A wave travels an average distance of 6 m in 0.5 s. What is the wave's average velocity?
A) less than 0.2 m/s
B) 1 m/s
C) 3 m/s
D) 6 m/s
E) more than 6 m/s
Answer: E
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Constant Acceleration Kinematics: A soccer ball is released from rest at the top of a grassy incline. After 6.4 seconds the ball has rolled 91 m with constant acceleration, and 1.0 s later it reaches the bottom of the incline.(a) What was the ball's acceleration?(b) How long was the incline?
What will be an ideal response?
What are the two types of lava?
What will be an ideal response?
A small airplane with a wing span of 12 m flies horizontally and due north at a speed of 60 m/s in a region where the magnetic field of the earth is 60 mT directed 60° below the horizontal. What is the magnitude of the induced emf between the ends of the wing?
a. 50 mV b. 31 mV c. 37 mV d. 44 mV e. 22 mV
What are the main constituents of the jovian planets?
A) rocky minerals and water, as on Earth B) hydrogen and helium C) ammonia and methane D) ammonia and water E) nitrogen and methane