How many known planets are in our galaxy?

An explosion that occurs at the end of a massive star's life is a (n) ?

A soccer ball with a mass of 0.45 kg is kicked and is moving at 8.9 m/s. Find the kinetic energy of the ball.

Which term defines the process of layers and layers of rock forming on large areas of the earth over time? A. stratification B. conglomeration C. lithification D. crystallization

How do changes in light wavelengths support the idea that the universe is expanding? A. Light from other galaxies shifts toward the blue end of the spectrum, which shows that the galaxies are moving away from Earth. B.

A fax machine uses 0.106 A of current in its normal mode of operation, but only 0.040 A in standby mode. The machine uses a potential difference of 120 V.

Imagine you are holding an apple. Does this apple have energy? how do you know?

Explain how inertia and the shape of a loop counteract the force of gravity to keep riders from falling out when a roller coaster goes through a loop traveling upside down

Which is not a characteristic of an ideal fluid? A. high viscosity B. laminar flow C. constant density D. constant pressure

What type of weather system brings calm, clear weather?

What is one reason supporting genetic modifications to food