The magnitude of a vector is 3.1 units and its x component is 0 units. What are the possible y components and respective angles with the x-axis of the vector?
What will be an ideal response?
3.1 at 90.° or - 3.1 at - 90.°
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Rilles on the lunar surface were formed by ________.
A. ancient lava flows B. the flow of ancient rivers C. ancient volcano chains D. the impact of small asteroids
A heavy truck and a small car rolling down a hill at the same speed are forced to stop in the same amount of time. Compared with the force that stops the car, the force needed to stop the truck is
A) greater. B) smaller. C) the same.
When traveling north from the United States into Canada, you'll see the North Star (Polaris) getting
A) brighter. B) dimmer. C) higher in the sky. D) lower in the sky.
A 6.0-J pulse of light from a laser has what momentum?
a. Light does not have momentum because it doesn't have mass. b. 3.0 × 10^9 kg•m/s c. 6.7 × 10^–9 kg•m/s d. 2.0 × 10^–8 kg•m/s