A 15.0-kilogram object is moving at 7.50 meters per second on a horizontal, frictionless surface. What is the total work that must be done on the object to increase its speed to 11.5 meters per second? A. 422 J
B. 570 J
C. 120 J
D. 992 J

(Someone please help, I can’t move on with my exam until I answer this and I have no clue how to do it)

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d