Stu wanted to calculate the resistance of a light bulb connected to a 4.0-V battery, with a resulting current of 0.5 A. He used the formula R = VI and obtained an answer of 2 . Was Stu’s answer correct? How do you know?
Answers
Answer:
The answer is not correct.
Explanation:
Stu's answer is not correct, the equation to use is known as the law of ohm. In which the voltage is defined as the product of the current by the resistance, then we will see this equation.
In order to find resistance, this term is found multiplying the current on the right side of the equation, therefore the current will be divided on the left side of the equation.
That is the reason that the result found by Stu is not correct.
Answer:
Sample Response: Stu's answer was incorrect. According to Ohm's law, R = V/I. This is the equation that should be used to obtain the correct answer, which is 8 ohms.
Explanation:
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Answers
Answer:
A
Explanation:
B. The heavy caffeine molecules are more likely to fall apart than the lighter CuCl2 molecules.
C. The metallic bonds in copper chloride are stronger than the ionic bonds in caffeine.
D. Caffeine is a network solid and has a low melting point like other network solids.
Answers
Answer:
Option-A " The intermolecular forces holding the caffeine molecules together are weaker than the ionic bonds in CuCl₂ ".
Explanation:
There are two types of interactions among the atoms and molecules. One are known as intramolecular forces while the other are known as intermolecular forces.
Examples of Intramolecular forces are ionic bonds and covalent bonds e.t.c. while examples of intermolecular forces are hydrogen bond interactions, dipole-dipole interactions e.t.c.
Remember that intramolecular forces ar far more greater in strength than the intermolecular forces. Hence, in given statement the interactions between Caffeine molecules are intermolecular forces while, that between Cu and Cl ions in CuCl₂ are intramolecular forces.
Answers
Answer & Explanation:
This age may represent the age of the Earth's accretion, of core formation, or of the material from which the Earth formed. This dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.
Answers
Answer: Earth would become too hot.
Earth would eventually stop receiving heat.
Earth would become too cold.
Earth would lose all of its own heat.
Explanation:
Answer: EARTH WILL BECOME TO COLD
Explanation:
Answers
Answer:
5m/s2
Explanation:
Data obtained from the question include:
m (mass) = 2000 kg
F (force) = 10000N
a (acceleration) =?
Using the formula F = ma, the acceleration of the truck can be obtained as follow:
F = ma
a = F/m
a = 10000/2000
a = 5m/s2
The acceleration of the truck is 5m/s2
Final answer:
The acceleration of the truck when the brakes apply a force of 10,000 N is calculated using Newton's second law of motion (a = F/m) as 5 m/s².
Explanation:
The acceleration of a truck can be calculated using Newton's second law of motion which states that the acceleration of an object is the net force acting on it divided by its mass. This can be written as a = F/m, where a is acceleration, F is force, and m is mass. In this case, the force is the force applied by the brakes, which is 10,000 N and the mass of the truck is 2,000 kg. Applying the formula, a = 10000 N / 2000 kg = 5 m/s². Therefore, the acceleration of the truck when its brakes apply a force of 10,000 N is 5 m/s².
Learn more about Physics - Newton's second law of motion here:
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2. water being poured
3. triangular glass prism
4. 2 silver spoons
PLZ HELP!!
Answers
I just took the test and the two silver spoons was correct :)