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Question:
The smallest insects that a bat can detect are approximately the size of one wavelength of the sound the bat makes. What is the minimum frequency of sound waves required for the bat to detect an insect that is 0.57 cm long? (Assume the speed of sound is 340 m/s.)
Two boxes with different masses M1 =0.7 kilogram and M2 =2.8 kilogram are tied together on a friction less ramp surface which makes an angle θ = 27 degree with the horizontal. Find the tension in the rope connecting the two boxes
A line of positive charge is formed into a semicircle of radius R = 80.0 cm, Calculate the total force on a charge of 4.00 µC placed at the center of curvature
After a completely inelastic collision between two objects of equal mass, each having initial speed v, the two move off together with speed v/3. What was the angle between their initial directions
A car goes around a curve on a road that is banked at an angle of 31.0 degree. Estimate what is the radius of the curve
A beam of light is incident on a plane mirror at an angle of 41o relative to the normal. What is the angle between the reflected ray and the surface of the mirror
The average nascar car weights 3,400lbs. at a recent nascar racethe cars went flying around the banked curces at daytonainternational raceway. What is the centripetal force on the car keeping it goingaround the curve at a speed of 200 mph
A solid wood door 1.00 meter wide and 2.00 meter high is hinged along one side and has a total mass 53.0 kilogram. Evaluate the final angular speed of the door
At 100 °C the rms speed of nitrogen molecules is 576 m/s. Estimate the rate of molecular collisions (collisions/s) on this wall
Photons with wavelength 670 nm are capable of producing photoelectrons from a particular substance. Determine the substance's work function and cutoff wavelength
Your team of test engineers is to release the parking brake so an 848.0-kg car will roll down a very long 6.1 percent grade in preparation for a crash test at the bottom of the incline. What is the terminal speed for the car rolling down this grade
A golf ball of mass 0.045 kg is hit off the tee at a speed of 36m/s . The golf club was in contact with the ball for 3.90×10?3s. Find the average force exerted on the ball by the golf club
Two small stereo speakers are 2.8 m apart and act as a double-slit interference experiment by sound waves. If the opposite wall of the room is 7.5 m away and the sound frequency is 1.4 kHz, what is the distance among the two interference maxima neare..
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