Posts by maddi
Total # Posts: 25
The system starts at rest. A mass of 20kg (m1) is connected to a pulley of uniform mass m=5kg and radius 10cm and a mass of 30kg (m2) hangs on the other side of the pulley hanging 2m above the ledge Find the tension of the strings I tried to find the acceleration by finding ...
September 21, 2016
At the beginning of a roller coaster ride the car is staionary at the top of a 30m high hill and then begins to fall. Neglect any resistive forces. Calculate the speed of the car when it reaches the top of the second hill on the roller coaster. The second hill has abheight of 12m
August 20, 2016
math help me
Solve: 6C3 (1 point) 120 720 20 240 2. Which is not a combination? (1 point) choosing 3 toppings for your pizza lining 3 students up in a row choosing 2 desserts from a tray of 10 choosing 5 students to represent a class of 30 3. How many ways can you choose 3 dishes from a ...
April 30, 2015
A car travelling 19.4m/s passes apolice car at rest.As it passes, the police car starts up, accelerating with a magnitude of 3.2m/s. Maintaining that acceleration, how long will it take the police car to catch up with the speeding motorist?
April 6, 2013
A 1.2kg object is placed on a frictionless table and is attached to a hanging mass using a light string over a frictionless pulley in a fletcher's trolley arrangement. The 1.20kg object accelerates along the table at 2.31m/s while the hanging object accelerates down at the...
April 3, 2013
I hope this helps anyone. 11-7=4 36x4=144 42x4=168 Draw a triangle with an angle of 54 degrees. Then include the 54 degree angle in the 144 degree angle. Hope this makes sense. Angle 144 overlaps angle 54. 144-54=90 So the angle of the distance between the ships is 90. Then ...
September 24, 2012
A few here. 4x-8 ------ x(squared)-4 _________________________ 2m(squared)+5m-3 ------------------ m(squared)+4m+3 __________________________ 3x+4 ----- 12 (times) 8 ----- 9x+12 ________________________ x+5 ----- 16x (divided by) 3x-2 ----- 4x(squared) ____________________ 2-x...
June 8, 2010