How electricity has changed what we do for entertainment?

The Rocket Club is planning to launch a pair of model rockets. The table lists the rocket bodies and engines that are available.

What do geologists use to find absolute rock and fossil ages

Martin mixed sulfur (a yellow solid) with iron filings (a black solid) in a ceramic dish called a crucible. Then he separated them using a magnet. What kind of a change is this? A. change in state B. mixing and separation C. replacement D. synthesis

Which of the statements represent the laws of thermodynamics? Select all that apply. a) Matter cycles in the biosphere, but energy flows. b) The energy available to do work decreases as energy is transformed from one form to another.

Suppose each symbol is related to a particular species in the following ways: A green square represents a species of carnivorous dinosaur. A yellow triangle represents a species of fern tree. A blue star represents a species of conifer tree.

A rightward force of 302 n is applied to a 28.6 kg crate to accelerate it across the floor. thye coefficient of friction between the crate and the floor is 0.750. determine the acceleration

How the properties of sound waves change as they spread out in a spherical pattern

If legos are plastic can they be recycled?

At an accident scene on a level road, investigators measure a car's skid mark to be 93 m long. It was a rainy day and the coefficient of friction was estimated to be 0.35.

How does a shorter wavelength affect the frequency of a wave?