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BartSMP [9]
3 years ago
6

Please any one can help solving this question

Physics
1 answer:
klasskru [66]3 years ago
4 0
Which part are you stuck on? Or is it all of these questions?
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The battery of a flashlight develops 3 V, and the current through the bulb is 200 mA.What power is absorbed by the bulb?
Verizon [17]

Answer : The power absorbed by the bulb is, 0.600 W

Explanation :

As we know that,

Power = Voltage × Current

Given:

Voltage = 3 V

Current = 200 mA = 0.200 A

Conversion used : (1 mA = 0.001 A)

Now put all the given values in the above formula, we get:

Power = Voltage × Current

Power = 3V × 0.200 A

Power = 0.600 W

Thus, the power absorbed by the bulb is, 0.600 W

3 0
4 years ago
Vector A has magnitude 8.00 mm and is in the xy-plane at an angle of 127∘ counterclockwise from the +x–axis (37∘ past the +y-axi
Ilia_Sergeevich [38]

Answer:

-75.35°

Explanation:

Let C be the sum of the two vectors A and B. Hence, we can write the following  

A_{x} +B_{x} =C_{x} ......(1)\\A_{y} +B_{y} =C_{y} ......(2)

but since the vector C is in the -y direction, C_{x}  = 0 and C_{y} = —12 m.  

Thus  

B_{x} =-A_{x} =-[-Acos(180-127)]=(8)*cos(53)\\B_{x} =4.81m

similarly, we can determine B_{y} by rearranging equation (1)  

 B_{y} =C_{y} -A_{y} =-12m-[(8)*sin(53)\\B_{y} =-18.4m

so the magnitude of B is

B=\sqrt{B_{x}^2+B_{y}^2  } \\B=19m

Finally, the direction of B can be calculated as follows  

Ф=tan^{-1} (\frac{B_{y} }{B_{x} } )\\=-75.35

hence the vector B makes an angle of 75.35 clockwise with + x axis

8 0
4 years ago
How can an athlete participating in a 40m sprint modify and improve their performance based on the kinematic variable of speed a
aleksandrvk [35]

The athlete can improve performance by building strength, coordination and balance.

<h3>Who is an Athlete?</h3>

This is an individual who is proficient in sports and other forms of physical exercise.

Improvement of performance based on the kinematic variable of speed and acceleration can be achieved by building strength, coordination and balance by performing plyometric exercises etc.

Read more about Athlete here brainly.com/question/1532968

5 0
3 years ago
Classify each of the following hydro carbons as alkane,alkene or alkyne
timofeeve [1]

Answer:

a.)alkene

b.)alkane

d.)alkana

about c..I think there is something wrong with the question

5 0
3 years ago
Please help me :))
neonofarm [45]

Answer:

the one above the surface of earth

Explanation:

earth has gravity the ball of the moon would float away

7 0
3 years ago
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