Consider an RLC series circuit. The impedance of the circuit increases if XC increases
A) true only if XL is greater than or equal to XC
B) true only if XL is less than or equal to XC
C) always true
D) never true
B
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Equilibrium: A uniform 1200-N piece of medical apparatus that is 3.5 m long is suspended horizontally by two vertical wires at its ends. A small but dense 550-N weight is placed on the apparatus 2.0 m from one end, as shown in the figure. What are the tensions, A and B, in the two wires?
A. A = 880 N, B = 880 N B. A = 840 N, B = 910 N C. A = 9000 N, B = 8200 N D. A = 910 N, B = 840 N E. A = 8200 N, B = 9000 N
A small car and a large SUV are at a stoplight. The car has a mass equal to half that of the SUV, and the SUV can produce a maximum accelerating force equal to twice that of the car
When the light turns green, both drivers push their accelerators to the floor at the same time. Which vehicle pulls ahead of the other vehicle after a few seconds? A) The car pulls ahead. B) The SUV pulls ahead. C) It is a tie.
The substances that are formed by a chemical reaction are called the
a. products. b. reactants. c. chemicals. d. precipitates.
Which clock measures a coordinate time between the synchronization and comparison events?
A. Clock A B. Clock B C. Both D. Neither