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When blue light of wavelength 440 nm falls on a single slit, the first dark bands on either side of center are separated by 49.0 degrees. Determine the width of the slit
If linear momentum is conserved when there is no external force applied, how is angular momentum conserved
A skier of mass 80 kg starts from rest and slides down a frictionless slope of length 35 m that is inclined at an angle of 30 degrees with the horizontal. Calculate the work done by gravity on the s
In the rainy season, the amazon flows fast and runs deep. In one location, the river is 23m deep and moves at a speed of 4.0m/s toward the east. what is the potential (magnitude and sign) at the sur
An AC generator supplies an rms voltage of 240 V at 60.0 Hz. It is connected in series with a 0.450 H inductor, a 3.90 ?F capacitor and a 316 ? resistor, What is the rms current through the resistor
A man lifts a 20.0-kg bucket of concrete from the ground up to the top of a 20.0-m tall building. How much work was done by the man in lifting the bucket
A square coil, enclosing an area with sides 3.4 cm long, is wrapped with 2,224 turns of wire. What average voltage is induced in the coil
The output from a one curie Co60 source is 1.25 R/hr at one meter. What is the radiation intensity at three meters from a 4 Curie source
A convex mirror has a focal length of -30.0 cm. A 15.0-cm-tall object is located 30.0 cm in front of this mirror. determine the location and size of the image
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10?2cm , mounted coaxially within a cylindrical anode with a radius of 0.5580cm, Find its speed vfinal when it strikes
A parallel-plate capacitor has circular plates of 9.27 cm radius and 1.79 mm separation. Calculate the capacitance in picofarads (pF)
A person 25 centimeters in front of a concave makeup mirror sees an upright image magnified by a factor of two. Draw a sketch to locate the image of the person
Calculate the velocity of a 50.0g steel ball shot from a slingshot with a 120N/m spring constant when pulled back 35cm and released
A 4.7 kg block moving at 4.7 m/s makes a head-on elastic collision with a stationary block of mass 3.9 kg. Find the kinetic energy of the system after the collision
Force F = (-9.0 N) i + (5.0 N) j acts on a particle with position vector r = (-5.0 m) j + (1.0 m) k. What is the torque on the particle about the origin
A car has its 0.45m long radio antenna oriented vertically upward and is traveling at highway speeds of 70 mph. Calculate the range of induced emf on the antenna
Two polarizers are oriented at 54? to one another. Unpolarized light falls on them. What fraction of the light is intensity is transmitted
A ball is thrown upward from the top of a building at an angle of 60.0° to the horizontal, What is the horizontal distance (in m) covered by ball before hitting the ground
The outer edge of the grooved area of a long-playing record is at a radial distance 36 cm from the center; the inner edge is at a radial distance of 15 cm. What is the radial speed of the needle
A toroid having a 7.2 cm square cross section and inside radius of 22.8 cm has 170 turns of wire and carries a current of 1.8 A. What is the magnetic flux through the cross section
Blue light (λ = 450 nm) shines on a diffraction grating that has 4000 lines/inch. Calculate the angle of the fourth-order image.
A 120-V motor has mechanical power output of 3.00 hp. It is 88.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the current in the motor
A high-energy pulsed laser emits a 1.2-ns-longpulse of average power 1.3×1011W. Determine the rms value of the electric field
A 6kg block, starting at rest, is pulled up a ramp by a motor coiling a rope such that the tension is 60N. How much energy is supplied by the motor to move the block up the ramp