Physics question and answers for September 28, 2023
- Q the waveform of a flute is much simpler than that of anclarinet，why？
- Q The volume of a cylinder is V space equals space pi space rsquared space h, where r is the radius of the circular faces and his the height of the...
- Q Captain Science, unmasker of fuzzy thinkers andproponent of cosmic truth, drops a 35 kg bowling ball on a stiffspring from a height of 1.0 m and finds that the spring...
- Q A moving ball (ball #1) makes a perfectly elastic collision witha stationary ball (ball #2). After the collision it is observedthat the speed of ball #2 is five times that...
- Q You are standing 2.50m directly in front of one of the twoloudspeakers shown in the figure. They are 3.00m apart and both areplaying a 686Hz tone in phase.As you begin...
- Q A solid disk with a mass of 0.85 kg starts at the top of a 0.79m tall hill and rolls down without slipping. What is thetranslational speed of the disk...
- Q A block is placed on a plane inclined at 35 degreesrelative to the horizontal. If the bloc k slides down the planewith an acceleration of magnitude g/3, determine the coefficient...
- Q A2kg mass attached to a spring with k = 120 N / m is oscillating inan oil tub, which dampens oscillations. A) If the oil dampingconstant is b = 10kg...
- Q To a rough approximation, the Earth can be treated as a greybodysphere with uniform temperature, absorptance ? = 0.70 andemissivity ? = 0.61. The low absorptance is largely due toreflection...
- Q Analysis of waves in shallow water (depth much less thanwavelength) yields te following wave equation:where h is the water depth and gthe gravitational acceleration.Give an expression for the wave speed.
- Q What are Newton’s 3 laws of motion? With each response, providea common example/application for each from everyday life (15points)
- Q A 283 g air track glider moving at 0.69 m/s on a 2.4 m long airtrack collides elastically with a 467 g glider at rest in themiddle of the horizontal...
- Q A cylindrical metal can, 0.1 m high and 0.05 m in diameter,contains liquid helium at its normal boiling point of -452.074degrees Fahrenheit. At this temperature Helium's heat ofvaporization is 20.4...
- Q Obtain the equations that describe the motion of a body thrownvertically at a speed greater than the escape velocity. Discountair resistance.
- Q On a dark desert highway, a car leaves a gas station and headsstraight for 10 km, heading exactly northeast.(i.e., directed 45 degrees northward of due east). The car thenturns onto...
- Q A distant galaxy emits light that has a wavelength of 596.8 nm.On earth, the wavelength of this light is measured to be 601.9 nm.(a) Decide whether this galaxy is approaching...
- Q Aprofessional boxer of mass m1 hits a punching bag in the center ofm2 suspended from a cable. The collision between both bodies isperfectly inelastic. Therefore, this combined system is balancedthrough...
- Q Why is heat a path function and give an example?
- Q During the 2004 Olympic Games, ashot putter threw a shot put with a speed of 12.1 m/s at an angleof 43.7° above the horizontal. She released the shot put from...
- Q Due to tides mean sea level off of Newport Beach reaches aheight of 1.3 meters during hightide and 0.3 meters during low tide. Successive high tides occurevery 12 hours (43,200seconds)....
- Q answer all or do not answerSHOW ALL WORK FOR COMPUTATIONAL PROBLEMS OR NO CREDIT(write out the equation and solution)1. Determine the number of significant figures for thefollowing:A) 4778526B) 0.075C) 850D)...
- Q A bicycle starts from rest with a constant acceleration 1 m/s^2.After 5 seconds of having started its movement, the brake pin ofone of its handlebars, located 5 meters from the...
- Q If a satellite is in a sufficiently low orbit, it will encounterair drag from the earth's atmosphere. Since air drag does negativework (the force of air drag is directed opposite...
- Q Two 0.25 cm radius coins are separated by a 0.1 mm thick pieceof paper with dielectric constant kappa = 6.475. They form acapacitor. A 8 V battery is connected to...
- Q 10) Which of the following statements are correct?A) Turning up the flame under a pan of boiling water increasesthe water temperature so that it boils faster.B) Sweating is an important...
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