167•F which is c
Tell me my wrong from right
7) c
opposite charges attract, equal charges repell
8) c
Followed from equation
9) d
Same reason as under 7
The answer is C. Chemistry because it is fact based and has the characteristics of a real science.
Answer:
178.4 times
Explanation:
We have Newton formula for attraction force between 2 objects with mass and a distance between them:

where
is the gravitational constant on Earth.
is the masses of the 2 objects. and R is the distance between them.
From here we can calculate the ratio of gravitational force between the moon and the sun

We can divide the top and bottom by G and M





So the gravitational force of the sun is about 178 times greater than that of the moon to an object on Earth
Answer:
g = 11.2 m/s²
Explanation:
First, we will calculate the time period of the pendulum:

where,
T = Time period = ?
t = time taken = 135 s
n = no. of swings in given time = 98
Therefore,

T = 1.38 s
Now, we utilize the second formula for the time period of the simple pendulum, given as follows:

where,
l = length of pendulum = 54 cm = 0.54 m
g = acceleration due to gravity on the planet = ?
Therefore,

<u>g = 11.2 m/s²</u>