Answer:
please find the answer in the attached image, divided in 2 parts.
Answer: False, the factors that can affect the weight are the mass of the planet and the radius of the planet.
Explanation:
First, we can write the weight as:
W = m*g
where m is the mass and g is the gravitational acceleration.
For example. g in the Earth is 9.8m/s^2, and g on Mars is 3.71 m/s^2, so you will weight more in Earth than on Mars, and Earth is closer to the Sun than Mars, so the statement is false.
Now, the gravitational acceleration depends primarily on the mass of the planet, this is because the gravitational force between two objects can be written as:
F = G*M*m/r^2
Where M is the mass of the planet, and m is your mass and r is the distance between you and the planet, if you are in the surface, r is the radius of the planet.
Here we can see that planets with more mass and smaller radius (more density) have the strongest gravitational force on any object near them.
You have said that 15cm³ of gold weighs 2.8N. So I may infer that each cm³
of gold weighs about 0.19N. When I compare that figure with the 0.13N per cm³
of mercury, it becomes immediately apparent that the gold is more dense than
mercury. Therefore, the sample of gold, no matter what its size or weight, will
displace its total volume of mercury, and will go on to sink entirely beneath the
waves in the mercury.
D.
Most are poor conductors of electricity.
Answer:
Also 0
Explanation:
Since average speed of an object is that object's displacement over a unit of time, when an average speed is 0, its displacement over a unit of time must also be 0. When an average speed is not 0, then its displacement over a unit of time is also not 0 for that interval.
