They are rare and can only be seen from certain locations on Earth when they occur. true or false?

How can I find the frequency of sound waves?

When you read a poem, you might pick up on a central message that readers can apply to their own lives. What is this central message called?

A spring has a relaxed length of 26 cm (0.26 m) and its spring stiffness is 11 n/m. you glue a 69 gram block (0.069 kg) to the top of the spring, and push the block down, compressing the spring so its total length is 16 cm.

A robot probe drops a camera off the rim of a 278 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s2. Find the velocity with which it hits the ground. Answer in units of m/s.

A student obtained a clean dry glass-stoppered flask. she weighed the flask and stopper on an analytical balance and found the total mass to be 31.601 g. she then filled the flask with water and obtained a mass for the full stoppered flask of 60.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.