The number of neutrons is equal to the atomic number minus the atomic mass true or false

A layer of oil (n = 1.45) floats on an unknown liquid. A ray of light originates in the oil and passes into the unknown liquid. The angle of incidence is 65.3 degrees, and the angle of refraction is 64.8 degrees.

Which term below describes a measurement of how hard an object pushes against a surface? A. Heat B. Density C. Temperature D. Pressure

Why is Saturn almost as big as Jupiter, despite its smaller mass? a. Saturn's rings make the planet look bigger. Jupiter's strong magnetic field constrains its size. b.

If a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. Water will move out of the cell, causing it to swell. b.

Which of the following would increase friction? A. Motor oil B. Soap C. Sand D. Water

List 3 quantities of waves.

Bailey is on the tenth frame of her recent bowling competition and she needs to pick up the last pin for a spare and the first place trophy. She rolls the 7.05-kg ball down the lane and it hits the 1.53-kg pin head on. the ball was moving at 8.

Which of the following is a conservative force? 1. force due to friction 2. force due to gravity 3. both (1) and (2) 4. neither (1) nor (2)

A loop of wire lies flat on the horizontal surface in an area with uniform magnetic field directed vertically up. The loop of wire suddenly contracts to half of its initial diameter. As viewed from above induced electric current in the loop isa.

Which device is used to increase or decrease the voltage of an alternating current? O A. A commutator O B. A generator O c. A motor O D. A transformer