3. A carpenter uses a crowbar to remove the top of a box. The top has a resistance of 500 N. The

carpenter applies an input force of 250 N. What is the mechanical advantage of the crowbar?

aw-Hill Companies, In

the lift raises a car of mass 50 kg of 2.1 M that uses a force of 8330 n and takes four seconds to Raise the car what is the power of the lift

A mysterious rocket-propelled object of mass 45.0 kg is initially at rest in the middle of the horizontal, friction-less surface of an ice covered lake. Then a force directed east and with magnitude F (t) = (16.8 N/s) t is applied.

What committee decides which bills move to the House floor for debate and sets the terms for the debate? A. House Oversight Committee B. House Rules Committee C. House Ways and Means Committee D. House Appropriation Committee

For the Doppler effect to occur?

What would the time on the lower clock read if the frequency of the wave were 0.1 Hz

Which represents a system that is almost completely closed?

If many household substances classify as acids or bases what is the ph scale

A protostar forms once the nebular cloud condenses and the core begins

How do whales bats and dolphins use echolocation? A To scare away predators B To attract mates C To orient them selves and find food D To tell animals of there species where they are

How much force would be needed to move a car with the mass of 100kg to an acceleration of 5m/s/s?