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An opaque container is 15 cm deep. It contains only a single coin. When looking into the container at a viewing angle of 50o relative to the vertical side of the container, you see nothing on the bottom. When the container is full with water, you see the coin (from the same viewing angle) on the bottom of, and just beyond, the side of the container. How far is the coin from the side of the container?
Two resistors (connected in series with each other) and a 10 Vbattery are connected in a loop. The voltage drop across the firstresistor is 2 V. What is the voltage drop across the second resistor?
A 3-kg box attached to a horizontal spring (k = 1,200 N/m) undergoes simple harmonic motion. How far was the inital displacement from the spring's natural length
A conducting sphere of radius 0.26 m has a potential of 240 V (with V = 0 at infinity). What is the charge density on its surface
What is the temperature at point B?What is the work done BY the gas in the transition A to B? What is the efficiency of a Carnot cycle running between the lowest and highest temperature of the cycle above
A solenoid is to have an inductance of 0.257 mH, a cross-sectional area of 5.56 10-4 m2, and a length of 39.6 cm. How many turns per unit length should it have
A ball is thrown upward from a platform 4.6 m high with a speed of 16 m/s, What is the magnitude of its velocity when it hits the ground
You lower a weight of metal in a beaker filled with water standing on a scale. When metal weight hangs above the water weighs 179.6 grams.
a person traels by car from one city to another with different constant speeds between pairs of cities. she drives for
The pilot of a small plane flies at 80 m/s on a day with no wind. If he first flies 60 degrees north of east for 6 minutes and then flies north for 4 minutes. How far from his starting point does he end up
You are driving a car which is heading 25 m/s towards a brick wall. You sound a horn which emits at a frequency of 500 Hz when at rest. What is the beat frequency that you hear
If she is served 200 of coffee at 84 in a well-insulated container, how much ice at 0 should she add to obtain a final temperature of 31.
A system performs 357 J of work on its surroundings while losing 133 J of internal energy. Determine the heat transferred to the system during this process
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