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The distance between two telephone poles is d = 53.5 m. When a 1.10-kg bird lands on the telephone wire midway between the poles, the wire sags h = 0.201 m.
how much tension does the bird produce in the wire? ignore the weight of the wire.
An airplane is flying through a thundercloud at a height of 2300 m. (Flying at this height is very dangerous because of updrafts, turbulence, what is the electric field at the aircraft
A projectile is projected from the origin with a velocity of 30.0 m/s at an angle of 45.0 degrees above the horizontal
A 70-kg man and a 55-kg woman holding a 2.50-kg purse on ice skates stand facing each other. What is the woman's recoil speed
A student wants to find out the speed of a high-speed projectile, but doesn't have a high-speed measuring device. what is the speed of the projectile just before the collision
A 0.287-kg particle undergoes simple harmonic motion along the horizontal x-axis between the points x1= -0.269 m and x2= 0.473 m. find the total mechanical energy of particle
A hammer is hung from a small hole in its handle, swung slowly to an angle of theta max = 0.1 radians and then released. Find the net torque on the hammer
An automatic weapon can fire 68 bullets per minute at V = 290 m/s. If each bullet has a mass M = 40 g, what is the average force in N on the shoulder
Two masses, M1=20.00 kg and M2=12.00 kg, are 50.00 m apart. Find the location of center of mass of the two masses
A block slides down an inclined plane, starting from rest and being pushed with a constant acceleration of 5.20 m/s2 over a distance of 20.4 cm. Find the total time the block is in motion
If the diameter of the fifth circular orbit of the hydrogen atom is 26.5 A, what is the frequency of revolution
A fly appears to be upside down and 3 times its actual size when viewed through a converging lens with a focal length of 14 cm. How far is the fly from the lens
At the very bottom of the circle, a too sharp knife is suddenly inserted to cut the string directly below the point of support. How far to the right of where the string was cut does the ball hit the floor.
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