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AleksandrR [38]
3 years ago
13

Why does an ice cube melt when you hold it in your hand? Question 1 options: Heat from the ice cube is transferred to your hand.

The ice cube radiates heat to your hand. Your hand transfers temperature to the ice cube. Heat is transferred from your hand to the ice cube.
Physics
2 answers:
Sunny_sXe [5.5K]3 years ago
8 0
Your hand transferred temperature to he ice cube
alexira [117]3 years ago
7 0
Your hand transferred temperature to the ice cube
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What is the gravitational potential energy of a 0.550-kg projectile flying with 335 m/s, 72 meters above the ground?
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Answer:

GPE = 388.08 Joules.

Explanation:

Given the following data;

Mass = 0.550kg

Speed = 335 m/s

Height = 72 meters

We know that acceleration due to gravity, g is equal to 9.8 m/s²

To find the gravitational potential energy;

Gravitational potential energy (GPE) is an energy possessed by an object or body due to its position above the earth.

Mathematically, gravitational potential energy is given by the formula;

G.P.E = mgh

Where;

G.P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

Substituting into the formula, we have;

G.P.E = 0.550 * 9.8 * 72

GPE = 388.08 Joules.

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Forces applied in
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Answer:

A -Added when in the same direction

    Subtracted when in opposite directions.

Explanation:

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When a funnel shaped cloud considered as a tornado?
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Consider a monochromatic electromagnetic plane wave propagating in the x direction. At a particular point in space, the magnitud
weqwewe [10]

Answer:

a)   S = 2.35 10³   J/m²2 ,  

b)and the tape recorder must be in the positive Z-axis direction.

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c) the direction of the positive x axis

Explanation:

a) The Poynting vector or intensity of an electromagnetic wave is

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if we use that the fields are in phase

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we substitute

         S = E² /μ₀ c

let's calculate

        s = 941 2 / (4π 10⁻⁷  3 10⁸)

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b) the two fields are perpendicular to each other and in the direction of propagation of the radiation

In this case, the electro field is in the y direction and the wave propagates in the ax direction, so the magnetic cap must be in the y-axis direction, and the tape recorder must be in the positive Z-axis direction.

the answer is 5

C) The poynting electrode has the direction of the electric field, by which or which should be in the direction of the positive x axis

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2 years ago
Motion maps for two objects, Y & Z, are shown.
serg [7]

Answer: it’s 3 seconds

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