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Firlakuza [10]
3 years ago
12

Danny measures the temperature of a 1.0-kg sample of sand and a 1.0-kg sample of soil. He then leaves both samples in the Sun fo

r the 2.0 hours. At the end of this time, he measures their temperatures again.
A.
The soil absorbed more heat than the sand.
B.
The sand absorbed more cold energy than the soil.
C.
The soil absorbed more cold energy than the sand.
D.
The sand absorbed more heat than the soil.
Physics
1 answer:
slavikrds [6]3 years ago
5 0

Answer:

The sand absorbed more heat than the soil.

Explanation:

your welcome

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When equilibrium is reached in an electrochemical cell, the voltage reaches its maximum value. 1. false 2. true?
tigry1 [53]

False

Voltage in an electrochemical cell is in indication of equilibrium, higher will be the non-equilibrium, higher will be the voltage, or we can say at equilibrium voltage tends to 0.

Voltage in an electrical cell is the result of flow of electron, which flow due to difference in charge of the cells, higher the charge difference higher will be the voltage, as the equilibrium between the chemical cells established the flow of electron will stop, and the voltage of the cell tend to 0.

7 0
3 years ago
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A garbage truck has a mass of 2100 kg. It starts from rest and travels 75 meters in 15 seconds. The truck uniformly accelerates
Ivanshal [37]

Answer: F=(2100)(0.33)=693N

Explanation:

3 0
3 years ago
The weight of a metal bracelet is measured to be 0.10400 N in air and 0.08400 N when immersed in water. Find its density.
Anna007 [38]

Answer:

The density of the metal is 5200 kg/m³.

Explanation:

Given that,

Weight in air= 0.10400 N

Weight in water = 0.08400 N

We need to calculate the density of metal

Let \rho_{m} be the density of metal and \rho_{w} be the density of water is 1000kg/m³.

V is volume of solid.

The weight of metal in air is

W =0.10400\ N

mg=0.10400

\rho V g=0.10400

Vg=\dfrac{0.10400}{\rho_{m}}.....(I)

The weight of metal in water is

Using buoyancy force

F_{b}=0.10400-0.08400

F_{b}=0.02\ N

We know that,

F_{b}=\rho_{w} V g....(I)

Put the value of F_{b} in equation (I)

\rho_{w} Vg=0.02

Put the value of Vg in equation (II)

\rho_{w}\times\dfrac{0.10400}{\rho_{m}}=0.02

1000\times\dfrac{0.10400}{0.02}=\rho_{m}

\rho_{m}=5200\ kg/m^3

Hence, The density of the metal is 5200 kg/m³.

6 0
3 years ago
Take a close look at the energy transfers and transformations shown in the above diagram. Which type of energy is transformed in
Elanso [62]

Answer:

kinetic energy

Explanation:

a certain amount of energy is transferred by the kick. The ball gains an equal amount of energy, mostly in the form of kinetic energy.

4 0
3 years ago
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While passing through a human cell, an x-ray photon interacts with and inactivates the cell’s master molecule. What is the conse
Yuliya22 [10]

Answer:

Cell Death

Explanation:

Cell death is defined as the biological process which ceases the function of the cell to carry out. This can be caused due to the formation of new cells in place of old cells.

Or it can be cause due to some serious disease or may be caused due to the injury or due to the death of that organism to which these cells belong.

And another case is that when X-ray photon interact with the human cell while it passes through the cell, it   will damage the cell and cease it to function well and a more drastic condition occurs and that cell become dead.  

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