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A small mailbag is released from a helicopter that is descending steadily at 2.12 m/s.
a) After 5.00 s, what is the speed of the mailbag?
v =_____ m/s
(b) How far is it below the helicopter?
d =______ m
(c) What are your answers to parts (a) and (b) if the helicopter is rising steadily at 2.12 m/s?
v =_______ m/s
d = ______m
Two negative point charges are separated by 11.0cm and feel a mutual repulsive force of 3.45nC . The charge of one is three times that of the other. How much charge does each have
A simple Pendulum has a mass of 2.00 kg. The mass has a speed of 3.00 m/s, What is the maximum height (from the lowest position) the pendulum will reach
A 1.6-rm MHz sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as the heart beats.
A cannon ball is fired at an angle of 22 above horizontal with an initial speed v0 = 300 m/s, reaching a maximum height h before hitting the ground. What is the maximum height h reached by the ball
q1. if a thunder clap comes 1.4 s after the lightning strike how far away is the strike? calculating the wavelength and
At one instant, a 0.26 kg particle is located at the position [r=(5.9m)*i+(5.5m)*j]. What is the angular momentum of the particle about the origin, in unit-vector notation
question1a 12.0kg shell is launched at an angle of 55.0 degrees above horizontal with an initial speed of 150 ms. when
A supertanker filled with oil has a total mass of 11.7·108 kg. If the dimensions of the ship are those of a rectangular box 209 m long, 81.7 m wide
If a metric ton is 1 x10^3 kg, how many 88 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton.
Gadolinium sulphate obeys Langevin's theory of paramagnetism down to a few degrees Kelvin, Determine the degree of magnetic saturation in this salt at a temperature of 2K in a field of flux density 2 weber/m^2
At a party,3.00kg of ice at-4.20°C is added to a cooler holding 30 liters of water at 20.0°C. What is the temperature of the water when it comes to equilibrium
A child is riding across a rough field on a sled. Together, she and the sled have a mass of 73 kg. The sled is being pulled by her brother at an angle of 16º with a force of 356 Newtons. What is her acceleration if the coefficient of kinetic friction..
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