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A telescope consists of a mirror with radius of curvature 4.4 m and an eyepiece. If an astronomer would like the telescope to have a magnification of 186, what focal length eyepiece should he use?
Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with
You swing a 3.16-kg bucket of water in a vertical circle of radius 0.860 m. At the top of the circle the speed of the bucket is 3.20 m/s; at the bottom of the circle its speed is 7.00 m/s. Find the
The grating is illuminated with a beam of white light containing the 400 nm to 700 nm wavelength range. The angular width of the gap between the first order spectrum and the second order spectrum is
For two slits, the third-order maximum for 400nm light occurs in the same spot as the second-order maximum for which other visible wavelength?
A 0.335 m string is clamped at both ends. If the lowest standing wave frequency in the string is 326 Hz, what is the wave speed?
Oxygen gas having a volume of 900 cm3 at 45.0°C and 1.01 multiplied by 105 Pa expands until its volume is 1650 cm3 and its pressure is 1.06 multiplied by 105 Pa. (a) Find the number of moles of
A string, 0.260 m long, vibrating in the m = 6 harmonic, excites an open pipe, 0.880 m long, into its third resonant frequency. The common frequency of the string and the pipe is closest to:
The manufacturer wishes to produce a desktop version of the machine. This requires reducing the size of the drum to a length of 30 cm and a diameter of 8.0 cm. The electric field at the drum surface
The electric field just above the surface of the charged drum of a photocopying machine has a magnitude E of 2.3 105 N/C. The drum has a length of 41 cm and a diameter of 13 cm. What is the total c
determine the following. (a) the salmon's acceleration m/s2 upward (b) the magnitude of the force F during this interval N
Give the signs for the velocity and the acceleration of the elevator after the button has been pressed but before the elevator has stopped.
An airboat with mass 4.36 x 102 kg, including the passenger, has an engine that produces a net horizontal force of 8.20 102 N, after accounting for forces of resistance. (a) Find the acceleration of
An astronaut's pack weighs 12.1N when she is on earth but only 3.60N when she is at the surface of an asteroid. What is the mass of the pack on the asteroid?
An astronaut's pack weighs 12.1Nwhen she is on earth but only 3.60 N when she is at the surface of an asteroid. 1. What is the acceleration due to gravity on this asteroid?
During 9.75 seconds a motorcyclist changes his velocity from v1x = -30.3 m/s and v1y = 13.1 m/s to v2x =-26.1 m/s and v2y = 28.1 m/s. Find the components of the motorcycle's average acceleration dur
What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of 11.9m/s^2?
In the Michelson-Morley experiment, the arms of the interferometer were (effectively) 11m each, and the wavelength of the light was 5900A.
At what separation is the electrostatic force between a +10.4 point charge and a +28.2 point charge equal in magnitude to 1.73 ?
What is the acceleration of the other car as measured from your car's reference frame? Give an explanation to your answers.
For a soap solution with index of refraction of 1.09, find the minimum wall thickness that will enhance the reflection of light of wavelength 715 nm in air.
Now you can use your ruler to measure that the central bright circle is 20.2 cm in diameter. What is the diameter of the needle?