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hichkok12 [17]
3 years ago
9

_____ is the nonpersonal, paid communication a company places to influence consumer purchases.

Physics
1 answer:
GarryVolchara [31]3 years ago
6 0
Well publicity would be the socially accepted by standard prospect
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The current in a resistor is 2.0 A, and its power is 78 W. What is the voltage?
bazaltina [42]

Answer:

39 volts

Explanation:

Use the equation P=VI

78=V(2)

V=39

6 0
3 years ago
Work is the product of ___<br> _ and an object's displacement.
emmasim [6.3K]

Answer:

Force

Explanation:

W= F * d

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As you move from left to right across a period the number of valances electrons
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The valence electrons increase as you move left to right.
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which of the following describes the principle of conversation of charge? a.charge is created b. a charge can be transferred c.
victus00 [196]
B) in Physics, charge conservation is the principle that the total electric charge in an isolated system never changes. The net quantity of electrical charge, the amount of positive charge minus the amount of negative charge in the universe is always conserved.
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3 years ago
Air expands adiabatically in a piston–cylinder assembly from an initial state where p1 = 100 lbf/in.2, v1 = 3.704 ft3/lb, and T1
lutik1710 [3]

Answer:

Final temperature is equal to 1291.63°R  

Explanation:

given,

p₁ = 100 lb f/in²,               v₁ = 3.704 ft³/lb,           and T₁ = 1000 °R

p₂ = 30 lb f/in²                 n = 1.4

Δ u = 0.171(T₂ - T₁)

we know for poly tropic process

p vⁿ = constant

p₁ v₁ⁿ = p₂ v₂ⁿ

100 × 3.704¹°⁴ = 30 × v₂¹°⁴

v₂ = 8.753 ft³/lb

work done for poly tropic process

W = \dfrac{p_1v_1-p_2v_2}{n-1}

    = \dfrac{100\times 3.704-30\times 8.753}{1.4-1}

    = 269.525 lbf/in².ft³

W = \dfrac{269.525}{5.40395} Btu/lb

   = 49.87 Btu/lb

in the piston cylinder arrangement air is expanding acrobatically

Δ q = Δu + w

Δ u = - w

0.171(T₂ - T₁) = -49.87

0.171(T₁ - T₂) = -49.87

0.171 T₂ = 0.171 × 1000 + 49.87

T₂ = 1291.63 °R

Final temperature is equal to 1291.63°R  

5 0
3 years ago
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