Physics question and answers for September 14, 2023
- Q If you double the length of a pendulum, how will its periodchange?(a) What is the length of a pendulum that has a period of 0.25s? (b) What is the period...
- Q Charged Spheres #1 Charged spheres are placed as follows:Namecharge (μC)x location (m)y location (m)A+7.00.00.0B-8.0-2.03.0Determine the electric field (x and y components) created bycharge A at the location (-2.0, 0.0).Determine the...
- Q ifyou look at your calculator display with polarizing sunglasses andthen tilt your head, what happens?
- Q An aluminum rod with a square cross section is 1.2 m long and5.0 mm on edge. (a) What is the resistance between its ends? (b)What must be the diameter of...
- Q 250 mL of water at 20.0 ∘C is placed in the freezer compartmentof a refrigerator with a coefficient of performance of 4.00. Howmuch heat energy is exhausted into the room...
- Q Given a 2.00 μF capacitor, a 5.25 μF capacitor, and a 2.50 Vbattery, find the charge on each capacitor if you connect them inthe following ways.(a) in series across the...
- Q Describe two methods of determining the whole volume of a woodenrod
- Q How do you relate the principle of Superposition to sound? Whydoes some people in a big room, hear quiet sound?
- Q An object has a mass in air of 0.0832 kg, apparent mass in waterof 0.0673 kg, and apparent mass in another liquid of 0.0718 kg.What is the specific gravity of...
- Q In the “old daysâ€, televisions were made from Cathode Ray Tubeswhereby a beam ofelectrons rapidly swept across the inside of the screen as a resultof strategic deflectionsfrom magnetic fields acting...
- Q Â Â \(\int_{0}^{\pi}e^xsinxdx\) with n=6 subdivisions1) Find the exact value of the integral2) Approximate the integral using the trapezoidal rule, midpointrule and simpson rule.3) Find the errors using each of these...
- Q A normal refrigeration cycle uses one coolant, so why does vaporcompression cycle of an ice rink you a primary coolant and asecondary coolant?
- Q A golfer stands 5m above the fairway and drives a golf ball withan initial velocity of v0=(0,20,49)m/s. The golferwishes to impartslice to the golf ball, which is modeled by an...
- Q A block with mass m1 = 8.7 kg is on an incline with an angle θ =38° with respect to the horizontal. For the first question there isno friction, but...
- Q A mass oscillates on a spring with a period T and an amplitude0.48 cm. The mass is at the equilibrium position x=0 at t=0, and ismoving in the positive direction.a.)...
- Q What is a 3 way switch? Why do they come in pairs? How does itwork?
- Q 1. - Let z equal the square root of −i. (a) Find Rez and Imz(real and imaginary parts of z). (b) Find real and imaginary partsfor the square root of...
- Q A 60.1-kg crate rests on a level floor at a shipping dock. Thecoefficients of static and kinetic friction are 0.515 and 0.406,respectively. What horizontal pushing force is required to (a)...
- Q A cart for hauling ore out of a gold mine has a mass of 423 kg,including its load. The cart runs along a straight stretch of trackthat is sloped 4.51°...
- Q . You read in the newspaper that rocks from Mars have been foundon Earth. Your friend says thatthe rocks were shot off Mars by the large volcanoes there. Youare skeptical...
- Q In the figure, a small block of mass m = 0.121 kg slides down africtionless surface from an initial height of h = 0.850 m and thensticks to a uniform...
- Q Two isolated, concentric, conducting spherical shells have radiiR1 = 0.470 m and R2 = 1.00 m, uniform charges q1 = +1.50 μC and q2= +2.00 μC, and negligible thicknesses. What...
- Q (a) Sketch the bond model and (b) the energy band modelillustrating a broken Si-Si bond for each model. Label Ec and Evfor the energy band model.
- Q PLEASE SHOW ALL STEPSand equations used.Two identical strings are fixed on both ends.The first string is vibrating in its fundamental mode and it isobserved that the other string begins to...
- Q Two in?nitely large sheets are shown in the ?gure. Sheet 1contains a charge density +?. Sheet 2 contains ??. Between the twosheets is an in?nitely large 0.25 mm thick conducting...
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