Answer:
F = 1.06N
Explanation:
In order to calculate the force that produces the given pressure you take into account the following formula:
(1)
P: pressure = 6.0kPa = 6.0*10³ Pa
F: force = ?
A: cross-sectional area of the tube = π r^2
r: radius of the tube = 1.5cm/2 = 0.75cm = 0.75*10^-2 m
You solve the equation (1) for F, and replace the values for the area A and the pressure P:
The force tha produces a pressure of 6.0kPa in a tube with a diameters of 1.5cm is 1.06N
Answer:
I = 0.75 A
Explanation:
The question is not to calculate the resistance, but to calculate the current. (The resistance is already given by the value of 2 Ohm).
U = I * R
I = U / R
with U = 1.5 V and R = 2 Ohm
I = 1.5 / 2
I = 0.75 A
Answer:
<em>285.79 N</em>
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Explanation:
Mass m of tightrope walker = 74.0 kg
distance of both ends pf rope = 10 m
angle at both ends of the rope = 8.00°
acceleration a of leap = 7.80
Force exerted on the rope due to the acceleration will be,
F = ma
F = 74 x 7.80 = 577.2 N
<em>This force creates a tension that is evenly divided on the ropes from the midpoint, i.e force on each end of the rope = 288.6 N</em>
Tension T = F sin∅
T = 288.6 sin 8.00° = <em>285.79 N</em>
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