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A cue ball having mass of 0.16 kg, rolling at 4.0 m/s, hits a stationary eight-ball of alike mass. When the cue ball travels 45° above its original path, and the eight-ball at 45° below, the
The force consists of a magnitude 3.4 N and is directed at a counterclockwise angle of 124° from the positive direction of the x axis. Determine how much work is done by the force on the coin t
In the Olympiad of 708 B.C. a few athletes competing in the standing long jump used handheld weights termed halters to lengthen their jumps.
A nichrome wire having a resistance of 11.6 is joined across the terminals of a 3.0 V flashlight battery. Determine how much current is in the wire?
What are some ways to explain whether alpha particles are responsible for the audible ‘clicks’ on the Geiger counter?
When the solar cells use has an efficiency of 10%, then what area of land is required to generate an output of 1000 MW? Suppose that the mean isolation is 500 W/m^2.
A mass-less string is wrapped about a solid disk of mass m1 and tied to a block of mass m2. The disk is free to rotate on a frictionless horizontal axle.
All along the axis of a uniformly charged disk, at a point 0.6 m from the center of the disk, the potential is 55.5 V and the magnitude of electric field is 62.2 V/m; at a distance of 1.5 m, the pot
Find out the gravitational force which you apply on another person 1.40 m away. Suppose that you and the other person are having point masses of 66.0 kg each.
A physical pendulum is made up of employing a 2.82 kg object having a moment of inertia of 24.4 kg-m2 around its center of mass. The rotation (or suspension) point is 848.6 cm from the center of mass.
Find out the period of a spring pendulum when the harness of its spring is 3.09 N/m and the mass of the oscillating body is around 439.4 g?
A person's leg measures 38 cm between the knee and hip, having average leg diameter (avoiding bone and other poorly conducting tissue) of 13 cm. The potential difference of 0.80 V causes a current
An astronaut has landed on a bizarre new planet and conducts an experiment to find out the acceleration of gravity. She employs a pendulum which consists of a period of oscillation of 1.45 s on the
The leaf of a corn plant consists of a resistance of 2.3 MΩ measured between two electrodes placed 20 cm apart all along the leaf. The leaf consists of a width of 2.1 cm and is 0.20 mm thick.
The electric catfish can produce a significant potential difference by using stacks of special cells termed electrocytes. Each electrocyte builds a potential difference of 110 mV.
Find out the work a hiker should do on a 12.3 kg back-pack to carry it up a hill of height h = 13.5 m. The hill is not an even slope however instead an irregular curve.
When a laser beam moves from air to the crown glass at an angle of 37 degrees from the interface surface perpendicular, then determine the angle of the beam after entering the glass?
A mass 5.0 kg of a block is pulled across a horizontal surface at a constant speed by a force 14 N directed at 35 degrees from the horizontal. Determine the coefficient of kinetic friction among the
Maxwell’s equation in a vacuum wants that the electric field be what multiple of the magnetic field? These equations in a vacuum as well need a relationship which determines that the product E
A rectangular loop of wire which measures 4m by 6m and which carries a current of 9 amps. The flux in the loop goes from 14 to 0 as the current goes from 9 to 0 in 5 seconds. Determine the resultan
The small gravitational effects of Earth and Mars, which only influence the satellite at the very starting and end of the trip, might be avoided. Compute the time it takes the satellite to travel fr
What speed should a vehicle maintain to drive on a vertical circular wall of radius 20 m if the coefficient of static friction among the vehicle tires and the wall is 0.4?
How can you compute the electric flux of the open hemispherical surface due to the electric field, E = E0. The z points vertically, the y points horizontally and the x points out of the page. Then f
Determine the coefficient of dq/dt, the coefficient of q? For which of these is they had a value of zero would always outcome in oscillatory motion?
Each and every worker is capable to deliver 173 W of power, and the pulley system is 75.0% efficient (so that 25.0% of the mechanical energy is lost due to the friction in pulley). Avoiding the mass