A 70-kg high jumper leaves the ground with a vertical velocity of 6.0 m/s. How high can he jump?
1.84 m
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The constellations of the zodiac fall along:
A) the ecliptic. B) the celestial equator. C) lines of longitude. D) lines of latitude.
On what basis did Herschel think he had found a comet?
A) The object appeared as a small greenish disk in his telescope. B) It appeared to be moving slightly night by night. C) No star appeared in that position on his charts. D) It was not a point of light, like a star should appear. E) All of the above are correct.
Redshift surveys are designed to find which galaxies are oldest and youngest
Indicate whether the statement is true or false
An electron moving along the +x-axis enters a magnetic field. If the electron experiences a magnetic deflection in the -y direction, what is the direction of the magnetic field in this region?
A) along the +z-axis B) along the -z-axis C) along the -x-axis D) along the +y-axis E) along the -y-axis