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An archer, about to shoot an arrow, is applying a force of +320 N to a drawn bowstring. The bow behaves like an ideal spring whose spring constant is 420 N/m. What is the displacement of the bowstring?
_________ m
The space shuttle is in a 300km -high circular orbit. It needs to reach a 610km -high circular orbit to catch the Hubble Space Telescope for repairs, How much energy is required to boost it to the new orbit
A rail car that weighs 34 N is accelerated at 8.3 m/s/s for 5.9 seconds. How much work is done on the rail car? The acceleration is constant
Suppose a 0.250-kg ball is thrown at 15.0m/s to a motionless person standing on the ice with outstretched arms. Calculate his final linear velocity
if the maximum height from which a person can jump without a parachute and still survive is 7.50 meters the maximum
Quentin is lifting a 10 kg dumbbell by pulling upward on it with a 108.1 N force. What is the acceleration of the dumbbell
Estimate the pressure increase required to impart
The work done by an external force to move a -8.90charge from point a to point b is 1.80×10?3 . If the charge was started from rest and had 4.87×10^4 of kinetic energy when it reached point b, what must be the potential difference between a and b?
q1. light of wavelength 443 nm in air enters a fishbowl filled with water and then exits through the crown-glass wall
A 100-? resistor, an inductor and a 3.0-µF capacitor are connected in series with a time varying emf of 10.0 V and frequency 1000 Hz. What is the inductance of the inductor
Consider a volume of 4.8 cubic meters of gas initially at STP (0 degrees C and 1 atm pressure). what is the volume (in cubic meters) of the gas
A glider moves frictionlessly along an air track that has been tilted by 1.5 inches over a span of 1.00 meters. Illustrate what is the expected acceleration of the glider.
Find the critical angle of incidence for a ray of light going from a diamond to air
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