What is the de Broglie wavelength of a ball of mass 200 g moving at 30 m/s? (h = 6.626 × 10-34 J ? s)

A) 1.1 × 10-34 m
B) 2.2 × 10-34 m
C) 4.5 × 10-28 m
D) 6.7 × 10-27 m


A

Physics & Space Science

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If the net force on a cart is tripled, the cart's acceleration

A) is one third. B) is two thirds. C) is three times as much. D) is more than three times as much.

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Which of the following statements best reflects our current knowledge about the term flife in the equation

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A series circuit contains an 80-?F capacitor, a 0.020-H inductor, and a switch. The resistance of the circuit is negligible. Initially, the switch is open, the capacitor voltage is 50 V, and the current in the inductor is zero

At time t = 0 s, the switch is closed. When the current in the circuit is 1.5 A, what is the charge on the capacitor? A) 2000 µC B) 2500 µC C) 3000 µC D) 3500 µC E) 4000 µC

Physics & Space Science