Physics question and answers for September 10, 2023
- Q A flat uniform circular disk (radius = 2.90 m, mass = 1.00 ✕102 kg) is initially stationary. The disk is free torotate in the horizontal plane about a frictionless axisperpendicular...
- Q Problem 10: Water is drawn from a well using a leaky bucket.Assume the following: • The well is 23 ft deep and requires 23 ftof rope to pull the bucket...
- Q How are the arrangement of and movement of theparticles that make up a gas different than the arrangement andmovement of the particles that make up solid to liquids?
- Q A 0.5530-kg ice cube at -12.40°C is placed inside a chamber ofsteam at 365.0°C. Later, you notice that the ice cube hascompletely melted into a puddle of water. If the...
- Q A.) Find the work done by anideal engine which extracts 8900.0 J of heat from its hot reseviorwhile operating between 550.0 K and 370.0 K.B.) The work from the engine...
- Q A projectile is shot from the edge of a cliff at an initialspeed of 5.0 m/s at angle 30o with the horizontal. After 12seconds, the projectile hits the ground below...
- Q A long straight wire lies on a horizontal table and carries anever-increasing current toward the north. Two coils of wire lieflat on the table, on on either side of the...
- Q Please show the work for how to get the answer. Thank you inadvance.Assume that all of the mass of a bicycle wheel is concentrated atits rim. Such a wheel of...
- Q How does the OLED produce light? (illustrate answer with energylevel diagram)
- Q A turntable of 0.8 m in diameter is spinning about its axis withan initial angular velocity of 4 rad/s. If it experiences aconstant angular acceleration of 3 rad/s 2 ,...
- Q A capacitor filled by dielectric slab (k=4.5) is connected to a12.0V battery and charged up. The capacitor is then disconnectedfrom the battery and the slab is removed.a) Find the amount...
- Q A rail gun uses electromagnetic forces to accelerate aprojectile to very high velocities. The basic mechanism ofacceleration is relatively simple and can be illustrated in thefollowing example. A metal rod...
- Q Isenergy conserved in the heating effect of an electriccurrent experiment?what are the major sources of error in this experiment ?
- Q Consider two point charges located on the x axis: one charge,q1= -19.0 nC , is located at x1 = -1.700 m; the second charge, q2q= 40.0 nC , is at...
- Q To get to a concert in time, a harpsichordist has to drive 122miles in 1.93 hours. (a) If he drove at an average speed of 52.0mi/h in a due west...
- Q Radioactive iodine is given to patients to reduce thyroid growthor activity. The iodine I53131, has ahalf-life of 8.04 days. Why would the radiation in the human bodydecrease at a faster...
- Q A thin-walled hollow cylinder with mass m1and radius R1 rolls without slipping on theinner wall of a larger thin-walled hollow cylinder with massm2 and radius R2 >>R1. Both cylinders' axes...
- Q A nail contains trillions of electrons. Given that electronsrepel from each other, why do they not fly out of the nail?
- Q 2. A 10 kg ball moving to the right with a speed of 6.0 m/scollides with a 20 kg ball moving to the left at a speed of 4.0m/s.(a) If...
- Q Nuclear fission reactors consist of three main components: thefuel rods, control rods and the moderator. Draw a diagram oftypical reactor and give a brief description of each of the maincomponents....
- Q A plane of area 0.25m2and surface charge density s=4.5 nC/m2lies in the x = 0.00 m plane, and a second plane of surface chargedensity s= -4.50 nC/m2 lies in the...
- Q A block of mass m = 2.6kg is attached to a single spring ofspring constant k = 4.4Nmand allowed to oscillate on a horizontal,frictionless surface while restricted to move in...
- Q does accleration increase down an inclined plane
- Q Estimatethe total entropy change when 100.g of liquid water,initially at 298 K and 0.50 atm,is first heated to boiling at 373 Kand 1.00atm, and the steamcollected at 1.00 atmsubsequently heatedand...
- Q Describe, in detail, what would happen if you fell intoa black hole, from both your perspective, and the perspective ofsomeone who is watching you fall in. You should include specificeffects,...
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