Answer:
B: 1530 N
Explanation:
We know ghat formula for force of gravity is;
F_grav = G•m1•m2/d²
We are told that two clay masses produce a gravitational force of 340N.
Thus;
G•m1•m2/d² = 340
Now, if the distance is divided by 3 and the mass of one is divided by 2, we have;
F_g = (G × m1/2 × m2)/(d/3)²
Thus gives;
F_g = ½(G•m1•m2)/((1/9)d²)
Simplifying this gives;
F_g = (9/2)G•m1•m2/d²
From earlier, we saw that;
G•m1•m2/d² = 340
Thus;
F_g = (9/2) × 340
F_g = 1530 N
<span>Following both the statements are true:
Some Defined it by
"Supported by most but not all".
Some defined it by this statement:
</span>"Not studied by many scientists"
Answer:
Polar areas
Explanation:
From what I know Arctic, Antarctic, and polar air masses are cold. Polar (cold), Arctic (very cold), Equatorial (warm and very moist), and Tropical (warm).
- With the options you gave, you can immeditaly elimate 1. tropical areas and 2. an area where its summertime.
- Your then left with two options 1. an area where its wintertime and 2. polar areas
I then concluded that cold air masses tend to originate from POLAR AREAS.
Answer:
16 % and 9 %
Explanation:
Accurate reading = 10 N
reading of first balance = 8.4 N
reading of second balance = 9.1 N
Percentage difference in first reading
= 
= 
= 16 %
Percentage difference in second reading
= 
= 
= 9 %
