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lutik1710 [3]
4 years ago
9

The plug-in transformer for a laptop computer puts out 7.50 V and can supply a maximum current of 1.6 A. What is the maximum inp

ut current Ip in amps, if the input voltage is 240 V? Assume 100% efficiency
Physics
1 answer:
Mashcka [7]4 years ago
7 0

Answer:

The input current is 0.05 A.

Explanation:

Given that,

Output voltage = 7.50 V

Output current = 1.6 A

Input voltage = 240 v

We need to calculate the input current

The efficiency is 100% so.

Input power = output power

\dfrac{V_{i}}{V_{o}}=\dfrac{I_{o}}{I_{i}}

\dfrac{240}{7.50}=\dfrac{1.6}{I_{i}}

I_{i}=\dfrac{1.6\times7.50}{240}

I_{i}=0.05\ A

Hence, The input current is 0.05 A.

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Answer:

6 m/s²

Explanation:

From the question given above, the following data were obtained:

Velocity (v) = 30 m/s

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With the above formula, we can obtain the acceleration of the object as follow:

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3 years ago
what is the specific heat capacity of silver metal if 55.00g of the absored 47.3 calories of heat and temperature rise 15.°c​
igor_vitrenko [27]

Answer:

0.240 J/(g^{\circ}C)

Explanation:

When an amount of energy Q is supplied to a sample of substance of mass m, the temperature of the substance increases by \Delta T according to the equation

Q=mC_s \Delta T

where

C_s is the specific heat capacity of the substance

In this problem, we have:

m = 55.0 g is the mass of the sample of silver

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Solving the equation for C_s, we find the specific heat capacity of silver:

C_s = \frac{Q}{m \Delta T}=\frac{197.9}{(55.0)(15)}=0.240 J/(g^{\circ}C)

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