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You are in a hot-air balloon that, relative to the ground, has a velocity of 5.67 m/s in a direction due east. You see a hawk moving directly away from the balloon in a direction due north. The speed of the hawk relative to you is 1.00 m/s. What are (a) the magnitude and (b) direction of the hawk's velocity relative to the ground? Express the directional angle relative to due east.
A 60 kg person drops from rest a distance of 1.20m to a platform of negligible mass supported by a stiff spring. The platform drops 6cm before the person comes to rest.
A solid sphere is released from height h from the top of an incline making an angle θ with a horizontal. Calculate the speed of the sphere when it reaches the bottom of the incline, in the case that it rolls without slipping, in the case that it slid..
An electromagnetic wave has an electric field strength of 145 V/m at a point P in space at time t. What is the electric field energy density at P
q1. 0.7 kg block of ice is sliding by you on a very slippery floor at 3 ms. as it goes by you give it a kick
A wire of diameter 0.750 mm and length 30.0 m has a measured resistance of 2.40 ?. What is the resistivity of the wire
Consider the magnetic flux through a coil of wire with an area A=200cm^2 and n=100turns. If a magnetic field is increasing through the coil at a rate of 0.8 Tesla/sec, what is the induce emf around the coil?
A spring with spring constant 19 hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 2.5 and released. The ball makes 33 oscillations in 15 seconds. What is its utmost speed.
a hollow plastic sphere is held below the surface of a freshwater lake by a cord anchored to the bottom of the lake.
A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 4.40 104 s. What is the speed at which the satellite travels
Determine how much charge is on each plate of a 5 µF capacitor when it is connected to a 12 Volt battery
An air puck of mass 0.20 kg is tied to a string and allowed to revolve in a circle of radius 0.9 m on a frictionless horizontal table. What is the speed of the puck
A runner is running the first heat of a100 m race at a velocity of 6.9 m/s in an easterly direction. What is the relative velocity of the runner to the wind
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