Human reaction times are worsened by alcohol. How much further (in feet) would a drunk driver's car travel before he hits the brakes than a sober driver's car?

Assume that both are initially traveling at 50.0 mi/h and their cars have the same acceleration while slowing down, and that the sober driver takes 0.33 s to hit the brakes in a crisis, while the drunk driver takes 1.0 s to do so. (5280 ft = 1 mi)


49 ft

Physics & Space Science

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Answer the following statement(s) true (T) or false (F)

1. The electric field inside a conductor must be zero in all possible circumstances. 2. In static equilibrium, any excess charge on a conductor is uniformly spread on its surface. 3. A closed metal can (in static equilibrium) will perfectly shield a point in its interior from the static field of any external charged particle(s). 4. If the electric field at any point inside a conductor is nonzero, the metal is not in static equilibrium.

Physics & Space Science

A "parallel ray" is a ray parallel to the

A) mirror radius B) object axis C) chief ray D) optic axis

Physics & Space Science

Alpha particles, each having a charge of +2e and a mass of 6.64 × 10-27 kg, are accelerated in a uniform 0.80-T magnetic field to a final orbit radius of 0.30 m. The field is perpendicular to the velocity of the particles

How long does it take an alpha particle to make one complete circle in the final orbit? (e = 1.60 × 10-19 C) A) 0.15 ?s B) 0.25 ?s C) 0.33 ?s D) 0.40 ?s E) 0.49 ?s

Physics & Space Science

Collovium

What will be an ideal response?

Physics & Space Science