Why is there vacuum above the level of mercury in a mercury barometer?

Explain using examples, what is simple harmonic motion and why it is an important area of study in physics.

When does your body conduct current more readily?

2. -/1 pointsserpse10 2.7.p.017.mi. an object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x direction when its x coordinate is 2.97 cm. if its x coordinate 2.85 s later is -5.00 cm, what is its acceleration? cm/s2 need ? read it master it