An antelope trots through the grasslands at a velocity of 2 m/s. suddenly, a lion begins to chase the antelope. if the antelope accelerates at a rate of 4 m/s2, what is the antelope's final velocity after 7 seconds? assume that the antelope moves in only one direction. a. -26 m/s b. 26 m/s c. 56 m/s d. 30 m/s

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

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?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical