What is the gravitational force on a 10 kg sled traveling at 3.5 m/s down a track?

a. 9.8 N

b. 3.5 N

c. 35 N

d. 98 N

Why is warm up important?

if a particle moving in straight line such that its position varies with time as x=5 (t-2) + 6 (t-2) ^2, then intial acceleration is

At very high pressures gases become?

Which of the following describes what happens as the temperature of a gas in a balloon increases? a. the speed of the particles decreases. b. the volume of the gas increases. c. the volume of the gas decreases. d. the pressure decreases.

What does 2NaOh mean

Two children playing on a frictionless garden gate invent a new game called "gate". The idea is that they will get on opposite sides of the gate and each push such that the gate does not move.

What is the frequency of 20 mm microwaves? A) 100 MHz B) 400 MHz C) 15 GHz D) 73 GHz E) 98 GHz

A measure of how much pulling, or tension, a material can withstand before breaking is - A. hardness. B. brittleness. C. tensile strength. D. malleability.

How work done against gravity can be expressed?

An electron is acted on by two electric forces, one of 2.7*10-14 N acting upward and a second of 5.8*10-14 N acting to the right. What is the magnitude of the electric field at the electron's location?