Answer:
The time taken for the package to reach the ground is 20.6s
Explanation:
Given that the formula of distance is D = S×T where S represents soeed and T is time. So you have to substitute the following values into the formula :
This diagram shows a baseball’s motion. Which statement is best supported by the diagram? Kinetic energy becomes potential energ
y between points R and S. Maximum potential energy is at point P. Maximum potential energy is at point R. Potential energy becomes kinetic energy between points P and Q.
2 answers:
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Answer : <em>Her weight is lower on Venus because the acceleration due to gravity is lower.</em>
Explanation :
Venus is also called as Earth's twin. This is because both the mass and the size of Earth and Venus are almost same. The acceleration due to gravity on earth is while on Venus is
.
So, when Shari measure her weight on Venus she found her weight is lower on Venus. This is because the acceleration due to gravity is lower on the surface of Venus as compared to the Earth.
Since,
i.e. weight depends on g.
<em>So, correct prediction is (b)</em>
Answer:
Explanation:
Given that,
The speed of an electromagnetic wave traveling in a transparent nonmagnetic substance is given by :
Where
k is the dielectric constant of the substance.
v is the speed of light in water
So, the speed of light in water is