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A small block with mass 0.0450kg slides in a vertical circle of radius 0.600m on the inside of a circular track. How much work was done on the block by friction during the motion of the block from poi
Draw two diagrams for the situation where a moving train (with initial speed v0) collides elastically with a target train that is not intially moving, Show that the final velocity of each train will
A shot-putter accelerates a 7.3kg shot from rest to 17m/s, If this motion takes 1.3s , what average power was developed
An oscilloscope shows a steady sinusoidal signal of 5 Volt peak to peak, which spans 5 cm in vertical direction on the screen. What will be observed on the oscilloscope screen
A 62kg hiker starts at an elevation of 1500m and climbs to the top of a 3500m peak, What is the minimum work required of the hiker
A cyclist intends to cycle up a hill whose vertical height is 170m. Assuming the mass of bicycle plus cyclist is 75kg , calculate how much work must be done against gravity
A 1400kg sports car accelerates from rest to 90m/s in 26.9s . How much work is done on the car by the engine, What is the average power delivered by the engine
The electron's magnetic moment is known as the "Bohr Magnetron" and has a theoretical value of ?B?eh4?m, where "h" is Planck's constant (h=6.63×10?34 J?s), Calculate the magnetic moment value
As light with a frequency of 4.286 x 10^14 Hz passes from air into a diamond, its speed v is 0.413 time in air is the same as the speed in vacuum which c= 3.0 x10^8, Calculate the value of wavelengh
Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 363 km above the earth's surface, Find the orbital speed for satellite A and satellite B
When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 5.30 m/s at 68.5° below the horizontal
A velodrome track is banked so that a bicycle traveling at 69.9 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 54.0 m
X-rays are used for analyzing molecular structure. What is the frequency (in Hz) of X-rays that have a wavelength of ? = 13.3 nm
A projectile is fired at v0 = 394.0 m/s at an angle of θ = 64.2o with respect to the horizontal, How far will the projectile travel in the horizontal direction, R
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 60° C. What is the temperature coefficient of resistivity
For a particle of mass m and charge q moving in a circular path in a magnetic field B, Find angular momentum of a particle about the center of the circle
A cylindrical aluminum pipe of length 1.43 m has an inner radius of 2.00 10-3 m and an outer radius of 3.00 10-3 m. What is the resistance of this unit
The starter motor of a car engine draws an electric current of 42.0 A from the battery. The copper wire to the motor is 6.00 mm in diameter and 1.71 m long, What is the current density in the wire
A child throws a stone horizontally from the top of a 15 m cliff with a speed of 10 m/s. If the stone weighs 2 N, find its kinetic energy and speed
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. The athlete is able to rotate the ball at the rate of 7.69 rev/s, Which rate of rotation gives the greater speed fo
A power line, running above the ground at the top of 8.0 m high poles, carries a current of 90 A. What is the magnitude of the magnetic field produced by this wire at the ground
A piece of Nichrome wire has a radius of 5.50 10-4 m. It is used in a laboratory to make a heater that uses 3.00 102 W of power, estimate the necessary length of wire
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him, What is the force of friction between the losing player's feet and the grass
An 93-g arrow is fired from a bow whose string exerts an average force of 120N on the arrow over a distance of 77cm, What is the speed of the arrow as it leaves the bow
a 1.5-kg mass attached to an ideal massless spring of spring constant of 20N/M oscillates on a horizontal, determine the total energy of the oscillating system