A ball is thrown into the air at an angle. What is the instantaneous velocity of this ball in the vertical direction at the top of its flight?

According to newton's second law of motion, how much force will be required to accelerate an object at the same rate if its mass is reduced by half? A. No change in the amount of force is needed. B. Four times the amount of force is needed. C.

How do elements form? A. Through the cooling of molten lava B. Through chemical reactions C. Through the evaporation of seawater D. Through fusion in stars and supernova I narrowed it down to B and D, Those make the most sense to me

Explain how metamorphic rocks are formed

What is another name for the heat-trapping gases

Latent heat of vaporization refers to which changes of state? liquid to gas or gas to liquid solid to gas or gas to solid solid to liquid or gas to liquid gas to liquid or liquid to solid

Select all of the answers that apply. Which statements are true regarding the scientific evidence supporting the big bang theory? Researchers found cosmic microwave background radiation, which is a heat imprint left over from the big bang.

How are magnetic poles and electrical charges similar? A. Their same forces repel each other, and their opposite forces attract each other. B. Their same forces attract each other, and their opposite forces repel each other. C.

As part of his meal, a workman has a cup containing a hot drink. In order to keep the drink hot whilst he eats the rest of his meal, he covers the cup, as shown in the figure. Which sources of energy loss does this action reduce? Tick two boxes.

When energy is transformed, the amount of usable energy?

If an object weighs 39.2 n on earth, what is its mass