Ice causes a crack to form in a rock. This is an example of

mechanical weathering

chemical weathering

erosion

molecular weathering

How is energy transferred and conserved

When light shines through atomic hydrogen gas, it is seen that the gas absorbs light readily at a wavelength of 91.63 nm.

You are standing at rest at a bus stop. A bus moving at a constant speed of 5.00 m>s passes you. When the rear of the bus is 12.0 m past you, you realize that it is your bus, so you start to run 2 toward it with a constant acceleration of 0.960 m>s.

After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 54.0 cmcm. The explorer finds that the pendulum completes 103 full swing cycles in a time of 132 s.

Which of the following describes the weather? a.) miami has hot summers. b.) chicago is very windy. c.) it is snowing in denver. d.) it is usually sunny in florida

if light travels in a vacuum at 3.00 x 10^8m/s and its frequency is 7.44 x 10^7 what is its wavelength

the half-life of carbon - 14 is 5730 years. What fraction of carbon-14 would remain after 11,460 years?

An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object? A. 2.2 m/s2 B. 1.7 m/s2 C. 16.83 m/s2 D. 1.3 m/s2

A proton, starting from rest, accelerates through a potential difference of 1.0 kV and then moves into a magnetic field of 0.040 T at a right angle to the field. What is the radius of the proton's resulting orbit

Which of the following terms are needed to completely describe speed? Check all that apply. A. Units B. Direction C. Number D. Mass