Complete Question
The complete question is shown on the first uploaded image
Answer:
a) 58 Hz b) 7.73 mV
Explanation:
From the complete question we are given that
Radius of the semi circle , a = 3.0 cm = (3.0)(1 × m/1 cm)
=3.0 × m
Angular speed ,w = 58 rev/s
= (58 rev/s)(2π rad /1 rev)
= 364.4 rad/s
Magnetic field, B = 15 mT
= (15 mT)(1 × T/ 1 mT)
= 15 × T
a) f = 58 rev/s
= 58 Hz
b) The Induced emf, ∈ = ω<em>Bπ</em> /2
= T)(π)(3.0 × m)^2)÷2[/tex]
= 0.007728 V
= 7.73 mV
Answer:
1.927 m/s^2
Explanation:
period = 2 pi sqrt ( l/g)
3.2 = 2 pi sqrt (.5/g) =1.927 m/s^2
Answer:
kinetic
Explanation:
A vehicle takes good chemical energy stored in the bonds of hydrocarbons (gasoline) and converts it into movement (kinetic energy), air vibration (noise), and heat (wasted energy in the summer), some electricty for the radio, spark plugs, fans, and cell phone charger. But the aswer here is kinetic, since the word "moving" is specified.
Answer:
See below....the question is unclear....pick the answer you think they want
Explanation:
Car goes from 30 m/s to 24 m/s in 10 seconds
acceleration = change in velocity/change in time
= -6 m/s / 10 s = <u>- 3/5 m/s^2 </u>
<u />
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The wording of the question is not very good.....perhaps they meant to say that after the 5 seconds the velocity is now 24 m/s ?
a1 *10 + a2 *5 = -6 m/s
( 6 m/s is the change in velocity from 30 to 24 m/s)
a1/a2 = 1.5 so a2 = a1/1.5 (substitute this in)
10 a1 + 5 ( a1/1.5) =-6
15 a1 + 5 a1 = -9
<u>a1 = - .45 m/s^2</u>
Answer:
Gravity overcomes the hex nut's stationary inertia and moves the nut straight down into the bottle.
Explanation:
Hope this helps.
Have a good night ma´am/sir.
Be safe!