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Alexxandr [17]
3 years ago
7

Hi guys! :) I really need help on this!! Will def mark brainliest

Physics
1 answer:
Travka [436]3 years ago
3 0

Wavelength = (speed) / (frequency)

Speed of radio = speed of light.

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If you pull up on a bucket with a tension force of 15 N and the bucket has a weight of 15 N, what is the net force acting on the
fredd [130]

Answer:

F = 0 [N]

Explanation:

To solve this problem we must perform a summation of forces in the direction of the vertical axis. Where the positive force is that of the tension of the upward force, while the force exerted by the weight is directed downward with a negative sign.

ΣF = 0

15 - 15 + F = 0

F = 0 [N]

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larisa86 [58]

The positive charge is strongest in the middle, because that is were the charges are going off from.

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2 years ago
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2 years ago
A man standing on top of a 30 m tall building throws a brick downwards with a velocity of 12 m/s. Determine the speed of the bri
BlackZzzverrR [31]

Answer:

27.1m/s

Explanation:

Given parameters:

Height of the building  = 30m

Initial velocity  = 12m/s

Unknown:

Final velocity  = ?

Solution:

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         v²  = u²  + 2gh

v is the final velocity

u is the initial velocity

g is the acceleration due to gravity

h is the height

          v²   = 12²  + (2 x 9.8 x 30)

          v  = 27.1m/s

7 0
2 years ago
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