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How many coulombs of positive charge are there in 4.00 kg of plutonium, given its atomic mass is 244 and that each plutonium atom has 94 protons?
A car goes round a flat curve at a speed of 32 ms-1. If the radius of the curve is 200 m, find the minimum value for the coefficient of friction so that the car can go around the curve without skidding.
A particle in the solar system is under the combined influence of the Sun's gravitational attraction and the radiation force due to the Sun's rays, Calculate this critical radius
During a solar eclipse, the moon, earth and sun all lie on thesame line with the moon between earth and the sun, what force isexerted by the sun on the moon
An automobile tire has a radius of 0.335 m, and its center moves forward with a linear speed of v = 16.1 m/s. Determine the angular speed of the wheel
The pilot of an airplane traveling 180 km/h wants to drop supplies to flood victims isolated on a patch of land 150 m below. The supplies should be dropped explain how many seconds before the plane is directly overhead?
Determine what is the final temperature of a mixture of two cups boiling water (100oC) and i cup cold water 10 degrees C
A parallel-plate capacitor consists of two large circular sheets of metal separated by 1.53 cm. The electric field energy density among plates is 4.41 J/m3 while the capacitor holds 0.127 J of potential energy. What is the radius of the circular plat..
In a certain automobile engine, 17% of the total energy released in burning gasoline ends up as mechanical work. What is the engine's mechanical power output if its heat output is 78 kW
An ice skater rotating at 53.0 rad/s with her arms extended has a moment of inertia of 2.25 kg m2. compute her angular speed
In an engine, a piston oscillates with simple harmonic motion so that its position varies according to the expression, x = 3.00 cos 5t + ? 5, Find the period and amplitude of the motion
A 1,576-kg car is moving down a road with a slope (grade) of 11% while speeding up at a rate of 3.6 m/s^2. What is the direction and magnitude of the frictional force
The particle with energy E moves in positive direction toward the potential step Vo > E. Determine the probability to find the particle on the distance x from the potential step.
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