When a car goes around a banked circular curve at the proper speed speed for the banking angle, what force cause it to follow the circular path?
A) the normal force from the road
B) the friction force from the road
C) gravity
D) No force causes the car to do this because the car is traveling at constant speed and therefore has no acceleration.
A
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Doubling the weight suspended vertically from a coil spring will result in a change in the displacement of the spring's lower end by what factor?
a. 4.0 c. 2.0 b. 3.0 d. 0.5
The coefficient of linear expansion of ordinary glass is three times that of Pyrex glass. An ordinary glass rod and a Pyrex glass rod of equal lengths at room temperature are dropped into boiling water. The change in length of the ordinary glass rod will be 3 times the change in length of the Pyrex glass rod
a. True b. False Indicate whether the statement is true or false
A wheel having a moment of inertia of 5.00 kg ? m2 starts from rest and accelerates under a constant torque of 3.00 N ? m for 8.00 s. What is the wheel's rotational kinetic energy at the end of 8.00 s?
A) 57.6 J B) 64.0 J C) 78.8 J D) 122 J
The inductance of a tuning circuit of an AM radio is 4.00 mH. Find the capacitance of the circuit required for reception at 1 200 kHz
a. 2.10 pF b. 4.40 pF c. 21.2 pF d. 43.4 pF e. 27.6 pF