A spaceship accelerates from 0 m/s to 60 m/s north in 3 seconds. What is the acceleration of the spaceship?
1 answer:
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Answer:
B. get smaller
Explanation:
The parallax angle of a star measured with respect to the Earth is inversely proportional to the distance of the star from the Earth:
where
is the parallax angle, measured in arcsec
d is the distance between the star and the Earth, measured in parsec
Therefore, if the star Alpha Centauri is moved farther from Earth, then d increases, and therefore the parallax angle will get smaller.
Answer with Explanation:
Mass of pendulum bob, m=0.453 kg
Speed, 2.58 m/s
a.r=75.1 cm==0.751 m
Tension in the pendulum cable is given by
Tension=Centripetal force+force due to gravity
Where
Substitute the values
b.When the pendulum reaches its highest point,then
Final velocity,
According to law of conservation of energy
Substitute the values
The angle mad by cable with the vertical=
c.When the pendulum reaches at highest point then
Acceleration, a=0
Therefore, the tension in the pendulum cable
Substitute the values