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bija089 [108]
3 years ago
10

Heterogeneous Mixture And Homogeneous Mixture

Physics
1 answer:
sdas [7]3 years ago
7 0

Answer: Go ask your teacher and im sure if you search it on good it will answer faster than this.

Explanation: Have a great day \ and be safe

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Three objects move with a velocity of 1 m/s what is the total kinetic energy of the system?
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The total kinetic energy of the system is 2.5J
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A point charge Q is located a short distance from a point charge 3Q, and no other charges are present. If the electrical force o
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Answer:

d) F

Explanation:

According to columb's law:

"The magnitude of electrostatic force between two charges is directly proportional to the product of magnitude of two charges and inversly proportional to separation between them."

If q₁ and q₂ are magnitude of two charges, d is distance between them and k is dielectric constant, then force F is given by

                                               

                                              F=\frac{kq_{1}q_{2}}{d^2}

According to this force exerted on point charge Q is same as that of 3Q, so force point 3Q charge experience is also F

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3 years ago
A toy uses a spring to shoot an arrow with a suction cup on the end. The toy shoots a 34.2 g arrow and gives it a speed of 5.50
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Explanation:

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The efficiency of Spring Toy = 69%

<u>According to Conservation of Energy</u> :

P. E. = K. E.

NOW,

69% of P. E. = m * v^2 / 2

P.E. =  \frac{0.0342 \times 5.5 \times 5.5}{2 \times 0.69}  = 0.75J

6 0
3 years ago
At what condition the screw gauge dors not have zero error
lana66690 [7]
<span>The screw gauge doesn’t have a zero error when the zero of the main scale coincides with the zero of the vernier scale or circular scale.
 In case they don’t coincide then the instrument screw gauge is said to have a zero error which can be positive zero error or a negative zero error. In order to get an exact measurement, the error is added or subtracted from the value measured.</span>
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Which planet receives the most gravitational pull from the sun
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