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Questions in physics

📝 Answered - An ambulance is traveling east at 51.6 m/s. Behind it, there is a car traveling in the same direction at 32.3 m/s. The ambulance driver hears his siren at a frequency of 615 Hz. - 32.3 m/s Car - 51.6 m/s Ambulance What is the wavelength of the sound of the ambulance’s siren if you are standing at the position of the car? The velocity of sound in air is 343 m/s. Answer in units of meters.

📝 Answered - A child sits two meters from the center of a merry-go-round. How far does she travel during one revolution?

📝 Answered - Determine the acceleration of a 34.0 kg block along a frictionless inclined plane at a 35° slope.

📝 Answered - You want to describe the harmonic motion of a swing. You find out that it takes 2 seconds for the swing to complete one cycle. What is the swing's period and frequency?

📝 Answered - You decide to add up all the work you did yesterday. If you accomplished 10,000 newton·meters of work yesterday, how much work did you do in units of joules?

📝 Answered - One light beam has wavelength [tex]\lambda_1[/tex] and frequency [tex]f_1[/tex]. Another light beam has wavelength [tex]\lambda_2[/tex] and frequency [tex]f_2[/tex]. Write a proportion that shows how the ratio of the wavelengths of these two light beams is related to the ratio of their frequencies.

📝 Answered - The mean distance from Saturn to the sun is 9 times greater than the mean distance from Earth to the sun. How long is a Saturn year?

📝 Answered - A hydrogen atom has one proton, two neutrons, and no electrons. Is this atom neutrally charged? Explain your answer.

📝 Answered - If a car can go from 0.0 to 60.0 mi/hr in 8.0 seconds, what would be its final speed after 5.0 seconds if its starting speed were 50.0 mi/hr?

📝 Answered - A wave with a large amplitude has a lot of: A. vibration B. speed C. energy