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Two 3.2 kg physical science textbooks on a bookshelf are 0.15 m apart. What is the magnitude of the gravitational attraction between the books?
Define the four basic principles of research: autonomy, beneficence, nonmaleficence and justice. Then explain how these four principles interrelate in the conducting ethical research.Explain the importance of conducting ethical research.
You are riding in an elevator on the way to the eighteenthfloor of your dormitory. The elevator is accelerating upwardwith a = 1.90 m/s2. what magnitudeof force must you apply
q1. a diffraction grating is illuminated with light if wavelength 500nm. it produces the first minimum at 45 degree.
Calculate the hang time of a person who moves horizontally 3 m during a 1.25-m high jump. What is the hang time when moving 6 m horizontally during this jump
The angle of refraction is 23.4°. Find the angle of reflection.
What initial velocity (magnitude and direction) does the ball have relative to a person standing on the ground if the hot-airballoon is rising at 6.0 m/s relative to the ground during this throw
As you stand by the side of the road, a car approaches you at a constant speed, sounding its horn, and you hear a frequency of 76 Hz. What is the speed of the car
a mass of 40 kg is attached to the end of a cord that passes over a frictionless pulley and then has a mass of 35 kg
the mean distance between the center and the center of the moon is 3.84x108 m and the moon has an orbital period of
suppose that the speed of light in a vacuum were one million times smaller than its actual value c 3.00 times 102 ms.
A 20.0 kg mass at rests decays into a particle that is moving at 0.30c. What is the mass of this new particle
Four objects are situated along the y axis as follows: a 2.04 kg object is at +2.94 m, a 3.03 kg object is at +2.59 m, Where is the center of mass of these objects
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