answer- 2.3
km/hr 120/1 276/h 276/2.3
Complete Question
The complete question is shown on the first uploaded image
Answer:
The current is 
Explanation:
From the question we are told that
The voltage of battery is 
The capacitance of capacitor is 
The resistance of the resistor is 
Generally the current at the instant the capacitor starts charging is

substituting values


The answer is B because the tire is circular. it will have more momentum and of course it can’t be on snow since it’s not smooth enough for the ice. Plus the sled will go slower on a grass hill since sled needs smooth flooring for no friction.
Answer:
Heat required to raise the temperature of aluminium is 2250 J
Explanation:
Heat required to raise the temperature of the given substance is

here we know that
m = 0.10 kg
specific heat capacity of the metal is
s = 900 J/kg C
change in temperature of the metal is 25 degree
Now we have

