Answer:
They can travel in a vacuum.
Explanation:
» Only electromagnetic waves travel through vacuum. The other mechanical waves require a material medium to travel.
Last Thanksgiven my family and I went to Atlanta, my father drove the car at a speed of 80km/hr, and we spend 7.45hr to get ther
1 answer:
Answer:
Atlanta is at 596.0 km from the house.
Explanation:
The distance between Atlanta and the house can be found using the following equation:
(1)
Where:
v: is the speed = 80 km/h
t: is the time = 7.45 h
By solving equation (1) for d and entering the above values we have:
Therefore, Atlanta is at 596.0 km from the house.
I hope it helps you!
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Answer:
The person is 187[m] farther and 70° south to east.
Explanation:
We can solve this problem by drawing a sketch of the location of the person and the truck, then we will draw the displacement vectors and finally the length of the vector and the direction of the vector will be measured in order to give the correct indication of where the person will have to move.
First we establish an origin of a coordinate system.
We can see in the attached schema that the red vector is the displacement vector from the last point to where the truck is located.
The length of the vector is 187 [m], and the direction is 70 degrees south to East.
Answer:
New moment of inertia will be
Explanation:
It is given initially angular velocity
Moment of inertia
Angular momentum is equal to
Now angular velocity is decreases to
As we know that angular momentum is conserved
So
So new moment of inertia will be