# College Physics Questions and Answers

Recent questions in Physics

## Non-metals are generally poor conductors of heat and electricity. True or False

Jax Shea 2023-03-28

## ________ consists of a community of organisms interacting with their physical environment.

Paloma Houston 2023-03-28

## A clean nickel surface (work function 5.1eV), is exposed to light of wavelength 206nm. What is the maximum speed of the photoelectrons emitted from this surface?

smallcrystalslpxs 2023-03-27

## What is voltage sensitivity of galvanometer?

Fiona Chung 2023-03-27

## A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior.The diameter of the pencil is 7 mm and the diameter of the graphite is 1 mm.If the length of the pencil is 14 cm, find the volume of the wood and that of the graphite.[Assume $\pi =\frac{22}{7}$]

Abril Huynh 2023-03-27

## Identify the simple machine used in bicycle. Lever Inclined plane Wheel and axle Pulley

temujinzujb 2023-03-27

## What is lateral pressure?

poetinjam4gj4 2023-03-25

## Why do electrons flow from negative to positive and electric charge flows from positive to negative?

Gingan7mhd 2023-03-25

## Total Energy of the universe is constant? Yes, of course No, it’s conserved but not constant. Only mechanical energy is conserved. Can't say

Kyla Rollins 2023-03-25

## The volume of air taken in and out of the lungs during normal breathing is called___ tidal volume residual volume inspiratory reserve volume expiratory reserve volume

inframundosa921 2023-03-25

## A truck on a straight road starts from rest, accelerating at $2m{s}^{-2}$ , until it reaches a speed of $20m{s}^{-1}$ . Then the truck travels at a constant speed for $20s$ until the brakes are applied causing the truck to decelerate uniformly to stop it in additional $5s$ .(a) For how much time the truck is in motion?(b) What is the average speed of the truck for its entire motion?

breedvsr5 2023-03-25

## A capacitor has a capacity C and reactance X. If the capacitance and frequency both are doubled, the reactance will become A. 4X B.X/2 C. X/4 D.2X

crubats4b5p 2023-03-25

## The velocity function is for a particle moving along a line. What is the displacement (net distance covered) of the particle during the time interval [-3,6]?

Landyn Allison 2023-03-25

## What makes the planets rotate around the sun.

Monique Henson 2023-03-25

## What are the laws of optics?

Monique Henson 2023-03-25

## Which of the following statements about an electric circuit is/are true? The circuit can be closed only when the switch is in ON position. The circuit can be closed only when the switch is in OFF position. The wires should not have any breaks or gaps for circuit to be closed. It should have only one electric cell.

voluttaio7i7h 2023-03-25