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A van travels due east with a speed of 55.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car create an angle of 60.0 degree with the vertical. Determine the velocity of the rain with respect to the following reference frames.
(a) the van
m/s
(b) the Earth
A convex mirror has a focal length of magnitude 6.23 cm. (a) If the image is virtual, what is the object location for which the magnitude of the image distance is one third the magnitude of the object distance? (Enter distance in cm from the front of..
Two 1.50-V batteries-with their positive terminals in the same direction-are inserted in series into the barrel of a flashlight. What is the bulb's resistance
After 6.00 kg of water at 70.0 oC is mixed in a perfect thermos with 3.00 kg of ice at 0.0 oC, the mixture is allowed to reach equilibrium. When heat is added to or removed from a solid or liquid of mass m and specific heat capacity c, the change ..
An object is placed 20 centimeter from a first converging lens of focal length 10.6 centimeter. Evaluate the magnification of the first lens
In a Carnot cycle, the isothermal expansion of an ideal gas takes place at 400K, determine the work performed by the gas during the cycle
A solid sphere is released from height h from the top of an incline making an angle ? with the horizontal. Calculate the speed of the sphere when it reaches the bottom of the incline in the case that it rolls without slipping
the frequency of a microwave signal is 9.76 ghz. what is its wavelength in
An object is accelerated by a force. If the force is increased by a factor of 3 and the mass is increased by a factor of 4, by what factor will the acceleration change
Rays of the Sun are seen to make a 35.6 angle to the vertical beneath the water. At what angle above the horizon is the Sun
A 2.85 kg object is held in place on an inclined plane that makes an angle of 40 degrees with the horizontal. Calculate the initial acceleration of the system
While standing atop a building 50.7 m tall, you spot a friend standing on a street corner. Using a protractor and a dangling plumb bob, How far away from the foot of the building is your friend
Using a theodolite, with a laser rangefinder, a researcher at point A locates a pair of rare birds nesting at point B, For observation from point C, determine the direction angles and distance to the nest at B
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