Which statement best describes the difference between acceleration and velocity? A. acceleration only shows a change in direction, but velocity shows a change in speed.

B .acceleration depends on direction, but velocity does not.

C. acceleration is a change in velocity, but velocity is speed in a given direction.

D. acceleration only shows change in speed, but velocity only shows a change in direction.

What type of nuclear decay causes the atomic number of an element to increase by 1?

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points