Answer:
3 x 10^18 kg
Explanation:
Time period, T = 3 days = 86400 x 3 = 259200 seconds
r = 7 x 10^5 m
Let M be the mass of planet
Use the formula of time period of satellite
Where, G be the universal gravitational constant.
By substituting the values
M = 3 x 10^18 kg
Thus , the mass of planet is 3 x 10^18 kg.
Answer:
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Explanation:
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Answer:
<h3>5 meter / sec.</h3><h3 />
Explanation:
speed = distance / time
= 15 meters / 3 seconds
= 5 meter / sec.
neutralization reactions occur when you combine two extremely reactive substances together for the purpose of rendering them inactive, or neutral.
The strain energy stored in a linear spring is
SE = (1/2)*k*x²
where
k = the spring constant
x = the extension (or compression) of the spring
Given:
k = 470 N/m
x = 17.0 cm = 0.17 m
Therefore
SE = 0.5*(470 N/m)*(0.17 m)² = 6.7915 J
Answer: 6.8 J (nearest tenth)
