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gtnhenbr [62]
3 years ago
12

Convert 3.5 km/hr to m/s

Physics
2 answers:
Nastasia [14]3 years ago
8 0

Answer:

0.972222........

Explanation:

1. Convert km/h to m/h by multiplying by 1000

2. Divide by 60 so that you have 58.3333... meters per minute

3. Divide by 60 again so now you have 0.972222... m/s

Ronch [10]3 years ago
6 0
.0972............hdhsbsjs ka
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If the current through a bulb in a series circuit is 0.4 A and the potential difference across the bulb is 3 V then what is the
sergey [27]

Resistance of the bulb is 7.5 ohms

Explanation:

  • In a circuit, according to Ohm's Law, the potential difference (voltage) across an element is directly proportional to the current flowing through it.

That is, V ∝ I

⇒ V = IR, where R is the constant of proportionality called the resistance.

  • Here, current, I = 0.4 A and potential difference, V = 3 V

Resistance, R = V/I = 3/0.4 = 7.5 ohms

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3 years ago
In which type of reaction is matter created?
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Answer:

Matter can not be created or destroyed, it only changes forms.

Explanation:

conservation of matter

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4 years ago
If you tried to use a diverging lens as a magnifier by placing the object at the focal point, what type of image would be produc
gladu [14]

Answer:

Upright and smaller than the object

Explanation:

Diverging lens as the name suggests that the rays diverge after the refraction and do not meet in reality. A concave lens is called diverging lens. When there is refraction of light through a concave lens then the light bends away from the principal axis and hence never meet in reality but on tracing the rays backwards the rays appear to meet leading to the formation of a virtual image, which is erect and smaller than the object for an object placed at the focus of the lens.

Similar image is formed for any case when the object is between optical center and infinity.

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4 years ago
When does a zygote divide for the first time
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4 years ago
you are given a 1/5 model of a car that normally runs at 30 mph. what wind tunnel speed should you use to test the car? (assume
julsineya [31]

The wind tunnel speed that must be used to test the car 1 / 5 model of a car that normally runs at 30 mph is 150 mph

Re = u L / ν

Re = Reynold's number

u = Flow speed

L = Characteristic linear dimension

ν = Kinematic viscosity

ν_{p} = 1.516 * 10^{-5} m² / s

ν_{p} = ν_{m} = 1.516 * 10^{-5} m² / s

L_{m} = L_{p} / 5

u_{p} = 30 mph

Re_{m} = u_{m} L_{p} / 5 * 1.516 * 10^{-5}

Re_{p} = 30 L_{p} / 1.516 * 10^{-5}

In tunnel,

Re_{m} = Re_{p}

u_{m} L_{p} / 5 * 1.516 * 10^{-5} = 30 L_{p} / 5 * 1.516 * 10^{-5}

u_{m} = 30 * 5

u_{m} = 150 mph

Therefore, the wind tunnel speed that must be used to test the car is 150 mph

To know more about Reynold's number

brainly.com/question/12977616

#SPJ1

5 0
1 year ago
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