A massive truck collides with a less massive car. The force experienced by the truck is (less than, equal to, greater than) the force experienced by the car. The resulting acceleration of the truck is (less than, equal to, greater than) the resulting acceleration of the car. Please answer ASAP

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?

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?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving