Physics question and answers for October 04, 2023
- Q A disk-shaped parallel plate capacitor is made with a radius of2 cm and a plate separation distance of 2/Ï€ millimeters. Thedielectric is in two layers, each of thickness 1/Ï€ mm....
- Q Falling Bodies. In the simplest model of the motion of a fallingbody, the velocity increases in proportion to the increase in thetime that the body has been falling. If the...
- Q A particle slides back and forth on a frictionless track whoseheight as a function of horizontal position x is given by y=ax2,where a = 0.81 m−1 .If the particle's maximum...
- Q The magnetic field 41.0 cm away from a long, straight wirecarrying current 4.00 A is 1950 nT.(a) At what distance is it 195 nT?(b) At one instant, the two conductors...
- Q Two in-phase loudspeakers, which emit sound in all directions,are sitting side by side. One of them is moved sideways by 3.0 m,then forward by 7.0 m. Afterward, constructive interference isobserved...
- Q The man fires an 80 g arrow so that it is moving at 80 m/s whenit hits and embeds in a 8.0 kg block resting on ice.How far will the...
- Q To see how two traveling waves of the same frequency create astanding wave.Consider a traveling wave described by the formulay1(x,t)=Asin(kx−ωt).This function might represent the lateral displacement of astring, a local...
- Q The position of a 0.30-kg object attached to a spring isdescribed byx = (0.22 m) cos(0.3?t)(a) Find the amplitude of the motion.m(b) Find the spring constant.N/m(c) Find the position of...
- Q An electron experiences the greatest force as it travels3.0×106 m/s in a magnetic field when it is movingnorthward. The force is vertically upward and of magnitude8.0×10−13 N .What is the...
- Q A blue car with mass mc = 497 kg is moving east witha speed of vc = 16 m/s and collides with a purple truckwith mass mt = 1336 kg...
- Q A man stands on the roof of a building of height 13.4 m andthrows a rock with a velocity of magnitude 27.5 m/s at an angle of32.8 ∘ above the...
- Q Steam at 100°C is added to ice at 0°C.(a) Find the amount of ice melted and the final temperature whenthe mass of steam is 13 g and the mass of...
- Q 1) Imagine an object moving horizontally with uniform (that is,constant) velocity. Sketch the position time and velocity-timegraphs for this motion.2) Imagine tossing an object straight up into the air, thencatching...
- Q 1)Discuss how energy conservation applies to aswinging pendulum. (PLEASE EXPLAIN YOUR ANSWERS, WITHOUT ANYEXPLANATION YOU WILL NOT RECEIVE FULL CREDIT) Where is thepotential energy the greatest? The least? Where is...
- Q Your cousin’s voice sound different over the telephone than itdoes in person. This is because telephones    do not transmit frequencies over about3000 Hz. Since 3000 Hz is well above the...
- Q A horizontal pipe of diameter 0.768 m has a smooth constrictionto a section of diameter 0.4608 m. The density of oil flowing inthe pipe is 821 kg/m3 . If the...
- Q 1. When determining the amount of work needed to pump somethingwhat would cause the final work to be negative?  2. What is the purpose behind integration in determining fluidforce on vertical...
- Q Sarah leaves her house and walks 11 miles to the west and then 6miles at an angle 30 degrees west of north. How far and in whatdirection does Sarah need...
- Q Starting from rest, a 4.20-kg block slides 2.30 m down a rough30.0° incline. The coefficient of kinetic friction between theblock and the incline is μk =0.436.(a) Determine the work done...
- Q Suppose you want to determine the electric field in a certainregion of space. You have a small object of known charge and aninstrument that measures the magnitude and direction of...
- Q 1- what is the relation between the terminal voltage drop andthe resistor voltage drops?2- how are the absolute potentials related to the voltagedrop?3- how are the resistor voltage drops related...
- Q A -8.50 nC point charge and a +17.0nC point charge are 17.5 cmapart on the x-axis.What is the electric potential at the point on the x-axis wherethe electric field is...
- Q You have a parallel-plate 6.33 × 10-6 F capacitor that ischarged to 0.00861 C. While the capacitor is isolated, you changethe plate separation so that the capacitance becomes 2.41 ×...
- Q Three capacitors, all initially without any dielectricsinserted, of C1 = 4 micro-farads, C2 = 10 micro-farads, and C3 = 10micro-farads, are connected purely in series to a battery and thetotal...
- Q A playground is on the flat roof of a city school, 6.5 m abovethe street below (see figure). The vertical wall of the building ish = 7.80 m high, forming...
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