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A body of mass 10 kg is suspended by a light inextensible string from the roof of a train. Calculate the tension in the string and its inclination
Teh maximum power of a particular horse is 1 hp. With what speed can this horse pull a sled on level ground if the weight of the sled with its load.
A diffraction grating produces a first-order bright fringe that is 0.0934 m away from the central bright fringe on a flat screen.
A photon having 27 keV scatters from a free electron at rest. What is the maximum energy that the electron can obtain?
White light strikes a diffraction grating (540 lines/mm) at normal incidence. What is the longest wavelength that forms a third-order maximum?
A diffraction grating has 2200 lines/cm. What is the angle between the first-order maxima for red light ( = 690 nm) and blue light ( = 410 nm)
When a grating is used with light that has a wavelength of 621 nm, a third-order maximum is formed at an angle of 18.0°
What does the acronym VSAT stand for? What diameter antenna would you expect to be used at the retail outlets? (Give a range, in meters.)
Assume that the antenna emits energy with cylindrical wave fronts. (The actual antenna pattern is much more complicated).
Put these prefixes in order of increasing size. Put 1 for the smallest, 2 for the next largest, etc.
A single slit has a width of 1.5 10-6 m and is used to form a diffraction pattern. Find the angle that locates the second dark fringe
Assume first that the cold reservoir for this plant is a river whose flow rate is 100 m^3 /s. By how much will the temperature of the river increase?
It is placed it in the path of the laser beam with the slit vertical and positioned so that the laser spot on the screen is as bright as possible.
Assume the working fluid is an ideal gas with constant specific heats and has properties as follows: CV = 0.600 kJ/(kg-K)
Suppose a single slit like the one in the figure above is 6.00 cm wide and in front of a microwave source operating at 7.5 GHz.
If the crate starts from rest and by constant acceleration attains a speed of 15 ft/s after rising 6 ft.
Determine an expression for the instantaneous power in the circuit p = iv, "AS THE SUM OF 2 COSINES"
A 2.40 * 10^2 kg piano is being lifted at a steady speed from ground level straight up to an apartment 10.0 m above the ground.
A 120-V rms voltage at 1000 Hz is applied to a resistor and an inductor in series. If the impedance of this circuit is 110 ohms.
Make a list of the different types of condensers used in conventional power stations (there should be five).
Show that the complex refractive index of a conducting medium can be expressed as n = ?0(1+i)/2 pd and n = ?0(1-i)/2pd where d is the skin depth.
"7x50" binoculars magnify angles by a factor of 7.0, and their objective lenses have an aperture of 50 mm diameter.
A gasoline engine fuel burns at a temperature of 500 degrees C. its radiator cools to 70 degrees C. What is the engine's Carnot efficiency?
Engine 1 does twice the work of engine 2. Is it correct to conclude that engine 1 produces twice as much power as engine 2 explain?
Conduct a systematic literature review to critically examine a mental disorder that occurs in adolescence. Examine the existing body of scientific evidence