The alternating current which crosses an apparatus of 600 w has a maximum value of 2.5 a. what is efficient voltage between its demarcations? a. 140 v
b. 240 v
c. 340 v
d. impossible to find without knowing the resistance of the apparatus

Option (b) is correct.

Explanation:

Since we know that,

P = VI

where;

P = power

V= Voltage

I = Current

Since it's given that,

P = 600W

I = 2.5 A

equating these values in the above equation, we get;

V =

V = 240 V

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.