What is a rock that is full of tiny connected air spaces

Can a car that has only been traveling at different speeds in a straight line east have accelerated north?

Example of experiment

1 - A 30 gram bullet travels at 300 m/s. How much kinetic energy does it have?

This is the rate of flow electricity

You took a running leap off a high diving platform. You were running at 3.1 m/s and hit the water 2.4 seconds later.

How are mass and weight different? a. Mass is the space an object takes up and weight is the effect of gravity on mass. b. Mass is the amount of matter and weight is the effect of gravity on mass. c.

What were the discoveries of astronomers like Copernicus and Galileo?

A major obstacle to developing good human relations is that

4.) An apartment building is on fire and a guy is trapped on the fire escape ladder. There is a dumpster that is 6.3m away and is filled full of trash, and he is 7m above it.

Calculate the temperature of and power-per-area radiated from a blackbody if the spectral intensity density peaks at (a) gamma rays, λ = 1.50*10-14 m; (b) x rays, 1.50 nm; (c) red light, 640 nm; (d) broadcast television waves, 1.