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3 years ago

Look at the circuit diagram.

Physics

2 answers:

Nikitich [7]3 years ago

8 0

Answer: The correct option is B.

Explanation:

In the given circuit, the circuit is closed as the battery is connected to the circuit and the current is flowing.

The two bulbs connected in the circuit are in series combination as the same amount of current is flowing in the bulbs.

In the parallel combination, the amount of current flowing in the circuit across resistance is different.

Therefore, the provided circuit is closed series circuit.

Fiesta28 [93]3 years ago

6 0

B. closed series circuit because the resistors are one after the other and there is no open switch.

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Explanation:

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4 years ago

A satellite circles the earth in an orbit whose radius is six times the earth's radius. The earth's mass is 5.98 1024 kg, and it

makkiz [27]

Answer:

The period of the satellite is 12.05 s.

Explanation:

The period of the satellite can be determined by;

T = $\sqrt{\frac{4\pi ^{2} r^{2} }{GM} }$

where: T is the period, r is the radius of the orbit, G is the gravitation constant and M is the mass of the Earth.

Given that: r = 6 x (6.38 x $10^{6}$ ) = 38.28 x $10^{6}$ m, M = 5.98 x $10^{24}$ kg, G = 6.673 x $10^{-11}$ N $m^{2}$ / $kg^{2}$ .

Therefore,

T = $\sqrt{\frac{4*(\frac{22}{7} )^{2} (38.28*10^{6}) ^{2} }{6.673*10^{-11} *5.98*10^{24} } }$

= $\sqrt{\frac{5.79*10^{16} }{3.99*10^{14} } }$

= $\sqrt{145.113}$

= 12.0463

T = 12.05 s

The period of the satellite is 12.05 s.

5 0

3 years ago

A baseball travelling horizontally at 41 m/s [S] is hit by a baseball bat, causing its velocity to become 47 m/s [N]. The ball i

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Answer:

$46.3\times 10^3 m/s^2$

Explanation:

We are given that

Initial velocity of baseball=u=-41m/s

Because final and initial velocity are in opposite direction

Final velocity of baseball=v=47m/s

Time=t=1.9 ms= $1.9\times 10^{-3} s$

1 ms= $10^{-3} s$

We have to find the acceleration .

We know that

Acceleration= $a=\frac{v-u}{t}$

Using the formula

Acceleration= $a=\frac{47+41}{1.9\times 10^{-3}}m/s^2$

Acceleration= $46.3\times 10^3 m/s^2$

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3 years ago

If a 16 N net force makes an object accelerate at 4 m/s2, what is the mass of the object?

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Answer:

4 kg

Explanation:

Acceleration = 4 m/s^2

Force = 16 N

Force = mass * acceleration

mass = force / acceleration

mass = 16 / 4

mass = 4 kg

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3 years ago

A 10-turn ideal solenoid has an inductance of 4. 0 mh. to generate an emf of 2. 0 v the current should change at a rate of:_____

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The answer is 500 A/sec.

N=10 ; Solensid; L=4 m H ; $\varepsilon=2 \mathrm{~V};$

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$0.5 \times 10^{3}=\frac{d I}{dt}$

So, 500 A/sec.

What is Solensid?

Electromagnets are magnets in which the wire is coiled around an iron core. When an electric current is applied to the iron core, a magnetic field is formed around it. When the power is turned off, the magnetic field dissipates. The wire-wound core of the magnet is ferromagnetic or ferrimagnetic in nature. The most prevalent material utilised in the core is iron.
The magnetic field created is governed by the availability of power. A permanent magnet does not require electricity, and its magnetic field cannot be changed. Solenoid, MRI machines, hard drives, relays, motors, loudspeakers, and generators all employ electromagnets.

To learn more about Solensid visit:

brainly.com/question/15061394

#SPJ4

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2 years ago