What is the final temperature of 0.5 kg of water initially at 18 °C after 65 kJ of

heat is added

a. 31 °C

b. 42 °C

c. 49 °C

d. 27 °C

Give examples of not useful high friction

joe forgot his homework at home. he runs home to get it. he accelerates from 0 to 15m/s in 5 seconds, runs at 15m/s for 50 seconds, and then slows down from 15m/s to a stop in 3 seconds. what is the acceleration

SO what exactly is beyond our atmosphere, like space, has anybody actually been in space? or are we just making hopeless fantasies

You stand on a bathroom scale in a moving elevator. what happens to the scale reading if the cable holding the elevator suddenly breaks?

What is needed to give a large boulder a large acceleration?

A cannon fired horizontally at 20 m/s from the top of a cliff lands 80m away. how tall is the cliff

Who is galileo galilei

an athlete whirls a 7.00 kg hammer tied to the end of a 1.3 m chain in a horizontal circle the hammer moves at the rate of 1.0 rev/s what is the centripetal acceleration of the hammer

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

Ultrasound consists of sound at frequencies most people can hear?