What is the definition of physical weathering?

Kenneth ran a marathon (26.2 miles) in 5.5 hours. What was Kenneth's average speed? (Round your answer to the nearest tenth.) a) 0.2 mphb) 4.8 mphc) 5.5 mphd) 144.1 mph

Which of the following statements about wind energy is not true? a. Wind energy is a nonrenewable energy resource. b. Wind energy is used to sail ships. c. Wind energy is not reliable. d. Windmills are currently being used to provide energy.

Consider the work of Thomson, Rutherford, and Bohr. In your opinion, which was the most important and why? Be sure to state what your selected person discovered and how it contributed to the model of the atom.

High pitch sounds are characterized by song waves that have a

Two 4.2 kg masses are connected to each other by a spring with a force constant of 28 N/m and a rest length of 1.0 m. If the spring has been compressed to 0.80 m in length and the masses are traveling toward each other at 0.

Which waves in the electronic spectrum are considered los energy waves?

The leader of a bicycle race is traveling with a constant velocity of + 12.60 m/s and is 11.4 m ahead of the second-place cyclist. the second-place cyclist has a velocity of + 9.20 m/s and an acceleration of + 1.50 m/s2.

A 50kg child on a skateboard experiences a 75n force as shown what is the expected acceleration of the child?

How many significant figures does the value 0.080 have? A. 1 B. 2 C. 3 D. 4

If a weightlifter lifts a 286 kg mass 0.25 meters above his head, how much PEg does the mass have?