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A nail is fired into a block of wood at a velocity of 200 m/s. If the deceleration is 2 million m/s2 how far does the nail travel before it comes to a stop?
A u-tube contains some mercury of relative density 13.6 kerosine of relative density 0.8 is poured into one arm until the height of mercury in that arm is reduced by 1.5cm. Calculate the height of kerosine? Water is then poured into the other arm until the mercury level in both arms is the same. Calculate the height of water?
A solid rectangular block measures 0.1m by 0.08m by 0.06m and floats freely in a liquid of density 13546kg/m3. If the depth of the liquid is 0.045m up to the block's largest side. Find the density of the block?
ZL = 200 Ω and it is desired that Zi = 50 Ω The quarter wave transformer should have a characteristic impedance of
A. 100 Ω
B. 40 Ω
C. 10000 Ω
D. 4 Ω
Refractive index of glass is 1.5. Find the wavelength of a beam of light with a frequency of 1014 Hz in glass. Assume velocity of light is 3 x 108 m/sec in vacuum.
The function f(x - vot) represent which of the following?
A. A stationary wave
B. A wave motion in forward direction
C. A wave motion in reverse direction
D. None of the above
A broadside array consisting of 200 cm wavelength with 10 half-wave dipole spacing 10 cm. And if each array element feeding with 1 amp. current and operating at same frequency then find the half power beamwidth
why charged particles with very low incident energies only elastically scatter
A carretela pulled by a horse carries a 50.0 kg load that includes a copy of modules distributed to remote barangays. The carretela has a mass of 2.50×10^3 kg. If the carretela moves accelerates at a rate of 5.00 m/s^2, how much pull was exerted by the carabao?
Charge 1 (+Q) is at the point (0,a). Charge 2 is at the point (0,-2a).
(a) Find the electric force (magnitude and direction) felt by Charge 1 due to Charge 2.
(b) Find the electric field (magnitude and direction) at the origin created by both charges (in other words, find the net electric field).
(c) Is there a point on the x-axis where the total electric field is zero? If so, where? If not, explain briefly.
(d) If a small negative charge, -q, of mass m were placed at the origin, determine its initial acceleration (magnitude and direction).
