C.
Explanation: ionic compounds are metals and nonmetals, refer to your periodic table
Answer:
F= 134.92 N
Explanation:
Given that
The mass of the moon ,M = 7.4 x 10²² kg
The mass of the man ,m = 79 kg
The radius ,R= 1.7 x 10⁶ m
The force exerted by moon is given as

Now by putting the values in the above equation we get

Therefore the force will be 134.92 N.
F= 134.92 N
Answer:
6667.9 J
Explanation:
We are given that
Mass of cannon.m=14 kg
Time,t=3.15 s
Initial velocity,u=0
We have to find the work done by gravity on the falling cannon ball.


Substitute the values

Work done,W=mgh
Using the formula

The force on the charge is 1.1×10⁻⁸ N.
<h3>What is force?</h3>
Force can be defined as the product of the mass of a body and its acceleration
To calculate the force on the charge, we use the formula below.
Formula:
- F = qvBsin∅............. Equation 1
Where:
- q = charge
- v = velocity
- B = magnetic field
- ∅ = Angle.
From the question,
Given:
- B = 25 mT = 0.025 T
- v = 250 m/s
- q = 3.5 nC = 3.5×10⁻⁹ C
- ∅ = 30°
Substitute the given values into equation 1
- F = (0.025)(250)(3.5×10⁻⁹)(sin30°)
- F = 1.093×10⁻⁸ N
- F ≈ 1.1×10⁻⁸ N
Hence, the force on the charge is 1.1×10⁻⁸ N.
Learn more about force here: brainly.com/question/12970081