It is Real,Virtual,The Same Size, Inverted
The number of protons in any element can never change.
Answer:
Explanation:
Long screwdrivers are easier to turn because the grip is in the palm of the hand, thus allowing all fingers to contribute. A shorter screwdriver is turned with the thumb and first two or three fingers, providing much less torque.
A) The vertical component of velocity v is taking the rock to a height
Vertical component =

The time taken to reach maximum height =

So total time of rocks flight =

Range of rock is due to the horizontal component of velocity =

Range =

=

Maximum height =

=

Since range = maximum height
We have



So when angle of projection is

range is equal to maximum height reached.
b) We have range =

=

Maximum of range is reached when

Maximum range =

c) For range to be equal to maximum height only condition is

, it does not depend upon acceleration due to gravity and velocity. That angle is a constant.