Answer:
57 eV
Explanation:
= separation between the plates = 4.9 mm = 0.0049 m
= Potential difference between the plates = 57 Volts
= magnitude of charge on proton = 1 e
= Kinetic energy of the proton
Using conservation of energy
Kinetic energy lost = Electric potential energy gained
Answer:
Mass will be 4.437 kg
Explanation:
We have given force constant k = 7 N/m
Time period of oscillation T = 5 sec
So angular frequency
We know that angular frequency is given by
Squaring both side
m = 4.437 kg
Answer:
Explanation:
<u>Second Newton's Law</u>
It allows to compute the acceleration of an object of mass m subject to a net force Fn. The relation is given by
The net force is the sum of all vector forces applied to the object. The block has two horizontal forces applied (in absence of friction): The 30 N force acting to the right and the 60 N force to the left. The positive horizontal direction is assumed to the right, so the net force is
Thus, the acceleration can be computed by
The negative sign indicates the block is accelerated to the left