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bonufazy [111]
3 years ago
10

Which material would result in the least amount of energy transfer?

Physics
1 answer:
Dovator [93]3 years ago
3 0

Answer:

The answer is A , aka, a reflector that is bright color and smooth

Explanation:

your welcome

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414nm just took the test
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The change in momentum experienced by a object is equivalent to the...
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Answer: C (impulse acting on the object)

The momentum is defined as it is the impulse acting on the force . Change in momentum is known as Impulse. Impulse is used to increase or decrease the momentum of object.                                    

From Newtons II law

              F = m. a

                = m. v/t               <em>since a = rate of change of velocity.</em>

<em>              </em>F . t = m . v

F . t is known as impulse momentum

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3 years ago
An experiment is performed in the lab, where the mass and the volume of an object are measured to determine its density. Two com
navik [9.2K]

Answer:

d. the same within the uncertainty of each measurement method

Explanation:

The density of an object and in general any physical property, has the same value regardless of the method used to measure it, either directly or indirectly. Since two completely different valid methods are used, the results must be the same, taking into account the level of precision of each of the methods.

8 0
3 years ago
A coil is connected in series with a 12.6 kΩ resistor. An ideal 65.2 V battery is applied across the two devices, and the curren
ivolga24 [154]

To solve the problem, start by applying the concepts related to current in an RL circuit. The current is defined exponentially and using Ohm's law we can put the initial current in terms of the voltage and resistance. Consecutively with the calculated time constant we can find the respective inductance. For the second part we will apply the electrical potential energy connectors to find the amount of stored energy.

PART A)

i = i_0 (1-e^{-t/T})

i = (V/R)(1-e^{-t/T})

0.00402 = (65.2/12600)(1-e^{-0.00402/T})

T = 0.002679s

T = L/R

Inductance can be defined then,

L = RT

L = (12600)(0.002679)

L = 33.75H

PART B) Now the energy is given under the terms:

E = \frac{1}{2}Li^2

E = \frac{1}{2} (33.75)(0.00402)^2

E = 0.0002727J

Therefore the energy stored in the coil at this same moment is 0.0002727J

3 0
3 years ago
If you lived downhill from a volcano and lava started to flow toward your home what could happen?
WINSTONCH [101]
If you lived downhill and lave started to flow toward your home sometime that could happen is the lava could completely demolish your home
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3 years ago
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