As the wave travels through different media, its speed and wavelength change, and its frequency remains constant.
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Answer:
Option C is the correct answer.
Explanation:
We have charge stored in a capacitor
Q = CV
C is the capacitance and V is the voltage.
A capacitor is connected to a 9 V battery and acquires a charge Q.
That is
Q = C x 9 = 9C
What is the charge on the capacitor if it is connected instead to an 18 V battery
That is
Q' = C x 18 = 9C x 2 = 2Q
Option C is the correct answer.
Answer:
0.98 J
Explanation:
Use the formula KE=1/2mv² to get the answer .98 J
Answer:
Acceleration is the rate of change of velocity.
When the velocity of an object does not change, i.e., when the velocity is constant, the acceleration is <em>zero</em>.
Mathematically (differential form),
<h3><u>Zero</u> is the right answer.</h3>
Explanation:
Mobile phones improve connectivity between people even when they are separated by a great distance where they would not see each other physically for longer periods. This allows family members to keep in touch and continue sharing a bond even when they are distances away from each other due to circumstances such as work or school.
Applications on mobile phones can make work easier and efficient. An example is an app that allows farmers to access a market for their products without the use of middlemen. This improves their household incomes and therefore improves their well-being.