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Two spacecraft fly away from Earth, traveling in exactly opposite directions. As measured by an observer on Earth, spacecraft A travels at a speed of 0.392c and spacecraft B travels at a speed of 0.909c. What is the speed of spacecraft B as measured by A? Express answer as a decimal fraction of c.
In a playground, a wooden horse is attached to the ground by a stiff spring. When a 24 kilogram boy sits on the horse, the spring compresses by 28 centimeter. Find the oscillation frequency of the spring
Pre-lab (to be completed and submitted via Sakai before class): A round object with a rotational inertia of I = BM(R^2), where B is a constant, M is its mass and R is its radius, rolls without slipping a distance "d" down a plane inclined at an angle..
A 12kg hammer strikes a nail at a velocity of 8.2m/s and comes to rest in a time interval of 8.0. What is the average force acting on the nail
a thin rod of length 2b and mass m is suspended by its two ends with two identical vertical springs force constant k
a coil of self inductance 7.5 mh and resistance of 30 w is placed across the terminals of a 12-v battery of negligible
A 340 g air track cart traveling at 1.25 m/s collides elastically with the 300 g cart traveling in the opposite direction at 1.33m/s. What is the speed of the 300g cart after collision.
if the coefficient of static friction between your coffee cup and the horizontal dashboard of your car is micro
If the glider continues on with a speed of 0.300 m/s, what is the speed of the second glider? Is this collision elsatic?
a particle moves along a straight line path in such a way that its acceleration at any time is given by vt sint12. if
Make a table summarizing the rules for circuits with resistors: How to combine resistors in parallel, how do voltages behave in series and in parallel
what is the strength of the electric field 4.0 cm from a small glass bead that has been charged to 6.0 nc ? what is
Two microphones are located on the Y axis. One(1) is at the origin and the other(2) is at y= 1.5 meters. how far is the source of sound from each microphone
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