Why do objects of different matter not obtain the same temperature after thermal equilibrium? example copper and aluminum

Tech A says the first external component to install when assembling an engine is the intake manifold. Tech B says the exhaust manifolds should be installed after the intake manifold. Who is correct?

1. You throw a ball from a window at a velocity of 2 m/s downward. How fast will the ball be moving when it hits the sidewalk 2.5 m below?

Relaying a message from a membrane receptor to a molecule that performs a specific function within a cell occurs when

A hummingbird flies in circles around a bush. if the velocity of the hummingbird is 720 cm/s and the radius of the circular path is 9.0 cm, what is the centripetal acceleration of the hummingbird?

Calculate the normal force of a 3 kg bowling ball sitting on the ground at the bowling alley

A 1300 kg car carrying four 84 kg people travels over a "washboard" dirt road with corrugations 3.2 m apart. The car bounces with maximum amplitude when its speed is 13 km/h.

Skeletal muscle cells have large stores of ATP that are readily available and alone can provide energy for maximal exercise lasting 30-60 seconds.

A catcher "gives" with a baseball when catching it. If the baseball exerts a force of 475 N on the glove such that the glove is displaced 8.97 cm, how much work is done by the ball? Answer in units of J.

Which of the following is the best sign that cooking pancake batter causes a chemical change

The electric field near the earth's surface has magnitude of about 150n/c. what is the acceleration experienced by an electron near the surface of the earth? express your answer to two significant figures and include the appropriate units.