While you are standing in the aisle of a bus, the driver suddenly makes a left turn. You lurch to the right due to

A) an unbalanced force.
B) your tendency to keep moving forward.
C) an equilibrium challenge.


Answer: B

Physics & Space Science

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Two resistors can be either connected to a battery in series or in parallel. In which case, if either, is the equivalent resistance the smallest?

a) When the two resistors are wired in parallel, the equivalent resistance is less than if they are wired in series. b) When the two resistors are wired in series, the equivalent resistance is less than if they are wired in parallel. c) Both series and parallel wiring will result in the same equivalent resistance. d) It is not possible to know which method of wiring will result in the lowest equivalent resistance without knowing the values of the two resistances.

Physics & Space Science

Rotation and magnetism both play key roles in protostar formation

Indicate whether the statement is true or false

Physics & Space Science

Protostars can be observed in

A) the Crab Nebula. B) the Andromeda Galaxy. C) the Orion Nebula. D) our Solar System. E) the Helix Nebula.

Physics & Space Science

If a plane is flying at a speed so that the apex half-angle of its shockwave is 30°, what is its speed if the speed of sound is 320 m/s?

a. 960 m/s b. 640 m/s c. 320 m/s d. 160 m/s e. Choose this answer if a shock wave cannot form in this situation.

Physics & Space Science