Recent content by enantiomer1

I'm expecting to get 3.00×10-9 due to, the fact that G*(2kg*2kg)/.1m + G*(2kg*2kg)/.5m = 3.00×10-9

A bowling ball weighing 71.2 N is attached to the ceiling by a 3.90 m rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured at 4.30 m/s I've figured out that...

If three balls (all weighing 2.0kg) are lined in a row, what is the magnitude of the net gravitational force on mass A due to masses B and C in the figure. B is 10cm from A, and C is 50 cm from A (and of course C is 40 cm from B) (here's a 'diagram') (A)----(B)----------------------------C...

The equation I was looking for is v0= sqrt(R[which in this case is just x]*g/sin(2 theta). However everytime I plug it in I get sqrt(390*9.81/sin(70))= 63.81 ft/s, converted to m/s this is 63.81 ft/s * .3048 = 19.45 and this is STILL wrong... what am I not adding?

Homework Statement A batted baseball leaves the bat at an angle of 35.0 degrees celsius above the horizontal and is caught by an outfielder 390 ft from home plate at the same height from which it left the bat. what was the initial speed of the ball and How high does the ball rise above the...

Homework Statement (Intro 1 figure) A chandelier with mass m is attached to the ceiling of a large concert hall by two cables. Because the ceiling is covered with intricate architectural decorations (not indicated in the figure, which uses a humbler depiction), the workers who hung the...

Homework Statement Find the tension in each cord (three cords) in the figure if the weight of the suspended object is 250 N. There are two systems System 1 Cord A is 30 Degrees below horizontal on the left, Cord B is 45 degrees below Horizontal on the right. Cord C connects the other two...

Homework Statement hey just having a hard time figuring out a question about tension and applied force: A dock worker pulls two boxes connected by a rope on a horizontal floor, as shown in the figure (Intro 1 figure) . All the ropes are horizontal, and there is some friction with the floor...

okay sorry scratch that I just had a brain fart or something -.- obviously a= m/s2 so there for all I had to do was divide the velocity by the time I swear to god I'm getting stupider sometimes

Homework Statement here's the problem A 68.5 kg skater moving initially at 2.40 m/s on rough horizontal ice comes to rest uniformly in 3.52 s due to friction from the ice. Homework Equations F= ma The Attempt at a Solution I'm sure this equation is reliant on finding the...

that's nice and all, but it isn't going to help me on the test

Homework Statement Hey, I think I understand this question but there's one or two parts that are really confusing me, the question is: A major leaguer hits a baseball so that it leaves the bat at a speed of 31.0 m/s and at an angle of 36.1 degrees above the horizontal. You can ignore air...

Homework Statement Hi, I'm stuck on this problem (it seems simple but I can't seem to get it down), The question is, "A certain cannon with a fixed angle of projection has a range of 1500 m. What will be its range if you add more powder so that the initial speed of the cannonball is tripled?"...