A star that is several thousand dimmer than the sun with a temperature than 10000 k would be classified as

Which statement best describes a device that has a high energy efficiency? Its ratio of energy absorbed to energy released is high. Its ratio of energy input to energy output is high. It wastes little energy. It wastes a lot of energy.

Photosynthesis is an endothermic chemical reaction that forms sugars from carbon dioxide, water, and the sun's energy. Which of the following must be true of photosynthesis?

What are some ways the oceanic crust and the continental crust are alike?

A car is rounding a curve that is the arc of a circle with a radius of r. if the car has a constant speed of 10 m/s, and its acceleration is 5 m/s2, what is the radius of the curve?

Airbags will deploy no matter from what angle your car is hit.

What is the product of 3.15 m and 2.006 m with the correct number of significant figures?

Consider what happens at the moment when the block leaves the surface of the globe. Which of the following statements are correct? - The net acceleration of the block is directed straight down.

A mechanic pushes a 3.00 ✕ 103-kg car from rest to a speed of v, doing 4,680 j of work in the process. during this time, the car moves 26.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Explain how latitude determines wind patterns

What is the difference between contact forces and forces that act through a force field?