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An airplane with a speed of 120 km/h is headed 30.0º east of north in a wind blowing due west at 30.0º km/h. What is the speed of the plane relative to the ground?
A 3.0cm tall object is 50cm in front of a convex mirror that has a -20 cm focal length. Calculate the image position in cm behind the mirror
The velocity of a 1.30 kg block sliding down a frictionless inclined plane is found to be 1.60 m/s. what is the angle of the plane with respect to the horizontal
To water the yard you use a hose with a radius of 3.50 cm. Water flows from the hose with a speed of 1.10 m/s. If you in part block the end of the hose so the effective radius is now 0.55-cm, with what speed does water spray from the hose.
a wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite
William Tell is shooting at an apple that hangs on a tree. The apple is a horizontal distance of 20.0 m away and at a height of 4.00 m above the ground. what is the arrow's initial velocity
A lump of mass 1.0 kg falls on it and sticks to the surface at a distance 0.7 m from the center. a) calculate the new angular speed of the disc b) if the lump gets unstuck and rolls of the disc.
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 7.18x10-2 kg/s. What is the speed at which gasoline moves through the fuel line
If it takes 2.25 minutes to heat water in a 250 gm copper kettle from 20 °C to 85 °C, using a 700 W burner, how much water must be in the kettle
explain in key words what the fundamental difference is between the water circulation in the ocean and in a large and
sketch the frequency spectrum representing a harmonic vibration of frequency 10v, modulated harmonically at a frequency v.
question 1 a 0.49 copper rod with a mass of 0.18 carries a current of 13 in the positive x direction. let upward be the
a binary star system consists of two equal mass stars that revolve in circular orbits about there center of mass. the
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