The above image of the Sun was taken using a filtergram
a. True
b. False
A
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As shown in the diagram, you've just thrown a baseball toward Al at 100 km/hr, while he is moving away from you to the right at 90 km/hr. According to Al, what is the baseball doing?
A) traveling to the right at 10 km/hr B) traveling to the right at 100 km/hr C) staying stationary D) traveling to the right at 190 km/hr
The fact that the sky is dark at night shows that the observable universe cannot extend forever
Indicate whether the statement is true or false
A 100-N force has a horizontal component of 80 N and a vertical component of 60 N. The force is applied to a cart on a level frictionless floor. The cart starts from rest and moves 2.0 m horizontally along the floor due to this force
What is the cart's final kinetic energy? A) 160 J B) zero C) 120 J D) 200 J
The ____________________ shows that sunspots are associated with magnetic activity
Fill in the blank(s) with correct word