What is the amplitude (in meters) of a wave whose displacement is given by y = 50. sin(0.20x + 120t) cm?
A) 0.50 m
B) 1.0 m
C) 6 m
D) 0.20 m
E) 10 m
A
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The ____________________ of the galaxy contains population I stars, open clusters, and gas clouds
Fill in the blank(s) with correct word
An astronaut on a strange new planet having no atmosphere finds that she can jump up to a maximum height of 27 m when her initial upward speed is 6.0 m/s. What is the magnitude of the acceleration of freely falling objects on the planet?
What will be an ideal response?
Three particles, each of which has a mass of 80 g, are positioned at the vertices of an equilateral triangle with sides of length 60 cm. The particles are connected by rods of negligible mass. What is the moment of inertia of this rigid body about an axis that is parallel to one side of the triangle and passes through the respective midpoints of the other two sides?
a. 0.018 kg×m2 b. 0.020 kg×m2 c. 0.016 kg×m2 d. 0.022 kg×m2 e. 0.032 kg×m2
The average size of a white dwarf is about the same size as the Earth
a. True b. False Indicate whether the statement is true or false