1. Which of the following is an example of a second-class lever?

wheelbarrow

broom

crowbar

shovel

2. Which of the following is an example of a first-class lever?

rake

nut cracker

seesaw

elbow joint

Rank the measurements in order of increasing pressure. 4 kPa, 16 N/m2, 311 N/m2, 0.3 Pa 16 N/m2, 311 N/m2, 0.3 Pa, 4 kPa 4 kPa, 16 N/m2, 311 N/m2, 0.3 Pa 4 kPa, 311 N/m2, 16 N/m2, 0.3 Pa 0.3 Pa, 16 N/m2, 311 N/m2, 4 kPa

John pushes forward on a car with a force of 290 N while Bob pushes backward on the car with a force of 180 N. What is the net force on the car? A. 110 N forward B. 370 N backward C. 370 N forward D. 110 N backward

What is the range of wavelengths for fm radio (88 mhz to 108 mhz) ?

An engineer wants to set up simple password protection with no usernames for some switches in a lab, for the purpose of keeping curious co-workers from logging into the lab switches from their desktop PCs.

Describe the seasons on the planet Uranus.

Communicate is 25 a multiple of 2 or 5? how do you know?

When a ball is dropped it is easy to see that earth exerts a force on it. why cant you tell that the ball exerts a force on it. why can't you tell the ball exerts a force on Earth

What does it mean when a plane is perpendicular to the x-axis?

If the weight of an object that is submerged in a fluid is 10 N and the buoyant force on it is 20 N, what will happen to the object?|

A switch in an electric circuit controls the flow of electrons in the circuit. True O False