Answer:
The acceleration of the elephant is 5m/s^2 (squared).
Explanation:
Given: Force=200N, Mass=1000kg
Required: acceleration=?
Equation: a=F/m
Solution: a=200N/1000kg
Answer: a=5m/s^2
Well its C, cant show you the work its in my head sorry.
Remark
When you are asked a question like this, the first thing to do is search out a formula and put some limits on it.
Formula
I = E/R which comes from E = IR. To get to the derived formula, divide both sides by R
E/R = I*R/R
E/R = I
Discussion
This is an inverse relationship. That means that as one goes up the other one will go down.
So in this case you keep E constant and you manipulate R and look at your results for I
Case 1
Let us say that E = 10 volts
Let us also say the R = 10 ohms
I = E/R
I = 10/10
I = 1 ohm
Case Two
Let's raise the Resistance to 100 ohms
E = 10
R = 100
I = 10/100 = 0.1
Conclusion
As the Resistance goes up, the current goes down. Answer: A
Answer:
The net magnetic field ta the center of square is.
Explanation:
Current, I = 12 A , side ,a = 10 cm = 0.1 m
Let the magnetic field due to the one side is B.
The magnetic field is given by
Net magnetic field at the center of the square is
B' = 4 B
The net force on the hanging object is zero. If it were not zero, then the object would be accelerating in some direction.