A car goes around a circular curve on a horizontal road at constant speed. What is the direction of the friction force exerted on the car by the road?
A) tangent to the curve in the forward direction
B) tangent to the curve opposite to the direction of the car's motion
C) perpendicular to the curve outward
D) perpendicular to the curve inward
E) There is no friction on the car because its speed is constant.
D
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Typically, if the mass of a white dwarf increases, the white dwarf shrinks and then explodes if the mass exceeds 1.4 solar masses.
Answer the following statement true (T) or false (F)
Eventually, all low mass stars will become white, then black, dwarfs
Indicate whether the statement is true or false
Thrust a magnet into a coil of wire and you'll induce
A) voltage. B) current. C) both of these D) none of the above
A wheel rotating about a fixed axis with a constant angular acceleration of 2.0 rad/s2 starts from rest at t = 0 . The wheel has a diameter of 20 cm. What is the magnitude of the total linear acceleration of a point on the outer edge of the wheel at t = 0.60 s?
a. 0.25 m/s2 b. 0.50 m/s2 c. 0.14 m/s2 d. 0.34 m/s2 e. 0.20 m/s2