Which of the following accurately shows how to calculate the weight of a 20 kg object?

A) 20 Kg x 9.8m/s2

B) 20 Kg / mass of the earth

C) 20 kg/9.8 m/s2

D) 20 kg x mass of the earth

The element hydrogen has the highest specific heat of all elements. At a temperature of 25°C, hydrogen's specific heat capacity is 14300J / (kg K). If the temperature of a.

Which of the following best describes the internal layering of Jupiter, from the center outward? A) Core of rock and metal; mantle of lower density rock; upper layer of gaseous hydrogen; cloud layerB) Solid rock core;

Calculate the volume of a liquid with a density of 5.45 g/ml and a mass of 65g

Which way does a river flow?

A softball player is running at 6.9m/s coming into home plate. She leaps and slides the final 3.52 meters to home plate, avoiding being tagged out. If she stops at home plate, what was her acceleration?

You push a shopping cart filled with groceries (total mass = 20 kg) by applying a force to the cart 30° from the horizontal. If the force you apply has a magnitude of 86 N, what is the cart's acceleration? Assume negligible friction.

Does water expand more as the temperature drops even more below 0 deg? I am worried about the coolant in my rad. as the temp. is 40deg below.

A 1.00-kilogram ball is dropped from the top of a building. just before striking the ground, the ball's speed is 12.0 meters per second.

Why oil does not dissolve in water?

Which element has the highest number of protons? a. Calcium b. Argon c. Xenon d. Radon