Physics - Wave Diagrams Assignment
Wave
Wave
B
CAN SOMEONE HELP ME LOL
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Answer:At the top of the page is a transverswave
C= crest
B= wavelingth
D= trough
A= amplatud
The next wave is a longitudinal wave
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Answers
Answer:
To calculate how many joules of kinetic energy an electric car can have using the 250 joules of stored chemical energy from the battery, you'll need to consider the efficiency of the energy conversion from chemical to kinetic energy. Electric cars are not 100% efficient in converting stored energy to kinetic energy due to losses in the system, including in the motor, transmission, and drivetrain.
Let's say the efficiency of the conversion is "η," where η is a value between 0 and 1 (e.g., 0.85 for 85% efficiency). The kinetic energy (KE) the car can have will be:
KE = η * 250 joules
You can calculate the kinetic energy for different efficiency values by substituting η into the formula.
For example, if the efficiency is 85%:
KE = 0.85 * 250 joules = 212.5 joules
So, with an 85% efficiency, the electric car can have approximately 212.5 joules of kinetic energy from the 250 joules of stored chemical energy in the battery. The actual efficiency may vary depending on the specific car and its components.
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Answer:
b) Are more concentrated.
Explanation:
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Answer:The rod touching your hand will have a Negative charge.
Explanation: This phenomenon is described as charging by induction,the other iron rod became charged as a result the repulsion force existing between the positively charged iron rod and the electronic forces around the election sphere. This make it different from the charging done by contact where both iron rods have close contact and electron transfer is achieved through contact. The shows that an electric charge can be persuaded and caused to transfer to another metallic particle without physical contact with the charged metallic particle.
Answer:
The initial neutral rod would be induced with negative charges.
Explanation:
This process is called charging by induction. When you bring the charged rod close to that of the neutral, the charges in it would be redistributed. The positively charged rod attracts the negative charges within the neutral rod and repel like charges. Touching the neutral with hand causes the positive charge to be neutralised due to earthing. Thus the neutral rod has now been charged negatively.
B. 2.8 m/s2
C. 3.8 m/s2
D. 1.1 m/s2
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Answer:
Acceleration due to Gravity:
Explanation:
Here g is acceleration due to gravity. So C. 3.8 m/s2
b. Andromeda
c. Small Magellanic Cloud
d. Copernican Dwarf Elliptical
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If the speed of an object is tripled, its kinetic energy will be 9 times the initial value.
What is kinetic energy?
The kinetic energy of an object is the energy possessed by the object due to its motion.
K.E = ¹/₂mv²
where;
m is mass of the object
v is speed of the object
When the speed is tripled
K.E = ¹/₂m(3v)²
K.E = 9(¹/₂mv²)
Thus, if the speed of an object is tripled, its kinetic energy will be 9 times the initial value.
Learn more about kinetic energy here: brainly.com/question/25959744
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