<span>Humberto builds two circuits using identical components,
and then adds components to each circuit.
Circuit 1:
A series circuit with three lightbulbs.
Then add three more lightbulbs in series.
Circuit 2:
A parallel circuit with three lightbulbs
Then add two more lightbulbs on new branches
in parallel with each original bulb.
After adding the new lightbulbs in Circuit 1:
-- the voltage across each of the original bulbs is less,
-- the current through the whole series circuit is less,
-- the original three bulbs shine dimmer than before, and
-- the total power delivered from the battery is less.
-- The battery lasts longer.
After adding the new lightbulbs in Circuit 2:
</span>-- the voltage across each of the original bulbs is doesn't change,
-- the current through each original bulb doesn't change,
-- the original three bulbs shine just as bright as before,
-- the total currrent drawn by the circuit, and the total current
delivered by the battery, increases, and
-- the total power delivered from the battery increases.
-- The battery runs down sooner.
40kg
Explanation:
Given parameters:
Kinetic energy = 500J
Velocity = 5m/s
Unknown:
Mass of the object = ?
Solution:
Kinetic energy is the energy due to motion of a body. It is expressed as:
K.E = 
mv²
m is the mass of the body
v is the velocity
To find the mass, make it the subject of the expression:
m = ![\frac{2 K.E}{v[tex]^{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2%20K.E%7D%7Bv%5Btex%5D%5E%7B2%7D)
}[/tex]
m = ![\frac{2 x 500}{5[tex]^{2}](https://tex.z-dn.net/?f=%5Cfrac%7B2%20x%20500%7D%7B5%5Btex%5D%5E%7B2%7D)
}[/tex] = 40kg
Learn more:
Kinetic energy brainly.com/question/6536722
#learnwithBrainly
The answer is option C) The car experienced negative acceleration with velocity in the positive direction.
Answer:
1.5 m/s.
Explanation:
The Speed of a wave is the product of the wavelength and its frequency or it is the ratio of it wavelength and its Period. It can be expressed mathematically as
V = λf or λ/T .............................. Equation 1
Where V = speed of the wave travelling on the string, λ = wavelength of the wave, T = period of the wave, F = frequency of the wave.
Given: λ = 1.8 m ( distance it takes to repeat itself), T = 1.2 s (Time taken to complete a full cycle)
Substitute into equation 1
V = 1.8/1.2
V = 1.5 m/s.
Hence the wave is 1.5 m/s fast.
