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kkurt [141]
3 years ago
11

A wave has a period of 2 seconds and a wavelength of 4 meters calculate its frequency and speed

Physics
1 answer:
Harlamova29_29 [7]3 years ago
5 0
-- Frequency = 1/period = 1/2sec = 1/2 per sec = <em>1/2 Hz</em>.

-- Speed = (wavelength) x (frequency) = (4 m) x (1/2 per second) = <em>2 m/sec</em>
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What is the idea behind the law of multiple proportions?
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Answer:

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Explanation:

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3 years ago
Mr. Rudman drives his race car for 4 hrs at 150<br> miles/hr. How far will he travel?
Lilit [14]
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Kinetic friction acts on a baseball player sliding into first base. Will the player's velocity change?
Law Incorporation [45]
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7 0
3 years ago
A 5kg ball is on top of the school building at a height of 40m above the ground.
mojhsa [17]

Answer:

A-Caclcuate the potential energy of the ball at that height

Explanation:

(a). Mass of the Body = 10 kg.

Height = 10 m.

Acceleration due to gravity = 9.8 m/s².

Using the Formula,Potential Energy = mgh

= 10 × 9.8 × 10 = 980 J.

(b). Now, By the law of the conservation of the Energy, Total amount of the energy of the system remains constant.

∴ Kinetic Energy before the body reaches the ground is equal to the Potential Energy at the height of 10 m.

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(c). Kinetic Energy = 980 J.

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3 0
2 years ago
group 17 is called halogens family, and the group to the right is called the noble gases. How are these elements alike and how a
Verdich [7]
Similarities:
The halogens like noble gases are gaseous im nature. Example,
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Both are non-metals.

Differences: Halogens are very reactive because their octet needs only one electron tk complete. But, the nobles gases are quite stable and unreactive because the have complete octets.
8 0
3 years ago
Read 2 more answers
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