Given data:
* The height of the balcony is 52.8 m.
* The initial velocity of the coin is zero.
Solution:
By the kinematics equation, the time taken by the coin to land on the fountain is,
where H is the height, g is the acceleration due to gravity, u is the initial velocity, and t is the time taken,
Substituting the known values,
Answer:
Explanation:
We shall find electric field at origin due to two given charges sitting on the either side of origin .
Total field will add up due to their same direction .
Field due to a charge Q
= 9 x 10⁹ x Q / R² ; R is distance of point , Q is charge
Field due to first charge
= 9 x 10⁹ x 40 x 10⁻³ / 2² x 10⁻⁴
= 90 x 10¹⁰ N/C
Field due to second charge
= 9 x 10⁹ x 50 x 10⁻³ / 2² x 10⁻⁴
= 112.5 x 10¹⁰ N/C
Total field
= 202.5 x 10¹⁰ N/C
Force on given charge at origin
= charge x field
= 4 x 10⁻³ x 202.5 x 10¹⁰
= 810 x 10⁷ N .
The speed of the particle to pass through the Selector is 2875 m/s
<u>Explanation:</u>
Given -
Electric field,(We can represent as E) = 460 N/C
Magnetic field, (We can represent as B) = 0.16 T
Speed,(We can represent as v) = ?
We know that the formula for finding the velocity ,
Therefore, speed of the particle to pass through the Selector is 2875 m/s
Solid, liquid, gas and something else