Answer:
The mercury in the barometer rises by a height of 0.0764 m = 76.4 cm = 764 mm
Explanation:
The change in pressure is related to the density of fluid and height risen by the fluid through the relation
ΔP = ρgh
ΔP = change in pressure = P₂ - P₁ = 1.1 - 1.0 = 0.1 atm = 0.1 × 101325 Pa = 10132.5 Pa
ρ = density of the fluid = 13,534 kg/m³
g = acceleration due to gravity = 9.8 m/s²
h = height through which the mercury in barometer rises = ?
10132.5 = 13534 × 9.8 × h
h = (10132.5) ÷ (13534 × 9.8)
h = 0.0763948996 = 0.0764 m = 76.4 cm = 764 mm
Hope this Helps!!!
<h3><u>Answer;</u></h3>
Eddy currents
<h3><u>Explanation</u>;</h3>
- <em><u>Eddy currents are currents which circulate in conductors like swirling eddies in a stream. These currents are induced by changing magnetic fields and flow in closed loops, perpendicular to the plane of the magnetic field. </u></em>
- They are created as a result of change in the intensity or direction of a magnetic field on a conductor, this occurs either when a conductor is moving through a magnetic field, or when the magnetic field surrounding a stationary conductor is varying
Answer:
Friction can be increased the longer two objects are rubbed together, since the longer they are rubbed is the more heat produced.
Explanation:
Answer:
Rachel(2.5,0)
ball(6.5,4.7)
b.R=10.15m/s, 27.57deg
Explanation:
The reference angle of Rachel is 0
resolving rachel's speed to the horizontal, we have
Ux=2.5cos0
Ux=2.5m/s
resolving rachel's speed to the vertical we have,
Uy=2.5sin0
Uy=0
for the ball
resolving the speed to its horizontal component
Ux=8cos36
Ux=6.5m/s
Uy=8sin36
Uy=4.7m/s
Rachel(2.5,0)
ball(6.5,4.7)
To get the resultant of their speed
Add the horizontal speed of rachel to that of the ball to get the total horizontal speed
Add the vertical speed of rachel and the ball to get the total vertical speed component
TUx=2.5+6.5=9M/S
TUy=0+4.7=4.7m/s
R=
R=
R=
R=10.15m/s
the direction
tan
=TUy/TUx
tan=4.7/9
=tan^-1(0.522)
=27.57deg
Should be true.
it's been awhile since I was learning this
