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Dmitry_Shevchenko [17]
3 years ago
10

.

Physics
1 answer:
Zina [86]3 years ago
8 0

Answer:

a cornea that is not curved enough

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One day, Pinki was ironing the clothes in her room. After half an hour of ironing, the light went off and Pinki went outside to
Triss [41]

Answer:

(a) An electric iron works on the heating effect of electric current

(b) The heating effect of an electric current is the tendency for electric current to cause the temperature of the material through which it is flowing to rise due to the resistance of the material

The heating effect, 'E', is given by the formula, E = I²·R·t

Where;

I = The current flowing

R = The resistance of the material

t = The time the material takes to heat up

(c) The values showed by Pinki here is the value of care, concern and prevention, to prevent the harmful effect of the high heat on the skin of her daughter

Explanation:

3 0
3 years ago
An object has 600J of kinetic energy from its motion and a speed of 10m/s. What is it's mass?
Gemiola [76]

Answer:

The mass is 12 kg

Explanation:

KE = \frac{1}{2} mv²

Substitute:

600 = \frac{1}{2} m(10)²

600 = \frac{1}{2} m 100

600 = 50m

m = \frac{600}{50}

m = 12

4 0
3 years ago
Heat always flows from a what place to a what place
Vera_Pavlovna [14]

Answer:

Heat is always the transfer of energy from an object at a higher temperature to an object at a lower temperature.

Explanation:

6 0
3 years ago
Read 2 more answers
1. (I) If the magnetic field in a traveling EM wave has a peak magnitude of 17.5 nT at a given point, what is the peak magnitude
Elan Coil [88]

Answer:

The electric field is E  =  5.25 V/m

Explanation:

From the question we are told that

    The peak magnitude of the magnetic field is  B  =  17.5 nT  =  17.5 *10^{-9}\ T

Generally the peak magnitude of the electric field is mathematically represented as

         E  =  c  *  B

Where c is the speed of light with value c  =  3.0 *10^{8} \ m/s

So

       E  =  3.0 *10^{8}  *  17.5 *10^{-9}

       E  =  5.25 V/m

8 0
4 years ago
Which pair does NOT have an electric force between them?
fenix001 [56]

Answer:

Two Neutral

Explanation:

If; One postive, and one negative they would be attracked. >-<

If; one postive and the other was postive, (or vice versa) they would repel <->

they both have an electrical charge, and force.

Neutral's are Nueatral. they have to opisition or attraction= No electrical force.

5 0
4 years ago
Read 2 more answers
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