According to most scientists, cold fusion
Answers
According to most scientists, cold fusion will not be a practical source of energy on Earth. Option 1 is correct.
Cold fusion is a hypothetical type of nuclear fusion that would occur at or near room temperature. If it were possible to achieve cold fusion, it would be a virtually unlimited source of energy. However, there is no scientific consensus that cold fusion is actually possible, and there have been many failed attempts to reproduce the results of early experiments.
Most scientists believe that cold fusion will not be a practical source of energy is that it would require very high pressures and temperatures to initiate the fusion reaction. These conditions are difficult to achieve and maintain in a laboratory setting, and it is not clear how they could be scaled up to a commercial level.
Another problem with cold fusion is that it would likely be very expensive to produce. The materials and equipment needed to create the high pressures and temperatures would be very costly, and the energy output would probably be relatively low. Option 1 is correct.
The complete question is
According to most scientists, cold fusion
1. Will not be a practical source of energy on Earth
2. Would be a practical source of energy on Earth if it were less expensive
3. Will be a practical source of energy on Earth within the next few decades
4. Will always continue to be a practical source of energy on Earth
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will not be a practical source of energy on Earth
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C. Vinyl or neoprene gloves provide protection against hazardous chemicals due to their resistance to chemical exposure. Latex gloves can be permeable, and padded cloth gloves are not designed for chemical protection.
C. Vinyl or neoprene gloves are the appropriate choice for protecting hands from hazardous chemicals. Here's why:
1. Chemical Resistance: Vinyl and neoprene gloves offer excellent resistance to a wide range of chemicals, including acids, bases, solvents, and oils. This resistance creates a barrier that prevents hazardous chemicals from coming into contact with your skin.
2. Latex Allergies: Latex gloves (option A) can cause allergic reactions in some individuals, which can be severe. It's important to avoid latex gloves when working with hazardous chemicals to prevent potential allergic responses.
3. Physical Protection: Padded cloth gloves (option B) are typically designed for physical protection and comfort, not for chemical resistance. They may not provide an effective barrier against chemical exposure, making them unsuitable for this purpose.
4. Versatility: Vinyl and neoprene gloves are versatile and can be used in various laboratory, industrial, and healthcare settings where protection against chemical hazards is necessary.
5. Durability: These gloves are known for their durability and resistance to wear and tear, ensuring that they maintain their protective properties even during prolonged use.
It's essential to choose the right type of gloves based on the specific chemicals you are handling and their compatibility with the glove material. Always consult safety guidelines and material compatibility charts to select the most appropriate gloves for your specific chemical-handling tasks, ensuring the safety of your hands and skin.
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the correct answer would be A. Latex Gloves. vinyl or neoprene gloves will be eaten by most highly toxic chemicals and some lower toxicity chemicals and padded cloth gloves will just soak up the chemical.
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Answers
Answer: 1.55 Jg°C
Explanation:
The quantity of Heat Energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)
Thus, Q = MCΦ
Since,
Q = 943 joules
Mass of oil = 10g
C = ? (let unknown value be Z)
Φ = (Final temperature - Initial temperature)
= 89°C - 28°C = 61°C
Then, Q = MCΦ
943 J = 10g x Z x 61°C
943J = 610g°C x Z
Z = (943J / 610g°C)
Z = 1.55 Jg°C
Thus, the specific heat of the oil is 1.55 Jg°C
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Question 7 options:
Their speeds are the same.
the object with the greater speed has greater kinetic energy
the object greater speed has the lower kinetic energy
the object with the smaller mass has the greater kinetic energy
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Answer: Option (B) is the correct answer.
Explanation:
Kinetic energy is the energy due to the motion of an object.
Mathematically, K.E =
where m = mass
v = velocity
Therefore, an object whose velocity is more will have more kinetic energy.
Thus, we can conclude that out of the given options, the object with the greater speed has greater kinetic energy is true about their kinetic energy.
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When you make a trade-off, that could cause another trade-off then those can build up and make you lose everything.
Answer:
cant see the problem.
Explanation: