Using the set-up seen here, Ms. Garcia places a golf ball between the globe and the flashlight. Turning off the lights in the ro
om, she shines a flashlight from behind the golf ball. The students observe the shadow of the golf ball falling on the globe. What is this setup trying to model?
A) a solar eclipse
B) the solar system
C) the idea of gravity
D) the surface of the moon
A) a solar eclipse
B) the solar system
C) the idea of gravity
D) the surface of the moon
1 answer:
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Answer:
a) 75.5 degree relative to the North in north-west direction
b) 309.84 km/h
Explanation:
a)If the pilot wants to fly due west while there's wind of 80km/h due south. The north-component of the airplane velocity relative to the air must be equal to the wind speed to the south, 80km/h in order to counter balance it
So the pilot should head to the West-North direction at an angle of
relative to the North-bound.
b) As the North component of the airplane velocity cancel out the wind south-bound speed. The speed of the plane over the ground would be the West component of the airplane velocity, which is
Answer:
F = .
Explanation:
Gravitational force between two objects of masses kept at a distance r is given by the formula
F =
Here , = 2m
=
Thus , F =
F = .