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A 150g steel ball and a 300g steel ball each hang from 1.0-m-long strings. At rest, the balls hang side by side, barely touching. The 150g ball is pulled to the left until the angle between its string and vertical is 40degree. The 300g ball is pulled to a 40degree angle on the right. The balls are released so as to collide at the very bottom of their swings.
To what angle does each ball rebound?
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of -0.7692 N when separated by 50 cm, center-to-center, What were the initial charges on the spheres
Two coins, carrying identical charges, lie 1.5 m apart on a table and a coin experiences a force of 2.0 N, How large is the charge on each
A sledge loaded with bricks has a total mass of 17.8 kg and is pulled at constant speed by the rope inclined at 20.4° above the horizontal. The sledge moves a distance of 20.7 m on a horizontal surface. The coefficient of kinetic friction between ..
The largest fusion bomb ever detonated (called the Tsar Bomba) was tested by the Soviet Union in 1961. If this bomb used the deuterium-deuterium fusion reaction, how many kilograms of deuterium were required
A consumer upset with the latest trend of postal rate increases has decided to try to send letters by balloon even though they may not reach their intended destination
The width of the contact of each wire with your skin is 1.10 cm and the thickness of the conducting layer of your skin is 0.023 mm, calculate the resistivity of your skin
A 5.0 kg textbook is raised a distance of 30 cm as a student prepares to leave for school. How much work did the student do on the textbook
How much kinetic energy will an electron gain (in joules) if it accelerates through a potential difference of 1.30×104V
How much energy is lost through the walls of the hot water heater in one week? (Assume thinner surface of the heater is 90 C and the outer surface is 27 C.)
A blue puck with a mass of 4.30×10?2kg , sliding with a speed of 0.190m/s on a frictionless, horizontal air table, Find the direction of the velocity of the red puck after the collision
Small spheres of diameter 1.03 mm fall through 20°C water with a terminal speed of 1.00 cm/s. Calculate the density of the spheres
A rocket blasts off vertically from rest on the launch pad with an upward acceleration of 2.30. At 10.0 after blastoff, the engines suddenly fail, which means that force they produce instantly stops.
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