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You are piloting a small plane that can maintain an air speed of 136.5 kt (knots, or nautical miles per hour) and you want to fly due north (azimuth = 000°) relative to the ground. (a) If a wind of 33.0 kt is blowing from the east (azimuth = 090°), calculate the heading (azimuth) you must ask your copilot to maintain. (b) At that heading, what will be your ground speed?
A person pushes the shopping cart with a force of 100 N acting down at 45 degrees. Of the cart travelled at a constant speed of 1.00 meters per second what is the value of combined retarding force acting horizontally on the cart due to friction an..
What would be the equilibrium temperature when a 256 g block of copper at 314 °C is placed in a 140 g aluminium calorimeter cup containing 827 g of water at 11.5 °C.
The speed of object at displacement x = 20 m. The change in the momentum of the object at it is displaced from x = 12 to x = 20 m.
An airplane is flying with a velocity of 93.0 m/s at an angle of 22.0^circ above the horizontal. When the plane is a distance 119 m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
Objective questions based on work, energy, power.
An underwater diver sees the sun 55 degrees above horizontal. How high is sun above the horizon to a fisherman in a boat above the diver.
Explain the velocity of two different objects: heavy rock & light feather. 1st, describe what happens when the two objects are dropped on Earth. 2nd, compare this to what happens on the Moon.
An arrow is fired with a speed of 23 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into block before coming to rest relative to it. All through this process the arrow's deceleration has the magnit..
What are the x and y components of the shell. What is the acceleration of the two blocks, in meters per second squared.
A package in an airplane moving horizontally at 275 m/s is dropped while the altitude is 766 meters. How far forward from the spot over which it was dropped does the package land.
A coil with resistance 0.05( and self-inductance 0.01H is connected across a 12-volt battery of negligible internal resistance. a) How long after the switch is closed will the current reach 95% of its final value.
A student yells across a street at a concrete wall. The student hears an echo 0.500 seconds later. If the speed of sound in air is 343 m/s, what is distance from the student to the wall only.
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