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Ghella [55]
4 years ago
11

Pls with a clear explanation

Physics
1 answer:
Molodets [167]4 years ago
7 0

Explanation:

We know that :

P  =  \frac{V^{2} }{R}

Resistance of Bulb :

R =  \frac{ V^{2} }{P }  =   \frac{ {(240)}^{2} }{280}  = 205.71 \: ohms

As per Ohms laws :

Current when (V = 200)

i \:  =  \frac{ V}{ R}  =  \frac{200}{205.71}  = 0.97 \: A

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The consequence that an element of society produces for the maintenance of its social system.
allochka39001 [22]

Answer:

Function

Explanation:

This question defines a function. It is any consequence that is made up of positive structures which has a way of affecting the society in a positive way. And it also has a way of impacting structural continuity in the society. The functionalism idea has the postulation that all cultural or social phenomena is of positive function and cannot be ignored

7 0
3 years ago
What is the efficiency of a ramp if the input work is 96 J and the output work is 24 J?
iren2701 [21]

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Explanation: GOOGLE

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3 years ago
A body of mass 400 g is moving along a smooth surface at a velocity of 10 m s–1 east. It strikes a body of mass 650 g, initially
9966 [12]

Answer: v = 2.53 m/s at E 53.1° S

Explanation:

Conservation of momentum

The 400 g object has no North-South velocity, so the initial momentum in that direction is zero. The total momentum after collision must also be zero

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vy = -2.82376... m/s

In the East direction

400(10) = 400(8cos35) + 650vx

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v = √(2.12² + 2.82²) = 3.531667... ≈ 2.53 m/s

θ = arctan(vy/vx) = arctan(-2.82/2.12) = -53.087... ≈ E53.1°S

4 0
3 years ago
You're reading an article about forest fires in california and it features a photograph of firefighters battling a fire on a hil
Lelechka [254]
I will say it is about 20 m/s

7 0
3 years ago
What is velocity, because it describes both speed and direction?​
Vladimir [108]

Answer:

Velocity is a vector quantity. It has both, magnitude and direction. Velocity is the rate of change in the position of a body with respect to a frame of reference. One component is the magnitude of velocity which is speed. The other one is its direction.

Explanation:

Speed is a scalar quantity.

Velocity is a vector quantity.

There are two types of quantities:

1. Scalar quantity:

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2. Vector Quantity:

A vector quantity is a quantity which is described completely by both, its magnitude and direction.

3 0
3 years ago
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