Explanation:
Electrical energy is energy derived from electric potential energy or kinetic energy. When used loosely, electrical energy refers to energy that has been converted from electric potential energy.
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Particles vibrate parallel to the direction the sound travels. It's a longitudinal wave.
Answer:
Explanation:
reading of scale = reaction force of surface R
centripetal force = R - mg = m v² / R , m is mass , v is velocity and R is radius of the circular path .
R = mg + m v² / R
given ,
m v² / R = .80 mg
v² = .80 x g x R
= .8 x 9.8 x 9 = 70.56
v = 8.4 m /s
Answer:
false, true, true, true, false
Explanation:
Given:
Focal length: 5.0 cm
image produced: -10.0 cm
mirror equation: 1/di + 1/do = 1/f
Look for the actual distance of the object from the mirror. Solve for do.
1/do + 1/(-10) = 1/5
1/do = 1/5 + 1/10
1/do = (1/5 * 2/2) + (1/10 * 1/1)
1/do = 2/10 + 1/10
1/do = 3/10
10 = 3do
10/3 = do
3.33 = do
The distance of the object from the mirror, rounded to the nearest centimeter is 3 cm.