Stellar parallax is used to measure distances of celestial bodies within the solar system

a. True
b. False
Indicate whether the statement is true or false


False

Physics & Space Science

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If an all-electric car has kinetic energy, then it also must have

A) impulse. B) momentum. C) acceleration. D) force. E) none of the above

Physics & Space Science

Double-Slit Interference: In a double-slit experiment, the slit separation is 2.0 mm, and two wavelengths, 750 nm and 900 nm, illuminate the slits. A screen is placed 2.0 m from the slits. At what distance from the central maximum on the screen will a bright fringe from one pattern first coincide with a bright fringe from the other?

A. 1.5 mm B. 3.0 mm C. 4.5 mm D. 6.0 mm

Physics & Space Science

Variables of a certain type are called Cepheid variables because the first one discovered was in the _____________ Cepheus

Fill in the blank(s) with correct word

Physics & Space Science

A car on a roller coaster starts at zero speed at an elevation above the ground of 26 m. It coasts down a slope, and then climbs a hill. The top of the hill is at an elevation of 16 m. What is the speed of the car at the top of the hill?

Neglect any frictional effects. A) 14 m/s B) 18 m/s C) 10 m/s D) 9.0 m/s E) 6.0 m/s

Physics & Space Science