Answer:
Explanation:
The centripetal force acting on the car must be equal to mv²/R, where m is the mass of the car, v its speed and R the radius of the curve. Since the only force acting on the car that is in the direction of the center of the circle is the frictional force, we have by the Newton's Second Law:
But we know that:
And the normal force is given by the sum of the forces in the vertical direction:
Finally, we have:
So, the minimum value for the coefficient of friction is 0.27.
Answer:
Explanation:
Energy of radiation in eV = 1237.5/280 = 4.42 eV.
Work function = 2.65 eV.
Maximum kinetic energy = 4.42 - 2.65 = 1.77 eV.
(C) have the same heat capacity
Who was the first president?
It could be changed by asking
“Who was the first president and what was there scientific accomplishment?”
The right answer for the question that is being asked and shown above is that: "A. neutron; B. red giants; C. black holes; E. main sequence." The Chandra X-ray observatory is BEST equipped to search for neutron, red giants, black holes, <span>main sequence.</span>
