3 years ago

please help me guys please please please please please please please please please please please please please

Physics

2 answers:

Maurinko [17]3 years ago

5 0

Someone write the answers???

Elodia [21]3 years ago

3 0

Mass= Force/ Acceleration

11.2/520=0.02153846153

Explanation:

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which of these rocks are formed by volcanic activity? select the two correct answers. a. limestone b. granite c. marble d. basal

Gennadij [26K]

I think its = b and d

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3 years ago

Read 2 more answers

A solenoid used to produce magnetic fields for research purposes is 2.1 m long, with an inner radius of 28 cm and 1000 turns of

Veseljchak [2.6K]

Answer:

I = 2172.46 A

Explanation:

Given that,

The length of a solenoid, l = 2.1 m

The inner radius of the solenoid, r = 28 cm = 0.28 m

The number of turns in the wire, N = 1000

The magnetic field in the solenoid, B = 1.3 T

We need to find the current carried by it. We know that, the magnetic field in a solenoid is given by :

$B=\mu_o nI\\\\or\\\\B=\mu_o \dfrac{N}{L}I\\\\I=\dfrac{BL}{\mu_o N}$

Put all the values,

$I=\dfrac{1.3\times 2.1}{4\pi \times 10^{-7}\times 1000}\\\\I=2172.46\ A$

So, it carry current of 2172.46 A.

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3 years ago

As temperature increases, ________. Group of answer choices the resistance of a conductor remains the same the resistance of a c

amm1812

Answer:

resistance of a conductor increases

Explanation:

The resistance of conductors is directly proportional to the temperature of the conductor. This implies that when the temperature of the conductor is increased, the resistance of the conductor increases likewise.

This is applied in the resistance thermometer. Resistance thermometers are useful for accurate temperature measurements at very high or very low temperatures.

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3 years ago

A student is throwing a ball. She throws the ball up with her left hand, it passes over her head, and she catches it with her ri

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Answer:

(c) at point 2, the ball is at its highest height do its PE is max. Also at ms height, velocity is zero therefore KE is zero.

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3 years ago

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padilas [110]

Answer:

please in english......................................

Explanation:

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2 years ago

please help me guys please please please please please please please please please please please please please​

please help me guys please please please please please please please please please please please please please