Answer:
a=1.8 m/s^2
Explanation:
F=ma
So
a=F/m
Where F=1800 N, m=1000 kg
a=1800/1000
a=1.8m/s^2
Answer:
a ) -10780 Pa
Explanation:
b ) Initially the pressure inside lungs and atmospheric pressure are equal . When the gauge pressure of the lungs becomes negative , its pressure becomes less than the atmospheric pressure . It creates a pressure difference between the pressure acting on the open surface of water and surface of water inside the pipe which is connected to the lungs. This difference pulls the water inside the pipe.
Pressure difference = gauze pressure of lungs = h d g = 1.1 x 1000 x 9.8
= 10780 Pa.
In the circuit outside of the battery the electrons have to expend all of their energy on the internal resistance of the battery which causes heating
Explanation:
density = mass divide volume
the volume must be there in order to answer the question.
<span>we know energy = power*time(in hour)
so energy used by 1.20kw(1200 watt) toast oven used for 6.2 min(6.2/60 hour) =
1200*(6.2/60)=1200*0.103 = 124 watt hour.
Energy used by 11 w cfl used for 8.50 hour = (11*8) + (11* (50/60)) = 88+9.166=97.166 watt hour.</span>
