Answer:
The magnitude of the resultant is approximately 5.391 units.
Explanation:
We notice that vectors have the following characteristics: A magnitude and direction. That is:
Where:
- Magnitude, dimensionless.
- Direction, measured in radians.
This expression can be rearranged as:
Where:
If we know a set of vectors of the form , the resultant vector () is the vectorial sum of every vector in the set:
If we know that , , and , the resultant vector is:
And lastly, we obtain the magnitude of the resultant by Pythagoras' Theorem:
The magnitude of the resultant is approximately 5.391 units.
Answer:
F' = 800 N
Explanation:
The electrical force between charges is 400 N.
The electrical force between two charges is given by :
If q₁' = 2q₁, new force becomes,
So, the new force becomes 800 N.
Answer:
220 N
Explanation:
When a shopping cart rolls into a parked car on the street, it hits the car with a force of 220 newtons.
We need to find the force the shopping cart experiences from the car.
We know that, Newton's third law of motion states that for every action there is an equal and opposite reaction.
Hence, the shopping cart experiences a force of 220 N from the car.
Answer: Snakes are reptiles
Explanation: All reptiles are ectothermic (they obtain body heat from their environment).