Answer:
Explanation:
On Earth the atmospheric presure is . This will be the pressure inside the lander. Outside, the pressure on Mars will be . This means that the net force will be outward (since inside the pressure is higher) and, since the area of the hatch is , of value:
Since 1lb in weight is equal to 4.45N, we can write:
Answer:
W = 46 J
Explanation:
We need to find the angle between the two vectors Force vector and displacement vector.
First we will find the angle α of the force vector
Then we find the angle β of the displacement vector
With these two angles we can find the angle between the two vectors
∅ = α + β = 25.56 deg
The definition of work is given by the expression
The absolute value of F will be:
The absolute value of d will be:
Now we have:
Allotropes are different forms of the same element. Different bonding arrangements between atoms result in different structures with different chemical and physical properties. Allotropes occur only with certain elements, in Groups 13 through 16 in the Periodic Table.
Ozone prevents much of the solar UV radiation.