Answer:35.2 ft
Explanation:
Given
height of stick =4 ft
shadow length =2.8 ft
Angle of elevation of sun is
let the height of tree be h
as will remain same thus
h=35.2 ft
Can someone help me?!!!!!
1 answer:
<h2>Hello!</h2>
The answer is:
The third option, the approximate magnitude of the given vector is 9.9 units.
To calculate the magnitude (length) of a vector, we need to apply the following formula:
So, we are given the vector:
Then, substituting and calculating the magnitude of the vector, we have:
Hence, we have that the correct option is the third option, the approximate magnitude of the given vector is 9.9 units.
Have a nice day!
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The given figure is a loop of a wire with a resistor.
When the switch S is closed for long time and is suddenly opened, the direction of the induced current can be find out by using the rule of right hand screw. According to the right hand screw rule, the direction of the magnetic field at the loop is in the direction that points outwards. The strength of the current rapidly decreases as it is switch off and the magnetic flux that is linked with the loop wire will also decrease.
According to the Lenz's law, the direction of the induced current must be such the decrease in the magnetic flux. It means the direction of the magnetic field must be outwards and also normal to the plane of the screen. The direction of the induced anti clockwise or from right to left in the resistance.
