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An explosion breaks an object into two pieces, one of which has 1.5 times the mass of the other. If 7900 J were released in the explosion, how much kinetic energy did each piece acquire?
Heavy_____
Light______
A bucket is filled with a combination of water (density 1000 kg/m3) and oil (density 700 kg/m3). what is the pressure at the interface between the oil and the water
q1. a 3.60-rm m-long 430 rm kg steel beam extends horizontally from the point where it has been bolted to the framework
The friction force in the sled is 1000N and the angle between the two ropes is 20 degrees. Explain how hard must each player pull to drag the coach at a steady 2.0 m/s?
A simple model considers a continent as a block (density ? 2800 kg/m3), estimate the height of the continent above the surrounding mantle rock
The sun's intensity at the distance of the earth is 1370 W/m2. 30% of this energy is reflected by water and clouds; 70% is absorbed. What would be the earth's average temperature (in ?C) if the earth had no atmosphere
a teacher standing in a doorway 1.0 m wide blows a whistle with a frequency of 1000 hz to summon children from the playground. which boy may not hear the whistle
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. evaluate the electric field between the plates
The man hears the sound of the splash 2.8 s after he releases the rock from rest. The speed of sound in air (at the ambient temperature) is 336 m/s. How far below the top of the well is the surface of the water
Two charges of +0.250 C are placed at the points (1.25 mm, 0) and (-1.25 mm, 0). A third charge of -0.450 C is placed at the origin. a. What is the electric field at the point (0, 2.20 mm)? b. At what point on the y-axis will E be zero? Show graph..
A 24-V battery is connected in series with a resistor and an inductor, Find the energy stored in the inductor one time constant after the switch is closed
Mr. Physics drops a rock down a 250-meter deep well. Upon impact with the bottom of the well a short burst of sound is produced with a frequency of 250 Hz. How long after he drops the rock does he hear it hit bottom of the well.
q1. an outfielder throws a 0.150 kg baseball at a speed of 50.0 ms and an initial angle of 30.0deg. what is the kinetic
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