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An astronomical telescope for hobbyists has an angular magnification of -150. The eyepiece has a focal length of 4.90 mm. Determine the focal length of the objective. About how long is the telescope?
A series RCL circuit has a resonant frequency of 750 kHz, what is the value of the inductance?
The summit of a mountain 2450 m above a baseball camp is measured on a map to be 4 m horizontally from the base camp in a direction 32.4 west of the north. Illustrate what are the components of the displacement vector from the camp to the summit
What is the pressure at the bottom of a swimming pool which is 12ft deep and contains fresh water.
A gas is compressed from 655 cm3 to 171 cm3 at a constant pressure of 397 kPa. What is the change in thermal energy of the gas during this process
115 g of glass beads, originally at a temperature of 75.0 oC, are added to 85.0 g of ethyl alcohol which is at a temperature of -50.0 oC. find the temperature of the mixture when thermal equilibrium is reached
An equation of state for a certain material is found to be pV2 – aTV = bT, where a and b are constants. In terms of p, V, T, find (i) the coefficient of thermal expansion, and (ii) the isothermal compressibility.
A 12 g bullet travelling at 420 m/s is fired into the middle of an unlatched 32.0 kg door. The door is hinged on one end, is 1.20m wide and has I = 1/3 Md^2. What is the angular speed of the door just after the bullet is embedded in it
an airplane with a wingspan of 100m flies parallel to the earth's surface at a point where the downward component of the earth's magnetic field is 0.500 x 10^-4 T. what is the reading of the voltmeter
Four point charges are at the corners of a square of side a as shown in the figure below. Determine the magnitude and direction of the resultant electric force on q, with ke, q, and a left in symbolic form. (B = 1q and C = 5q. Let the +x-axis be poin..
The transformer supplying power to an artist's light sculpture provides 9600-V AC when supplied by 120-V AC. how many turns are there in its secondary coil
a transformer has N^1 =350 turns and N^2 =2000 turns. what voltage is developed across the secondary coil?
A certain camera has f-numbers that range from 1 to 20. If the focal length of the lens is 51 mm, what is the range of aperture diameters for the camera
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