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An explosion breaks an object into two pieces, one of which has 2.40 times the mass of the other. If 7300 Joule were released in the explosion, obtain how much kinetic energy did each piece acquire?
heavier piece J
lighter piece
J
Suppose a charge +Q is placed on Earth, and another charge +Q isplaced on the Moon. Find the value of Q needed to "balance" the gravitationattraction between the Earth and the Moon.
Your roommate is an aspiring novelist. Because you are taking physics your roommate asks your opinion on a matter of physics. How many drops per second are keeping the annoyed protagonist awake
A bottle rocket is launched at an angle of 30 degrees from the ground with a speed of 200m/s. What is the range of the rocket if it lands on level ground
A proton accelerates from rest in a uniform electric field of 625 N/C. At one later moment, its speed is 1.25E+06 m/s. Over what time interval does the proton reach this speed
Calculate the conduction rate of heat H=deltaQ/deltaT through an A=2.0 m^2 glass window of the thickness of the glass is 4 mm and the temperature difference between the inside and the outside is 20 degree celsisus
A slide projector has a converging lens whose focal length is117.00 mm. (a) How far (in meters) fromthe lens must the screen be located if a slide is placed 120.01 mmfrom the lens? If the slide measures 24.0 mm (height) x 36.0 mm(width), what are the..
Two blocks, masses m1 and m2 are connected by an ideal string passing over an ideal pulley. Find the acceleration of each block
To determine the location of her center of mass, a physics student lies on a lightweight plank supported by two scales 2.50m apart, find the distance from the student's head to her center of mass
The electric field of an electromagnetic wave in a vaccum is Ey = (25 V/m) sin ((3.78 x 10^8) x - wt), What is the wave's magnetic field amplitude
A portion of a roller coaster track is described byh=0.94x-0.010x2, where h and x are height and horizontalposition in meters. Is the equilibrium stable or unstable
A magnifying glass has a focal length of 8cm. How close to an object do you need to place the magnifying glass, What type of image is this and what is its magnification
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.10 cm thick. The bullet strikes board with a speed of 455m/s and emerges with a speed of 279m/s. (To simplify, suppose that the bullet accelerates only while the fr..
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