There is no (gap) in time between the action and the reaction
hope that helps:)
Answer:
A)s = 104.16 m
b)s= 104.16 m
Explanation:
Given that
u = 25 m/s
μ = 0.3
The friction force will act opposite to the direction of motion.
Fr= μ m g
Fr= - m a
a=acceleration
μ m g = - m a
a= - μ g
a= - 0.3 x 10 m/s² ( take g= 10 m/s²)
a= - 3 m/s²
The final speed of the mass is zero ,v= 0
We know that
v² = u² +2 a s
s=distance
0² = 25² - 2 x 3 x s
625 = 6 s
s = 104.16 m
By using energy conservation
Work done by all the forces =Change in the kinetic energy
Negative sign because force act opposite to the displacement.
- 3 x 2 x s = - 625
s= 104.16 m
The largest source of background radiation is radon
Answer: The correct option is (B) 0.875 Ω.
Explanation:
Equivalent resistance: It is defined as the sum of the all resistance present in the circuit.
There are two conditions:
(1) Resistors in series
Equivalent resistance,
(2) Resistors in parallel
Equivalent resistance,
According to the given circuit, the resistors are in parallel arrangement.
Given:
Thus,
Equivalent resistance will be:
Therefore, the equivalent resistance of the circuit is 0.875 Ω.