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An object is placed 57 cm from a concave mirror of radius 15 cm.
a) Discover the location of the image. (Enter a negative number if the image appears behind the mirror)
b) What is the magnification of the mirror? (Enter a negative number if the image is inverted)
Suppose a pion is moving at a speed of 0.986c, and an observer who is stationary in a laboratory measures the pion's lifetime to be2.7 × 10-8 s. What is the lifetime according to a hypothetical person who is riding along with the pion
Solar Energy Reaches the earth at the rate of about 1400 watts per sqaure meter of surface perpendicular to the direction of the sun. By how much does the mass of the sun decrease
A well-insulated container of negligible heat capacity contains 150g of ice at 0 degrees. If 20g of steam is injected into the container, what is the final equilibrium temperature of the system
The moons of mars phobos and deimos are very close to the planet compared to earths moon their orbital radii are 9378 and 23459. what is the ratio od the orbital speed v of phobos to deimos
A lead bullet having a velocity magnitude of 360M/Scrashes into a steel wall. Half of the Bullet's kinetic Energy goesinto heating the Bullet. The Bullet is deformed by the crash ButDoes not melt. What is its temperature rise?
A microwave oven is powered by an electron tube called a magnetron, which generates electromagnetic waves of frequency 3.46 GHz. determine the speed of the microwaves
In the figure, two particles, each with mass m = 0.79 kg,are fastened to each other, and to a rotation axis at O,by two thin rods, each with length d = 6.0 cm and massM = 1.2 kg. The combination rotates around the rotation axis with angular speed ..
A rocket-powered hockey puck has a thrust of 1.00 N and a total mass of 2.10 kg. How far does the puck land from the base of the table
Scientists want to place a 3800.0 kg satellite in orbit around Mars. What speed should the satellite have to be in a perfectly circular orbit
Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.069 V. How much work is done by the electric force
The drawing shows four insulated wires overlapping one another,forming a square with 0.050-m sides. All four wires are much longerthan the sides of the square. The net magnetic field at the centerof the square is 72 μT directed into the drawing. Calc..
An circuit consists of a 50Ω resistor in series with a 60.0 Hz source. A voltmeteracross the resistor reads 34.0 V. What is the rms current in this circuit?
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