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Arada [10]
3 years ago
12

Is a vector necessarily changed if it is rotated through an angle ?​Explain

Physics
1 answer:
gavmur [86]3 years ago
6 0
Yes, since it depends on the normal and resultant
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For a freely falling object dropped from rest, what is the acceleration at the
Zinaida [17]

The acceleration of the object after 3 seconds of fall is -9.8 m/s².

The given parameters;

  • initial velocity of the object, u = 0
  • time of motion of the object, t = 3 seconds

Acceleration is the change in velocity per change in time of motion.

The acceleration of the object after 3 seconds of fall is calculated as follows;

  • Since the object is in free fall, the object experiences only acceleration due to gravity.
  • the magnitude of this acceleration due to gravity is 9.8 m/s²
  • the direction of this acceleration is downwards

 

Thus, the acceleration of the object after 3 seconds of fall is -9.8 m/s².

Learn more here: brainly.com/question/13197713

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3 years ago
Which physical property is best measured using only a balance?
Step2247 [10]
The answer is C-Mass
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Explain how a bathroom scale is like a biofeedback machine.
amid [387]

Answer:

                 

Explanation:

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What is the relationship in which the ratio of the manipulated variable and the responding variable is constant? A. inverse prop
Dafna1 [17]
That's a direct proportion.
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3 years ago
Define alpha and beta​
elena55 [62]

alpha is the excess return on an investment after adjusting for market related volatility and random fluctuations.

beta is a measure of volatility relative to a benchmark ,such as the S&P 500.

Explanation:

alpha and beta are two different parts of an equation used to explain the performance of stocks and investments funds. But in maths alpha and beta is the Greek alphabet

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