Physics question and answers for August 24, 2023
- Q Two loudspeakers are located 2.53 m apart on an outdoor stage. Alistener is 21.4 m from one and 22.2 m from the other. During thesound check, a signal generator drives...
- Q The average distance separating earth and the moon is 384,000 kg(center to center). What is the Net gravitational force exerted bythe earth and the moon on a 2.75x104 kg spaceshiplocated...
- Q Two shuffleboard disks of equal mass, one orange and the otheryellow, are involved in an elastic, glancing collision. The yellowdisk is initially at rest and is struck by the orange...
- Q A cube 23 cm on each side contains 3.7 g of helium at 20∘C. 1000J of heat energy are transferred to this gas.A) What is the final pressure if the...
- Q Short response: Mostastronomical telescopes make use of spherical mirrors for theirobjectives.What are someadvantages for using these mirrors over a similar lens?What issues may stillplague the image formation by these mirrors?
- Q A water pistol aimed horizontally projects a stream of waterwith an initial speed of 6.30 m/s. (a) How far does the water dropin moving 1.15 m horizontally? (b) How far...
- Q For an object of given mass pushed against a vertical surface,and given a coefficient of static friction, calculate thehorizontal force necessary to prevent vertical motion
- Q Starting from rest, a 36.7-gram steel ball sinks into a vat ofcorn syrup. The thick syrup exerts a viscous drag force that isproportional to the ball\'s velocity:Drag= -Cvwhere C =...
- Q A 2.9 kg block is projected at 5.4 m/s up a plane that is inclinedat 40∘ with the horizontalaHow far up along the plane does the block go if the...
- Q (8%) Problem 3: A 0.275-kg aluminum bowl holding 0.65 kg of soupat 25.0°C is placed in a freezer.What is the final temperature, indegrees Celsius, if 377 kJ of energy is...
- Q I need to figure out what questions could be asked from thesescenarios.- A snowboarder comes off of a ramp at an angle of theta above thehorizontal, with a speed of...
- Q Please provide a 250 word explanation AND DESCRIPTION OFA REAL WORLD APPLICATION of one of the followingtopics:-ideal gases or the ideal gas law-the gas constant or the Boltzmann constant-the root...
- Q A hollow, plastic sphere is held below the surface of afreshwater lake by a cord anchored to the bottom of the lake. Thesphere has a volume of 0.650 m3 and...
- Q Write a step by step description of the process used to deriveGauss' Law from Coulomb's Law; a proof.
- Q what is the Drake equation? (write the equation and explain itsfactors) Research the current values of the Drake equation factorsand then calculate the number of communicative civilizations basedon your research....
- Q Avagadro's number of carbon atoms have a mass of 12.0 g. Twoidentical graphite spheres each have a mass of m = 4.21 g.If we could transfer one electron from each...
- Q A 200 g block attached to a spring with spring constant 2.1 N/moscillates horizontally on a frictionless table. Its velocity is 20cm/s when x0 = -4.6 cm .A. What is...
- Q Describe two current strategies for solving the problem ofintermittency for non-dispatchable renewables.
- Q Imagine shooting various colors of light at different kinds ofmetals. Depending on the work function of each metal, the lightwill or will not have enough energy to knock of an...
- Q A monatomic ideal gas expands from 2.00 m3 to 2.95m3 at a constant pressure of 2.80 ✕105 Pa. Find the following.(a) Find the work done on the gas. J(b) Find...
- Q short answer questions：7. Ball BounceExplain the relationship between the work done on a ball andthe resulting transformation of energy. Identify each type ofenergy as the ball is released from a...
- Q short answer questions 3：Velocity and AccelerationDescribe the method used to calculate an object's velocity andacceleration. Briefly state the relationship between velocity andacceleration.
- Q In a diagnostic x-ray procedure, 4.85×1010 photonsare absorbed by tissue with a mass of 0.575 kg . The x-raywavelength is 2.00×10−2 nm .A) What is the total energy absorbed by...
- Q Styrofoam has a density of 32kg/m^3. What is the maximum massthat can hang without sinking from a 70-cm diameter Styrofoamsphere in water? Assume the volume of the mass is negligiblecompared...
- Q A laser beam with vacuum wavelength 582 nm is incident from aironto a block of Lucite as shown in the figure below. The line ofsight of the photograph is perpendicular...
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