Answer:
Explanation:
A = 3m
B = 4 m
let the angle between the two vectors is θ.
the resultant of two vectors is given by
(a) R = 7 m
So, 
49 = 9 + 16 + 24 Cosθ
Cosθ = 1
θ = 0°
Thus, the two vectors are inclined at 0°.
(b) R = 1 m
So, 
1 = 9 + 16 + 24 Cosθ
Cosθ = - 1
θ = 180°
Thus, the two vectors are inclined at 180°.
(c) R = 5 m
So, 
25 = 9 + 16 + 24 Cosθ
Cosθ = 0
θ = 90°
Thus, the two vectors are inclined at 90°.
In a cathode ray tube, the number of electrons that reach the fluorescent screen is controlled by the grid. The correct option among all the options given in the question is option "B".When current is
supplied to the heater, it causes the cathode to emit electrons. The electrons
pass through opening of the grid before reaching the anode. By controlling the
number of electrons passing through the grid, the number of electrons reaching
the anode can also be controlled.<span>
</span>
Answer:
A block device is a computer data storage device that supports reading and (optionally) writing data in fixed-size blocks, sectors, or clusters. These blocks are generally 512 bytes or a multiple thereof in size
Using organs cloned from the cells of the patient <span>would prevent the rejection of tissue after an organ transplant.</span>
