Answer:
here there is also an electric attraction force
Explanation:
In the insulating bodies the charges are not mobile, so when one of the body is charged periodically or gained some electrical charges.
When the body is neutral the net number of electric charges is zero. When the loaded body touches it, it repels the charges of the same sign whereby the induced load is of a different sign and the two adhered sheets are attracted.
With this explanation it is equivalent to that of the ball and the wall, so here there is also an electric attraction force
The color of a star would with that surface temperature would be White. Hope this helps. :)
a = 3.09 m/s²
<h3>Explanation</h3>
This question doesn't tell anything about how long it took for the car to go through 105 meters. As a result, the <em>timeless </em>suvat equation is likely what you need for this question.
In the <em>timeless</em> suvat equation,
where
- is the acceleration of the car;
- is the <em>final</em> velocity of the car;
- is the <em>initial</em> velocity of the car; and
- is the displacement of the car.
Note that <em>v</em> and <em>u</em> are velocities. Make sure that you include their signs in the calculation.
In this question,
Apply the <em>timeless</em> suvat equation:
.
The value of is greater than zero, which is reasonable. Velocity of the car is negative, meaning that the car is moving backward. The car now moves to the back at a slower speed. Effectively it accelerates to the front. Its acceleration shall thus be positive.
let the plane is flying at some angle theta with west towards north
Now we can use the components
now since plane has to fly towards west so net speed in north must be equal to speed in south for air
So we can say
so plane has to fly in direction 14.5 degree North of west
Answer:
The object fell from about 38.14 meters
Explanation:
We can use the formula for displacement under accelerated motion due to gravity to find the velocity of the object had 30 m before hitting the ground :
Now, knowing this velocity, we can find the time it took to fall from the initial position to 30 m before hitting the ground:
And now we can find what is the total distance covered in 1.5 s plus 1.29 seconds for this free falling object: