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AP Physics
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A certain length of wire has a resistance of 21 ohms. This wire is melted down and from the same volume of material a new wire
3 answers
asked by
SARAHM
1,967 views
Two identical, small balls are suspended by separate 0.25m threads that are attached to a common point on the ceiling. Each ball
2 answers
asked by
Ben
858 views
A car with a mass of 1200 kg kg starts from
rest and accelerates to a speed of 12 m/s in 12.2 s. Assume that the force of
2 answers
asked by
Anonymous
780 views
A 2 stage rocket launches off at an initial angle of 75 degrees above the horizontal. The rocket has a mass of 250 kg, while the
1 answer
asked by
Anwar
708 views
A 5-kg box is placed on a frictionless ramp which is sloped at a 30-degree angle from horizontal. A rope attaches the box to a
1 answer
asked by
Bri
436 views
The length of the cannon barrel is 1.7 m and the cannon is aimed at a 38◦angle from the ground.The acceleration of gravity is
2 answers
asked by
Connor
555 views
Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is
1 answer
asked by
Ashley
986 views
A block and a spool have the same mass, and are each pulled across a level, frictionless surface by a string, as shown to the
3 answers
asked by
Anonymous
1,702 views
A person with the weight of 691 N stands on a bathroom scale in a motionless elevator. The elevator begins to move and the scale
2 answers
asked by
tobias
829 views
What minimum speed does a 130 g puck need to make it to the top of a 3.8 m -long, 23 ∘ frictionless ramp?
1 answer
asked by
Olyvia
464 views
You're driving down the highway late one night at 18 m/s when a deer steps onto the road 42 m in front of you. Your reaction
4 answers
asked by
Julia
1,385 views
Hi! I'm supposed to derive an algebraic formula to solve for the acceleration using one of the linear kinematics formulas of an
2 answers
asked by
Margaret
521 views
If Blemons leaves his classroom at 12 mph and Mrs. Naylor is stomping toward him at 60 mph, at what force will the two of them
1 answer
asked by
Eggbert
374 views
A jet plane is flying at a constant altitude. At time t1 = 0, it has components of velocity vx = 88 m/s, vy = 115 m/s. At time
4 answers
asked by
tyger2020
3,637 views
What is the minimum height you would have to place a solid ball of mass M and radius R (I = 2MR^2 / 5) on a hill in order for
2 answers
asked by
tyger2020
526 views
A gunman standing on a sloping ground fires up the slope. The initial speed of the bullet is v0= 360 m/s. The slope has an angle
2 answers
asked by
tyger2020
994 views
A small block of mass m=1 kg glides down (without friction) a circular track of radius R=2 m, starting from rest at height R. At
1 answer
asked by
tyger2020
753 views
Consider four masses arranged (clockwise from A at the top) in a cross (looks like a giant plus symbol). Each is 1cm from the
5 answers
asked by
Brett
527 views
What are vectors?
4 answers
asked by
Justus
419 views
A floodlight with a mass of 50 kg is used to
illuminate the parking lot in front of a library. The floodlight is supported at the
4 answers
asked by
Andrew Pampu
1,119 views
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