement is measured as a straight line between a starting point and an ending point.

[Answered] How does air from a balloon make things like clay, ping pong ball, and marble move across the floor?

[Answered] One may conceive light to spread successively, by spherical waves. Christiaan Huygens, 1600s What theory was Huygens writing about? A. the particle theory of light B. the reflection of light off objects C. the way objects refract light D. the wave theory of light

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