Why is chemical energy a part of all chemical reactions?

Can science answer every question

A force f = bx 3 acts in the x direction, where the value of b is 3.7 n/m3. how much work is done by this force in moving an object from x = 0.00 m to x = 2.7 m?

Two small objects are suspended from threads. When the objects are moved close together, they attract one another. What of the following could produce this result? a. On object is positively charged and the other is negatively charged. b.

Which unit do astronomers use for angular measurement? A. parallax B. arcsecond C. parsec D. light-year

Explain how the force of air resistance depends on an object's speed

Two railroad cars, each of mass 6500 kg and traveling 80 km/h in opposite directions, collide head-on and come to rest. how much thermal energy is produced in this collision?

What is a result of using a machine?

A boy rides motorbike with velocity of 20 m/s He accelerates his motorbike to a velocity of 30 m/s for 5 second. Calculate the acceleration produced in the motorbike. [Ams 2ms

How is a star's emission spectrum used to study stars?

A 52.0 kg skateboarder does a trick on a half-pipe. During the trick, he reaches a speed of 8.90 m/s. The radius of the half-pipe ramp is 3.00 meters. What is the minimum centripetal force necessary to keep the skater on the ramp?