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Vladimir [108]
3 years ago
14

The wavelength of yellow sodium light in air is 589 nm.

Physics
1 answer:
julsineya [31]3 years ago
3 0

Explanation:

answer is attached, kindly see answer

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A 350-g baseball is shot out of a small cannon with a velocity of 9.0 m/s. The baseball flies horizontally at a constant height
stira [4]

Answer:

9.5 kg m^2/s

Explanation:

The angular momentum of an object is given by:

L=mvr

where

m is the mass of the object

v is its velocity

r is the distance of the object from axis of rotation

Here we have:

m = 350 g = 0.35 kg is the mass of the ball

v = 9.0 m/s is the velocity

r = 3.0 m is the distance of the object from axis of rotation (if we take the ground as the centre of rotation)

Therefore, the angular momentum is:

L=(0.35)(9.0)(3.0)=9.5 kg m^2/s

4 0
3 years ago
How did Orsted discover Electromagnetism?
Liula [17]

Answer:

Hans Christian Oersted began a new scientific epoch when he discovered that electricity and magnetism are linked. He showed by experiment that an electric current flowing through a wire could move a nearby magnet. The discovery of electromagnetism set the stage for the eventual development of our modern technology-based world.

Explanation:

7 0
3 years ago
How man significant figures does the following value gave 43.023
Varvara68 [4.7K]

Answer:

It has 5 I hope this helps you

7 0
3 years ago
Westinghouse and Edison fought what was known as the war of the currents. Eventually, Westinghouse triumped using Alternating Cu
DerKrebs [107]
The answer is B! :) Hope it helped
6 0
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Which of the following tools measures weight? A balance A scale A cyclometer A graduated cylinder
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I'm pretty sure its a scale.
8 0
3 years ago
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