Answer:
a) 
b) 
degrees and on this case to the South of the East.
c)
d) 
So it would be 250 to the South
Explanation:
Part a
For this case the figure attached shows the illustration for the problem.
We know that 
represent the velocity of the river to the south.
We have the velocity of the motorboard relative to the water and on this case is 
And we want to find the velocity of the motord board relative to the Earth 
And we can find this velocity from the Pythagorean Theorem.
Part b
We can find the direction with the following formula:
degrees and on this case to the South of the East.
Part c
For this case we can use the following definition
The distance would be D = w = 600 m and the velocity V = 4.8m/s and if we solve for t we got:
Part d
For this case we can use the same definition but now using the y compnent we have:
And replacing we got:
So it would be 250 to the South
Answer: 25N
method: total force in the right hand direction is 100N and total force in the left hand direction is 125N. To get the net force, we add forces if they are in the same direction and substract if they are in opposite directions. since 100N and 125N are in opposite directions, we substract the larger value from the smaller value. Then we get 25N in the left hand direction as the final answer.
According to the plot, static friction force has a maximum magnitude of around 3.0 N, and kinetic friction has a magnitude of about 1.5 N.
The plot appears to be telling you the force required to get the yellow block moving along the table. If one applies less than 3.0 N of force, the block remains motionless. But as soon as it starts to slide, one need only apply 1.5 N of force to keep it moving (presumably at a constant speed).
Answer:
Option C
Explanation:
The graph shows endothermic reaction because the reactants are lower in energy and the products are higher is energy. Endothermic reactions absorb energy having products with higher energy.
Answer:
THERE'S A GIRL WHO WILL STEAL YOUR INFO, PLZ DON"T PRESS THE LINK IF SHE ASKS YOU TOO!!!!!
Explanation:
