Q1 two crates of mass 57 and 164 are in contact and at, Ask an Expert

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Q1. Two crates, of mass = 57 and = 164, are in contact and at rest on a horizontal surface. A 650 force is exerted on the 57 crate. What is acceleration?

Q2. A 2.30- parallel plate capacitor has a plate area of 0.514. If the plate area is doubled, what is the new capacitance value?

Q3. At a temperature of 5800, hydrogen atoms in the solar atmosphere have typical random speeds of about 12. Assume that spectral-line broadening is simply the result of atoms moving toward us or away from us at this random speed, estimates thermal width (in nanometres) of the 656.3- solar line.

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