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

What's a similar project to the soda and mentos project?

Technician A says that the connecting rods should be marked before disassembly. Technician B says that pistons are cam ground so that when operating temperature is reached, the piston will have expanded enough across the piston pin area to become

Use hubble's law to determine the distance to a galaxy which is moving away at a velocity of 3,500 km/s. (assume that h = 70 km/s/mpc)

A weightlifter lifts a 1250N barbell 2m in 3s. How much power was used to lift the barbell

Which best distinguishes between the inner and outer planets? An asteroid belt is the dividing line between the inner and outer planets. The increase in the number of moons divides the inner and outer planets.

How did changing from a light drizzle to a downpour affect the river and the sediment The river increased its slope. The volume of the river decreased. The velocity of the river increased! There was more erosion in the stream.

Which of the fundamental forces explains the structure of atoms and molecules?

It always takes to change the motion of an object. O A. electricity OB. energy C. gravity D. density Reset

What might a psychodynamic theorist think about a person with extreme shyness?

Determine the magnitude of the acceleration for the speeding up phase.