Four students are moving 80 N boxes from the floor to a shelf 4 meters high Student A moves 8 boxes in 10 minutes Student B moves 6 boxes in 8 minutes Student C moves 4 boxes in 6 minutes and st
What factor prevents a machine from operating at 100 percent efficiency
A 14 kg cart is coasting down a street at a steady speed of 7 ms what is the kinetic energy of the cart
A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground What was the potential energy of the rock before it began to fall
A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff
A hammer is dropped off a roof of an apartment building that is 80 meters high How long will it take to hit the ground
A baseball is hit straight up at an initial velocity of 150MS. what will be the baseballs speed when it hits the ground
A man and a woman exert a total of 900 N by pushing a car 20 meters across the street The man exerts twice as much force as the woman How much work does the man do
What term describes an educated guess about what the answer to a question might be
The custom of watching fireworks on the Fourth of July would be studied by this social science
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
Which of these rates is slowest 1760 yardsminute 60 mihr or 88 ftsec