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How much work is done pushing an 80 N box 2 m across ue surtout

What work is done?

a. 40 J

c. 160 J

b. 20 J

d. 240 J

What do you mean by kintic theory of matter

That is transferred by electromagnetic waves is called electromagnetic conduction.

What are the two most important processes in the cycling of oxygen in and out of the atmosphere? a. weathering and erosion b. evaporation and precipitation c. photosynthesis and respiration d. lightning fixation and fossil fuel emission

Light travels through a material at a speed of 2.1 x 108 m/s. What is the index of refraction for the material?

True or false most elements are solid at room temperature

What is the relationship between gravity and mass? What is the relationship between gravity and distance?

A person performs 300 j of work over the course of 60 seconds how much power they did required

If you have a 90 V power source with a 30-Ω and 60-Ω resistor in series, what is the voltage drop over the 60-Ω resistor? 30 V 2 V 60 V 90 V

How is thermal energy transferred during convection?

What is the purpose of a free body diagram? A. to show the velocity of an object B. to show the acceleration of an object C. to show the forces acting on an object D. to show the direction of motion vectors of an object