Classify the following as element, compound, or mixture, and justify your classifications: table salt, stainless steel, table sugar, aluminum, ice
A) mixture; element; compound; element; element
B) compound; mixture; compound element; compound
C) mixture; compound; mixture; element; compound
D) compound; element; compound; element; compound
Answer: B
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Conservation of Momentum: A very elastic rubber ball is dropped from a certain height and hits the floor with a downward speed v. Since it is so elastic, the ball bounces back with the same speed v going upward. Which of the following statements about the bounce are correct? (There could be more than one correct choice.)
A. The ball had the same momentum just before and just after the bounce. B. The magnitude of the ball's momentum was the same just before and just after the bounce. C. The ball's momentum was conserved during the bounce. D. None of these statements are correct.
Faraday's Law: A flux of 4.0 × 10-5 T ? m2 is maintained through a coil of area 7.5 cm2 for 0.50 s. What emf is induced in this coil during this time by this flux?
A. 8.0 × 10-5 V B. 4.0 × 10-5 V C. 3.0 × 10-5 V D. 2.0 × 10-5 V E. No emf is induced in this coil.
What particle carries the strong force?
A.) Graviton. B.) W boson. C.) Z boson. D.) Gluon. E.) Photon.
The locking mechanism for the seatbelt of a car makes use of the fact that the apparent vertical direction (i.e. the direction in which a plumb bob hangs) changes with the car's deceleration
In a certain collision, the deceleration of a car is 5.00 g. What angle does the apparent vertical make with the true vertical?