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if a commiercial solar cell with a maximum output of 2 amps at 05v costs 30 what will be the cost of a photovoltaic
a right triangular plate with height 4 ft and a base of 6 ft is submerged vertically in water so that the top is 2 ft
a 90-tonne 1 t 1000kg spacecraft moving in the positive x-direction at 048 ms docks with a 75-tonne craft moving in
a 130g ball moving at 035 ms in the positive x-direction is subject to a 015 n force in the negative y-direction for 25
prove that any ray coming in parallel to the principal axis of a parabolic surface will reflect towards the focal point
an air-filled parallel-plate capacitor has a capacitance of 15 pf the separation of the plates is doubled and wax is
the space between two concentric conducting spherical shells of radii b 240 cm and a 120 cm is filled with a
two rigid rods are oriented parallel to each other and to the ground the rods carry the same current in the same
a 165 m length of wire is formed into a single-turn square loop in which there is a current of 12 a the loop is placed
a laser beam 6320 nm is incident on two slits 0280 mm apart how far apart are the bright interference fringes on a
a 111 10-3 microf capacitor has an initial charge of 0100 c when a resistor is connected across the capacitor plates
capacitors wont hold a charge indefinitely as time goes on charge gradually migrates from the positive to the negative
a capacitor constructed of two metal plates which are 160 cm long and 4 cm wide they are separated by a distance fo 02
a golfer driving a golf ball off the tee gives the ball a velocity of 31 ms the mass of the ball is 0045 kg and the
a piece of nichrome wire has a radius of 700 10-4 m it is used in a laboratory to make a heater that dissipates 300 102
a crate of mass m1 on a frictionless inclined plane is attached to another crate of mass m2 by a massless rope the rope
if a saturn v rocket with an apollo spacecraft attached has a combined mass of 24 multiplied by 105 kg and reached a
during the spin cycle of your clothes washer the tub rotates at a steady angular velocity of 331 rads find the angular
rachel is on the roof of a building h meters above ground she throws a heavy ball into the air with a speed v at an
tom is driving at 45mph toward a grade crossing and he is at 800ft from the garde crossing there is no gate at this
a 1200 kg airplane is flying in a straight line at 80 ms 13 km above the ground what is the magnitude of its angular
a 50kg object is sitting on top of a pistion that is supported by a cushion of air in a cylinder the radius of the
your portable phones 12v battery is dead its a holiday and all the stores are closed you do have two 15v batteries from
the primary coil of a transformer draws a 40 a rms current when plugged into a 120v outlet the secondary voltage is 40v
the image produced by a concave mirror is located 36 cm in front of the mirror the focal length of the mirror is 22 cm