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Questions in physics

[Homework Help] Where does the shadow of the shuttle in space form?

[Homework Help] A curved section of roadway is in the shape of a circular arc with a 410-meter radius. The section is horizontal and not banked. Given that the coefficient of friction between the tires and the roadway is 0.40, what is the maximum safe driving speed for this unbanked, curved section of the roadway?

[Homework Help] A particle travels in a circle of radius 82 cm with a centripetal acceleration of 4.7 m/s\(^2\). How long does the particle take to complete one revolution?

[Homework Help] A traveling wave has a wavelength of 0.50 m and a speed of 20 m/s. Find the wave frequency.

[Homework Help] Why does it take less time for small rocks to wear away than it does for large rocks to wear away?

[Homework Help] You drop a rock down a well that is 5.4 m deep. How long does it take for the rock to hit the bottom of the well?

[Homework Help] Explain how a geyser works.

[Homework Help] Why does the current remain the same in a series combination of resistors while the potential difference (p.d.) remains different across each resistor?

[Homework Help] What is the length of a pendulum whose period is 2.0 seconds?

[Homework Help] 13. A man standing on a bus remains still when the bus is at rest. When the bus moves forward and then slows down, the man continues moving forward at the original speed. This is an example of the effect of: A. gravity. B. inertia. C. velocity. D. weight.