PLZZZ I WILL GIVE BRAINLIEST A car traveled on a flat road. The car’s kinetic energy increased over time, while its potential energy remained constant. How did this change affect the car’s mechanical energy? A. The car’s mechanical energy increased because the sum of the car’s kinetic and potential energy increased over time.

B. The car’s mechanical energy remained constant because the car’s potential energy
remained constant.

C. The car’s mechanical energy decreased because the car’s kinetic energy increased.

D. There is no way to determine how the car’s mechanical energy changed based on the information presented.

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear

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?

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?