What does the law of conservation of energy state about energy in a closed system?

Two cars having different weights are traveling on a level surface at different constant velocities. Within the same time interval, greater force will always be required to stop the car that has greater

The acceleration of an object can be described by the equation a=2d/t^2, where a is acceleration d is the distance, and t is time. if an object accelerates at a rate of 2 (m/s^2) for 10 meters what is the total time elapsed?

What weighs more a mole of feathers or bricks?

A certain dielectric, with a dielectric constant 26, can withstand an electric field of 5 * 107 V/m. Suppose we want to use this dielectric to construct a 0.3 µF capacitor that can withstand a potential difference of 2000 V.

A wave has a wavelength of 30 mm and a frequency of 5.0 hertz. What is its speed?

What is the "atomic mass" of an atom?

What type of energy comes from the food that we eat?

Which of the following are vector quantities? check all that apply. a. time b. displacement c. force d. mass

Imagine you are on a bus with a helium balloon tied on a string tied to the seat in front of you. the bus stops short to avoid running over a rabbit and you are thrown forward. what happens to the balloon in relation to the bus? 1. the balloon pops.

Give one reason why the density of iron is higher than the density of oxygen