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A 4.00-kg particle moves along the x axis. Its position varies with time according to x = 3.0t + 2.0t^2 where x is in meters and t is in seconds. Find
a) the kinetic energy at any time t,
b) the acceleration of the particle and the force acting on the particle,
c) the power being delivered to the particle at any time t,
d) the work done on the particle in the interval t = 0 to t = 2.00 s.
An object has a kinetic energy of 257J and a momentum of magnitude 21.8 kg·m/s. Find out the speed and the mass of the object.
A point source of light is submerged 2.4 m below the surface of a lake and emits rays in all directions. What is the maximum radius that this circle could have
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, Find the mass of the gold in the rock
An old-style TV set places 20 kV across two plates of a parallel plate capacitor. What is the speed of the electron when it exits the hole in the plate
A 9000pF capacitor holds plus and minus charges of 1.35×10?7C . What is the voltage across the capacitor
Two small metallic spheres, each of mass m = 0.45 g, are suspended as pendulums by light strings from a common point, calculate the magnitude of the charge on each sphere
a candle is placed at a distance of 15 cm in front of a concave mirror of radius 40 cm. where is the image of the candle
A ball is thrown from the edge of a cliff that is 10.0 meters high. The ball is thrown at 10.0 m/s at an angle of 45 degrees above the horizontal. Find the total time of flight
An air-filled toroidal solenoid has a mean radius of 15.1cm and a cross-sectional area of 4.95cm2, find the least number of turns that the winding must have
Two 9.00 µC charged particles are located on the x axis. One is at x = 1.00 m, and the other is at x = -1.00 m, Determine the electric field on the y axis at y = 0.500 m
In beta decay, a neutron decays into a proton, an electron, and a neutrino, What is the maximum energy that the electron can have? The neutrino?
A potter's wheel having a radius 0.55m and a moment of inertia 12kg•m2 is rotating freely at 51 rev/min. The potter can stop the wheel in 7 s by pressing a wet rag against the rim and exerting a radially inward force of 67N. Find out the effectual co..
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