Arocket test sled accelerates at a constant rate of 25 m/s2 from rest while moving along a straight track. the rocket engine turns off instantly when the sled reaches a speed 37 m/s. the sled then moves freely (acceleration = 0) for a period of 7 s, after which the brakes are automatically applied giving a constant deceleration of -15 m/s2. what is the total distance that the sled moves?

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

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?

Which composition of water moves to begin a deepwater current?