The name used to describe the range of EM waves

Electronegativity a. increases across a period and increases down a group. b. decreases across a period and increases down a group. c. increases across a period and decreases down a group. d. decreases across a period and decreases down a group.

how much energy is required to turn 20 gram cube of ice at a temperature of - 10 degrees Celsius into liquid water at a temperature of 10 degrees Celsius

A 1700kg rhino charges at a speed of 50.0km/h. what average force is needed to bring the rhino to a stop in 0.50s?

Which would be more difficult to stop (greatest momentum), a. 44 magnum bullet with 4kg mass and a velocity of 16,500 m/s or a 2,000 kg truck moving with a velocity 35 m/s?

Which of these statements best describes how an increase in atmospheric carbon dioxide contributes to global climate change? Select one: a. Water bodies dry up and cause less rainfall. b. Forest fires become frequent which heats the Earth. c.

How much force is needed to stretch a spring 1.2 m if the spring constant is 8.5 n/m? 7.1 n 7.3 n 9.7 n 10.2 n

What forces are equal and opposite sides

B. how does the separation between galaxies compare to the separation between stars? based on your answer, discuss the likelihood of galactic collisions in comparison to the likelihood of stellar collisions.

Period vs string length String length (cm) 100cm, 75cm, 50cm, 25cm Each one below matches the strength length above time 10 periods (s) - trial 1 time for 10 periods (s) - trial 2 time for 10 periods (s) - trial 3

How could you determine the instantaneous speed during a trip?