Scissors are considered a compound machine because

they are made of two inclined planes

they are made of a lever and a wedge

they make work easier

Dermatitis is a common result of a. touching chemical solvents. b. inhaling dust particles. c. using gas welding equipment. d. breathing chemical fumes

What are properties of a liquid?

Which of the following is not in our solar system star black hole asteroid comet

The centripetal force exerted on stunt motorcyclist Biker Bob while riding on the inner vertical surface of a circular track is a. friction. b. his weight. - incorrect c. the normal force. d. none of the above

If 500 joules of energy is added to 1 kg of aluminum what would be its temperature increase

A rock is thrown from a cliff and hits the ground five seconds later at a distance of 50 m from the cliff how high was a cliff

A 15.0 m long plane is inclined at 30.0 degrees. If the coefficient of friction is 0.426, what force is required to move a 40.0 kg mass from rest at the bottom on the plane to the top of the plane with a final velocity of 8.00 m/s?

In a pig-calling contest, a caller produces a sound with an intensity level of 60 db. how many such callers would be required to reach the pain level of 120 db? 2 incorrect: your answer is incorrect.

Why is the use of scientific names important in biology?

1) what is a calorie?