Recent content by stargirl17

Homework Statement a 2.00 g ice flake is released from the edge of a hemispherical bowl whose radius is 22.0 cm. the Flake-bowl contact is frictionless. How much work is done on the flake by the gravitational force during the flake's descent to the bottom of the bowl? Homework Equations...

i know it means how do you know this. that's just how the question was written. and that didnt answer the questiom but i figured it out

Homework Statement A pitcher throws a fastball to the catcher. Assuming the speed of the ball does NOT change appreciably in flight a) which player exerts the larger impluse on the ball? why? b) which player exerts the larger force on the ball? why? Homework Equations The...

Homework Statement A 24,000 kg box car traveling north at 2 m/s collides with an 18,000 kg box car. Upon collision the two box cars lock together. What is the velocity of the 18,000 box car before the collision if after the collision the two box cars are traveling south at 1 m/s...

mass of a, velocity of a initial etc

like the cars combined

Homework Statement A 24,000 kg box car traveling north at 2 m/s collides with an 18,000 kg box car. Upon collision the two box cars lock together. What is the velocity of the 18,000 box car before the collision if after the collision the two box cars are traveling south at 1 m/s? Homework...

yes it was what is the magnitude of the momentum? thank you :)

Homework Statement A 20-Newton force pulling an object up a hill at a constant rate of 2 m/s. The diagram shows a box that is 5 kg on an incline that is 30 m long and 10 m high. the answers are 1) 0 kg-m/s 2) 10 kg-m/s 3) 100 kg-m/s 4) 600 kg-m/s The equation for momentum is p=mv...

m/r2 : 1/r2

oh ok cool. do u think i should just leave the answer as Fg/m= (Gm1m2/ r^2)/m

isn't that the answer for 1?

awesome thank you :) can i have a hint about 2?

4 times as great

oh so it would be b) 1/4?