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At 1.00 x 103 rpm (and with a 8.31-cm rotor) what is the net force on a red blood cell whose mass is 9.12 x 10-14 kg?
An object (mass 10 kg) slides upward on a slippery vertical wall. A force F of 60 N acts at an angle of 60°.
The decision to drop the atomic bomb remains a very controversial one in American and world history. To what degree did fear of Moscow or a desire to intimidate
A 30-turn circular coil of length 6.0 produces a magnetic field of magnitude 2.0 mT at its center. Find the current in the loop.
A train running along a straight track at 30 m/s is slowed uniformly to a stop in 44 s. Find the acceleration and the stopping distance.
Isotopes and Radioactive Decay. Calculate the total radioactivity that results from one isotope in the human body. Must understand the concepts of half-life
Solve these equations simultaneously to arrive at the following equation: (m1-m2)g=(m1+m2+( I/R^2))a.
When HNO3 is added to HCN(aq), the CN^- concentration is:
A particle vibrates according to the equation x=20 cos 16t, where x is in centimeters. Find its amplitude, frequency, and position at exactly t=0 s.
A rock is dropped from rest into a well. The sound of the splash is heard 2.40 s after the rock is released from rest.
A secret communist spacecraft is observed approaching earth at 0.500c along a straight line from mars to earth.
Nuclear fusion offers the promise of unlimited energy to mankind. How is fusion different from fission? Where do on-going fusion reactions occur?
A runner accelerates to a velocity of 4.15 m/s due west in 1.50 s. His average acceleration is 0.640 m/s2, also directed due west.
Describe in your own words the following terms and give at least two examples for each:
Describes the basics of an x-ray tube for medical and basic-science applications. Through multiple choice questions, the principle of the acceleration
If its acceleration is constant, how fast (in mi/h) should this car be traveling after 0.250 miles of acceleration?
The weight of a book was measured using a scale. The scale showed 15N. Next, the book and the scale were placed in an elevator.
In Mostar, Bosnia, the ultimate test of a young man's courage was to jump off a 400 year old bridge (now destroyed) into the River Neretva.
The drawing shows three particles far away from any other objects and located on a straight line.
This chain is of uniform strength, but at any point it can support a maximum tension no greater than 3.00 times its weight without breaking.
The force exerted on a 0.140 kg baseball by a bat changes from 0.0 N to 1.0 X 10^4 N over 0.0010 s, then drops back to zero in the same amount of time.
An automobile with a mass of 100 kg is moving north on a level highway with a constant velocity of 80 km/h.
What average force would be felt by the individual holding the gun for the time the bullet accelerates along the length of the barrel?
How is this change related to the work done by the applied force and the frictional force? How is this change related to the work done by the net force?
If the initial horizontal velocity is 28.0 m/s, what angle (in degrees above the horizontal) did the arrow have when it was shot?