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A person who weighs 605 N is riding on a 98-N mountain bike. Assume that the whole weight of the rider and bike is supported uniformly by the two tires. When the gauge pressure in each tire is 89000
A commercially available solar cell module puts out 3Volts and 0.1 amp, and measures 5cm by 8cm. Determine how large an array is essential to give an output of 40 W?
Transform each of the given quadratic functions into form f(x)=a(x-h)^2+k and find out extreme point, x-intercepts, and sketch graph: a) f(x)= -x^2+10x-15 b) f(x)= 2x^2+2x+1.
Find out the smallest number of whole blocks (comprising the one on the ground) which can be stacked so that their weight makes a gauge pressure of at least two atmospheres on the ground below the f
The density of gold is 19 300 kg/m^3, and the density of quartz is 2660 kg/m^3. Determine the mass of the gold in the rock.
(i) What is the maximum weight W which can be supported in this way without pulling out the nail? (ii) Determine the magnitude of the force which the hinge applies on the pole?
When the solar cells have an efficiency of 10%, then what area of land is required to produce an output of 1000 MW? Suppose that the mean isolation is 500 W/m^2.
Two similar strings on different cellos are tuned to the 440Hz A note. The peg holding one of the strings slips, therefore its tension is reduced by 1.2%. Determine the beat frequency heard if the s
State the hydrostatic force against one side of the plate as an integral and calculate it. (Provide your answer correct to the near whole number in lbs.) Base is pointing up, parallel to the surface
The insurance policy pays 80% of first $20,000 of the certain patient's medical expenses, 60% of next $40,000, and 40% of $40,000 after that. If patient's total medical bill is $92,000, determine h
A space-craft of 90-tonne (1 t = 1000kg ) moving in the positive x-direction at 0.48 m/s docks with a 75-tonne craft moving in the negative x-direction at 0.80 m/s. i) Determine the velocity of the
A ball of 130g moving at 0.35 m/s in the positive x-direction is subjected to a 0.15 N force in the negative y-direction for 2.5 seconds. i) Determine the magnitude of the momentum change of the bal
A baseball of 145-g approach the bat at 31.5 m/s. The batter imparts a 12.0kg x m/s- impulse in the opposite direction. Determine the new speed of the ball?
Verify that any ray coming in parallel to the principal axis of the parabolic surface will reflect towards the focal point of parabola. Begin with the general form of a parabola centered on the y-ax
The piece of wire which is 16 meters long is cut into two pieces so that one piece is three fifths as long as other. Determine the length of each piece.
An air-filled parallel-plate capacitor consists of a capacitance of 1.5 pF. The separation of the plates is twice and wax is inserted between them. The new capacitance is 3.7 pF. Determine the diele
Find out (i) the capacitance of the device, (ii) the free charge q (in C) on the inner shell and (iii) the charge q (in C) induced all along the surface of the inner shell.
The rods carry the similar current in the similar direction. The length of each rod is 0.90 m, whereas the mass of each is 0.084 kg. One rod is held in place above the ground, and the other floats u
Height of the isosceles triangle is 10 cm and base is 8 centimeters. Use heron's formula to determine length of each of two congruent sides to nearest tenth of centimeter.
A wire of 1.65 m length is formed into a single-turn, square loop in which there is a current of 12 A. The loop is positioned in a magnetic field of 0.04 T. Determine the maximum torque which the lo
A capacitor of 1.11 x 10-3 µF consists of an initial charge of 0.100 C. If a resistor is joined across the capacitor plates, there is an initial current via the resistor of 1.04 A. Determine t
When a wire is carrying a positive current, I, directly up out of this page, in what direction around the wire will the magnetic field point? (Clockwise or counter-clockwise)?
One end of the light elastic string of natural length l, passing through the small smooth ring of mass m, is attached to the point o on ceiling of room. Illustrate that extension of string in equili
A 0.34F capacitor charged to 3.3V will initially discharge with the leakage current of 0.40mA Determine how long will it take for the capacitor voltage to drop to 1.0?
A capacitor made up of two metal plates that are 160 cm long and 4 cm wide. They are separated by a distance of 0.2 mm, which is filled with oil which consists of a dielectric constant (K) of 5.0 De