A 10 Newton effort force is required to lift a 10 kg box just off the ground. What is the effort required to lift the box off the ground using a 3m long lever? [The fulcrum is placed 0.5m from the box.]

A uniform rod rotates in a horizontal plane about a vertical axis through one end. The rod is 3.46 m long, weighs 12.8 N, and rotates at 226 rev/min.

Which statements describe the applications of nuclear medicine scans? Check all that apply. O assess disease progression and tissue function utilize ultrasound utilize a biologically active molecule require a CT scan utilize a radionuclide tracer

A single electron has a charge of 2.9*10-15 ZZ. Using zeets and a fictitious unit of mass called the wiggle, ww, the charge-to-mass ratio of an electron is 2.4*106 Z/wZ/w.

Define fission and give an example of a reaction

As she climbs a hill a cyclist slows down from 25 mi/hr to 6mi/hr in 10 seconds what is her acceleration

Three light bulbs are wired in series. What happens if one of these light bulbs burn out

How do you distinguish a pure substance from a mixture?

Does the size of the particles change as the substance changes state?

What is the Z number of an atom with 9 protons, 8 neutrons, and 7 electrons? 7 8 9 16 17

What is the most dense crust