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VARVARA [1.3K]
3 years ago
9

Hãy kể tên, kí hiệu, đơn vị một số đại lượng Vật Lý mà em đã học ở lớp 10, 11?

Physics
1 answer:
wariber [46]3 years ago
7 0
I’m not Vietnamese but I think your asking for this, for people who understand Vietnamese pls help them :d

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A student wants to draw a diagram to show the path of a light wave. Which
wariber [46]

Answer:

D

Explanation:

light moves in a straight line (sorry if I'm wrong)

8 0
3 years ago
A radio signal has a frequency of 1.023 x 108 HZ. If the speed of the signal in air is 2.997 x 108m/s, what is the wavelength of
Sladkaya [172]

Answer:

2.93 m  (which agrees with answer "C" on the list)

Explanation:

Recall that the speed of the wave equals the product of the wave's length times its frequency. Therefore, the wavelength is going to be the quotient of the speed of the signal divided its frequency:

Wavelength = 2.997  10^8 / 1.023  10^8 =  2.93 m

5 0
3 years ago
a 0.0780 kg lemming runs off a 5.36 m high cliff at 4.84 m/s. what is its total mechanical energy(ME)PLEASE HELP
lord [1]

Answer:

Explanation:

ME=mvh

m=0.0780kg

v=4.84ms⁻¹

h=5.36m

ME=0.0780*4.84*5.36

ME=2.02joules

6 0
3 years ago
Read 2 more answers
(Please Help, Will Give BRAINLIEST Answer)
Xelga [282]

Answer:

A

Explanation:

Initial gravitational energy = final kinetic energy + heat

mgh = KE + Q

(50 kg) (9.81 m/s²) h = 78400 J + 884000 J

h = 1960 meters

4 0
3 years ago
Please help , will surely mark As brainlest
Oliga [24]
The north arrow of the compasses will all point to the south since opposite poles attract. I have put an example picture below.

For the horse shoe magnet the magnetic field line will also go from north to south. I have put a picture of this below



8 0
3 years ago
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