Which of these best describe the chemical composition of asteroids? select all that apply.

a. ice

b. silicate

c. hydrogen

d. carbon-based

Four events in nature are described below. Event 1: A volcano erupts under the ocean. Event 2: Cool air masses meet warm air masses. Event 3: Warm ocean currents meet cool ocean currents.

When did humans first learn that earth is not the center of the universe? around the time that early humans acquired language within the past 500 years about 2000 years ago we haven't;

What is the best definition of friendship? A.) a long-term connection with another person B.) a special relationship between people who enjoy being together C.) a special relationship between people who are the same age D.

As an object falls toward earth, the potential energy of the object ... A. Increases B. Decreases C. Stays the same

A capacitor is connected to a 9 V battery and acquires a charge Q. What is the charge on the capacitor if it is connected instead to an 18 V battery? A capacitor is connected to a 9 V battery and acquires a charge Q.

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 58.8 m/s^2. The acceleration period lasts for time 8.00 s until the fuel is exhausted. After that, the rocket is in free fall.

Why are tyres of formula one is different from four wheels drive?

The slope of a velocity versus time graph gives

Which of the following describes subatomic particles? carbon and nitrogen solids, liquids, gases larger than atoms protons, neutrons, and electrons

What is the difference between speed and velocity? A) velocity describes speed with direction. B) there is no difference. C) Velocity describes direction with position. D) Velocity is used in space, while speed is used on earth.