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wo cars that are identical except for their color are traveling on the same road.

the red car is traveling at a speed of 78 km/hr, and the blue car is traveling at a speed of 106 km/hr. which of the following statements is true?

a. the red car has more kinetic energy than the blue car.
b. neither car has any kinetic energy.
c. the blue car has more kinetic energy than the red car.
d. the cars have the same kinetic energy.

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?

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

How are positive ions different from neutral atoms