Two vectors a⃗ and b⃗ are at right angles to each other. the magnitude of a⃗ is 4.00. what should be the length of b⃗ so that the magnitude of their vector sum is 9.00?

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be

How many times did thomas edison mess up the light bulb

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter