Wednesday
May 22, 2013

# Posts by cole

Total # Posts: 113

Physics
a small body of mass m revolving in a horizontal circle with velocity V of a constant magnitude at the end of a cord of length L. As the body swings around its path, the cord sweeps over the surface of a cone. The cord makes an angle è with the vertical, so the radius o...

Physics
A pendulum oscillates at a frequency of 2 cycles per second. At t = 0 it is released starting at an angle of 20°C. Ignoring friction what will be the position (angle) of the pendulum at a. t = 0.25 sec b. t = 1.6 sec c. t = 5.0 sec

physics
what is the maximum acceleration equation?

physics
Consider the 45 N weight held by two cables shown below. The left-hand cable is horizon- tal. a) What is the tension in the cable slanted at an angle of 50? Answer in units of N. 007 (part 2 of 2) 10.0 points b)What is the tension in the horizontal cable?

physics
A block weighing 6.8 N requires a force of 2.9 N to push it along at constant velocity. What is the coefficient of friction for the surface?

Physics
A model rocket builder has constructed a rocket of total mass of 1.0kg. The rocket must achieve a speed of 300m/s 5seconds after vertically leaving the launch pad. A) What acceleration and net force is required? B) What thrust must the motor have to achieve this? Thank you!

science
name two ways mountains can effect the climate of an area

Physics 11
How much would a 80kg astronaut weigh on Earth? How much would they weigh 500 km above the surface of the Earth? Thank you!

Science
A revolutionary war cannon, with a mass of 2170 kg, fires a 18.1 kg ball horizontally. The cannonball has a speed of 146 m/s after it has left the barrel. The cannon carriage is on a flat platform and is free to roll horizontally. What is the speed of the cannon immedi- ately ...

math
one of the equal sides of an isoceles triangle is 3m less than twice its base. The perimeter is 44m. Find the length of the sides. The teacher gave us the answer of 17m for the two sides and 10 for the base. What formula did he use to find this.

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