Snorkel connects the diver's lungs with the air above the water. Because of this, the pressure inside the diver's lungs is the same as the atmospheric pressure.
The static pressure of a fluid is given with this equation:
The density of water is 1000kg/m^3.
Standart atmospheric pressure is 101<span>325Pa.
</span>The difference is:
Explanation:
i1=1ampere
i1+i2=I
VA−VB=i1×3Ω=i2×6
⇒1×3=i2×6
2i=21ampere
Hence I=i1+i2=1+0.5=1.5ampere
Req=2+3+63×6=2+93×6=4Ω
equivalent circuit
Refer image .2
From KVL
1req=v
v=1.5×4
In the absence of a net force, an object can be at rest or in motion with a constant velocity.
<h3>What is Newton's first law of motion?</h3>
Newton's first law of motion states that an object at rest or uniform motion in a straight line will continue in that path <u>unless acted upon</u> by an external force.
This law is also called the law of inertia because it depends on mass.
F(net) = ma
when, F(net) = 0, acceleration will be zero and velocity will be constant.
Thus, in the absence of a net force, an object can be at rest or in motion with a constant velocity.
Learn more about net force here: brainly.com/question/11556949
#SPJ1
Two resistors in series are often called a 'voltage divider', because the
total voltage divides in proportion to the resistances.
The total resistance in the string across the battery is (11 + 6) = 17 ohms.
-- The full battery voltage appears across 17 ohms.
-- The voltage across the 11-ohms is (11/17) of the battery, and
-- the voltage across the 6-ohms is (6/17) of the battery.
(6/17) x (B) = 9 volts
Multiply each side by (17/6) : B = (9 volts) x (17/6) =<em> 25.5 volts </em>.
By the way, in case you care or are asked . . .
-- The current in the whole series loop is B/R = 25.5 / 17 = 1.5 Amperes
-- The power drawn from the battery is B²/R = (25.5)²/17 = 38.25 watts
-- The power dissipated by the 6-ohm resistor is V²/R = 9²/6 = 13.5 watts
-- The power dissipated by the 11-ohm resistor is I²R = (1.5)² (11) = 24.75W
-- (Check: 13.5W + 24.75W = 38.25W yay! )
-- If they're just composition units hanging out in the air, then both resistors
are getting quite warm.
Explanation:
They probably put "rolls without slipping" in there to indicate that there is no loss in friction; or that the friction is constant throughout the movement of the disk. So it's more of a contingency part of the explanation of the problem.
(Remember how earlier on in Physics lessons, we see "ignore friction" written into problems; it just removes the "What about [ ]?" question for anyone who might ask.)
In this case, you can't ignore friction because the disk wouldn't roll without it.
As far as friction producing a torque... I would say that friction is a result of the torque in this case. And because the point of contact is, presumably, the ground, the friction is tangential to the disk. Meaning the friction is linear and has no angular component.
(You could probably argue that by Newton's 3rd Law there should be some opposing torque, but I think that's outside of the scope of this problem.)
Hopefully this helps clear up the misunderstanding for you.
