The most precise measurement of the speed of light in vacuum is 299,792,458 m/s. Which of the following values would you use to
write this speed in scientific notation to three significant figures?
1 answer:
Answer:
v = 3.00 x 10⁸ m/s
Explanation:
given,
speed of light in vacuum = 299,792,458 m/s
speed of light in scientific notation to three significant figures
v = 2.99792458 x 10⁸ m/s
by rounding off the speed to three significant figure.
v = 3.00 x 10⁸ m/s
On the fourth place the value is greater than 5 so, on the third place 1 will be added.
now, the speed with three significant figure comes out to be
v = 3.00 x 10⁸ m/s
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Answer:
41.4* 10^4 N.m^2/C
Explanation:
given:
E= 4.6 * 10^4 N/C
electric field is 4.6 * 10^4 N/C and square sheet is perpendicular to electric field so, area of vector is parallel to electric field
then electric flux = ∫ E*n dA
= ∫ 4.6 * 10^4 * 3*3
= 41.4* 10^4 N.m^2/C
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Answer:
water and air
Explanation:
- A wave is a transmission of a disturbance from one point or the source to another point.
- Transmission of a wave occurs through a material medium or a vacuum. Therefore a medium is the material through which a wave travels through.
- The medium may be in gaseous form, slid form or liquid form. Therefore water and air are example of medium of transmission of a wave.
Answer:
Kinetic energy
Kinetic energy is the motion of waves, electrons, atoms, molecules, substances, and objects.
