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What is the weight (in Newtons) of a 12 kg dog?
A trampoline accelerates a 50 kg jumper upward with an acceleration of 2 m/s^2.
What is the weight of the jumper?
What is the force of the trampoline on her feet while it is pushing her upward? (700N)
What is the net force acting on her (in Newtons) while she is off of the trampoline and in the air?
When the trampoline pushes her upward, which is greater:
A. The force of the trampoline pushing up on her legs
B. The force of her legs pushing down on the trampoline
When she is in the air, Earth's gravity pulls her down. What is the other force in the Newton's third law pair?
An iron bar of mass, 0.81 kg, slides down a frictionless incline 0.39 m high. At the bottom of the incline it collides and sticks to a magnet of mass, 0.87 kg. What is the speed of the combined masses after collision.
The Balmer series in atomic hydrogen is the series of wavelengths emitted by the electron when it makes a transition from an energy level with n > 2 to the n = 2 level, Find the four largest wavelengths in the Lyman series
a block, m= 3 kg, slides on a frictionless horizontal surface.It then goes up a 15 degree incline having a coeffecient offriction uk=0.30 a distance L before stopping. find the acceleration of the block on the plane
A uniformly accelerated car passes three equally spaced traffic signs. The signs are separated by a distance d = 21 m. obtain the magnitude of the acceleration of the car
A car with mass of 1000.0 kg accelerates from 0 m/s to 40.0 m/s in 11.0 s. Ignore air resistance. obtain the average mechanical power output of the engine
At what average rate does the force from the cable. A falling skydiver has a mass of 54.5 kg. What is the magnitude of the skydiver's acceleration when the upward force of air resistance has the magnitude that is equal to one-fourth of his weight.
With light from a gaseous discharge tube incident normally on a grating with slit separation 1.92 ?m, Compute the wavelength of the light
A laser is mounted on a table 1.10m above the ground, pointed at a vertical mirror a horizontal distance 3.60m away. At what height does the reflected beam strike the wall
four charges, q1=1.5 nC, q2=4nC, q3=20nC and q4=-1nC are placed so that q4=(0,0) q1 is north of q4 and .5m away q2 is east of q4 and 1.0m away q3 is SW of q4 at angle of 36.9 degrees
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 point charge q1=5microC and is fixed in place. From a horizontal distance of 6cm a small sphere of mass 0.004 kg and charge q2=2microC is fired towards the fixed charge at 40 m/s. What is the acceleration of the sphere when it is traveling 25 m/..
A proton having an initial velocity of 17.2i hat bold Mm/s enters a uniform magnetic field of magnitude 0.360 T with a direction perpendicular to the proton's velocity. Determine the distance the proton traveled in the field
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