As you slide a heavy box across the floor, friction applies a force of - 30 n over a distance of 2 m. how much work is done by friction?

On a violin, the highest note Mandy can play is an A-note, which produces a sound wave with a high frequency. The lowest note she can play is a G-note, which has a low frequency.

Which forensic science professional analyzes the evidence gathered by the field officer for analysis? A. crime scene reconstructionist B. lab officer C. forensic artist D. forensic botanist E. forensic entomologist

Explain why the rusting of an iron bar decreases the strength of the bar

How is reflection of light evident in nature?

Four soccer players are running down the field at the same speed. Player one weighs 145 pounds and is running toward the north goal, Player two weighs 175 pounds and is running toward the south goal, Player three weighs 155 pounds and is running

Which statement describes the formation of a nebula? A. An elliptical flattened disk begins. B. A bulging core with irregular stars around it forms. C. A large flattened core at the center contracts. D. Gases from a dead star gather and contract.

What are 4 things that can happen to a light wave when it hits an object?

Which of the following is NOT a strategy to prevent falls? a. keeping walking surfaces free from moisture and clutter b. replacing damaged electrical cords c. installing handrails for stairs d. keeping a ladder handy for reaching high places

What are a few things that could not be used as evidence?

Examples were friction is not useful