Thursday
December 12, 2013

Posts by sammy

Total # Posts: 448

Physics
How do you know how long you need to draw the vectors? Like if the gravity vector line is longer than the normal force, or if the friction line is longer than the applied force or whatever..?

Physics
The maximum force a grocery sack can withstand and not rip is 250 N. Calculate the greatest acceleration 20 kg of groceries can be lifted from the floor to the table such that the sack does not break.

physics
A 59.0-kg skater is traveling due east at a speed of 1.80 m/s. A 61.0-kg skater is moving due south at a speed of 6.20 m/s. They collide and hold on to each other after the collision, managing to move off at an angle south of east, with a speed of vf. Find (a) the angle and (b...

Science
Can you tell me specifically why this is so??

Science
huh?

Science
Why are aboriginal clan systems considered a human social system?

physics
A satellite circles the earth in an orbit whose radius is 2.01 times the earth's radius. The earth's mass is 5.98 x 1024 kg, and its radius is 6.38 x 106 m. What is the period of the satellite?

Math
If the length of the hour and the minute hands of a clock are 4 cm and 6 cm, respectively, what is the distance in cm between the tips of the hands at two o'clock?

physics
Two separate seismograph stations receive indication of an earthquake in the form of a wave traveling to them in a straight line from the epicenter and shaking the ground at their locations. Station B is 60 due east of station A. The epicenter is located due north of station A...

physics
Ilya and Anya each can run at a speed of 7.80 and walk at a speed of 3.20 . They set off together on a route of length 5.00 . Anya walks half of the distance and runs the other half, while Ilya walks half of the time and runs the other half. Part A How long does it take Anya t...

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