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Answer:
R = 6i - 4j + 10k
Explanation:
R = (2 + 1 + 3)i + (-3 + 1 - 2)j + (4 + 2 + 4)k
Answer:
Explanation:
We shall write the velocities given in vector form to make the solution easy.
The velocity of water with respect to earth that is waV(e) makes 30 degree with north or 60 degree with east so in vector form
waV(e) = 2.2 cos 60 i + 2.2 sin 60 j
waV(e) = 1.1 i + 1.9 j
Similarly , velocity of wind with respect to earth that is wiV(e) , is making 50 degree with west or - ve of x axes so we cal write it in vector form as follows
wiV(e) = - 4.5 cos 50 i - 4.5 sin 50 j
wiV(e) = - 2.89 i - 3.45 j
Now we have to calculate velocity of wind with respect to water that is
wiVwa
wiV( wa) = wiV ( e)+ eV(wa)
= wiV( e)- waV(e)
- 2.89 i - 3.45 j - 1.1 i - 1.9 j
= - 3.99 i - 5.35 j
Magnitude of this relative velocity
D² = 3.99² + 5.35²
d = 6.67 m /s
Most commonly the answer is A, the sun. A nebula is a nursery for stars. The Sun itself was created in a nebula. Also,you do not need college physics to understand this question
Answer:
The strength of the electric field is 
Explanation:
Here the electric force is equal to Newton's second law.
Let's recall that electric force is the electric field times the charge, so we have:
(1)
Where:
m is the proton mass
q is the proton charge
a is the acceleration
Using the equation (1) we have:
Therefore, the strength of the electric field is
I hope it helps you!
