Answer:
Total charge provided by the battery could be 900000 C.
Maximum current provided by the battery for 37 minutes could be 405.405 A
Explanation:
Rating= 250 A-h
a. Total charge:
Suppose t=1h
We konw that , replacing:
Total charge provided by the battery could be 900000 C.
b. Maximum current for 37 minutes
Maximum current provided by the battery for 37 minutes could be 405.405 A
The correct answer to the question is C).An object accelerates in the same direction as that of the force applied.
EXPLANATION:
Before going to answer this question, first we have to understand Newton's second laws of motion.
As per Newton's second laws of motion, the rate of change of momentum is directly proportional to the net external force and takes place along the direction of force.
Mathematically
Here, P is the momentum and P = mv.
⇒ F =
= [m = constant]
= ma.
Here, m and v are the mass and velocity of a body .
'a' stands for the acceleration of a body which is the rate of change of velocity.
In vector form it can be written as .
Hence, it is obvious that the net external force is the product of mass with acceleration.
As mass is a scalar quantity, so we can say that force is simply the scalar multiple of mass with acceleration.
Hence, the direction of acceleration will be along the direction of force.
Answer:
the speed of the boat is 21.22ft/min
Explanation:
Hello!
To solve this exercise follow the steps below.
1. Draw the complete scheme of the problem (see attached image).
2. As you can see in the image, our goal is to determine the horizontal component of the velocity (Vx) that corresponds to that of the boat, for this the first thing we do is find the alpha angle using the height and the hypotenuse of the triangle.
3. Finally we find the horizontal velocity component using the cosine function
the speed of the boat is 21.22ft/min
