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3 years ago

If r1 < r2 < r3, and if these resistors are connected in series in a circuit, which one dissipates the most power

1 answer:

6 0

All three have the same current, so that is not a factor. Wattage (power) is E*I or i^2 R. The higher the resistance, the more power dissipated. The answer is R3 because it has the highest resistance.
R3 <<<< ===== answer.

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There are many different mediums that waves travel through. What type of wave causes distortion of a medium?

iogann1982 [59]

The sound wave causes distortion of a medium. The sound wave is formed from the reflections of the sound waves from surrounding material. So, the sound that we hear in a room is a combination of the original sound and its reflections off of the various surfaces in the room.

5 0

3 years ago

Johnny walked to the other side of his building using the following steps: 10 meters North, 20 meters to the West, 40 meters Sou

nataly862011 [7]

Answer:

Distance traveled = 70 meters

Displacement = 36.06 meters

Explanation:

Let north be positive Y and east be positive X

10 meters north, displacement = 10 j meters

20 meters west, displacement = -20 i meters

40 meters south, displacement = -40 j meters

Total displacement = (10 j - 20 i – 40 j) meters = (- 20 i - 30 j) meters

Magnitude of displacement = $\sqrt{20^2+30^2}=\sqrt{1300}= 36.06 meters$

Distance traveled = 10+20+40 = 70 meters

6 0

3 years ago

In which of the following situation is work being done?

Afina-wow [57]

A wagon is pulled at an angle of 30 degrees to the horizontal.

6 0

3 years ago

Question 15 of 25

vichka [17]

Answer: conduction :it transfers heat between objects that are in direct contact with eachother

7 0

2 years ago

A 75Kg man jumps from a window 1.0m above the sidewalk. If the man falls with his knees and ankles locked, the only cushion for

liq [111]

Answer:

150153.06122 N

Explanation:

m = Mass of person = 75 kg

h = Height of fall = 1 m

g = Acceleration due to gravity = 9.81 m/s²

F = Force

s = Displacement = 0.49 cm

Potential energy is given by

$P=mgh\\\Rightarrow P=75\times 9.81\times 1\\\Rightarrow P=735.75\ J$

Work is given by

$W=Fs\\\Rightarrow F=\frac{W}{s}\\\Rightarrow F=\frac{735.75}{0.0049}\\\Rightarrow F=150153.06122\ N$

The average force exerted is 150153.06122 N

8 0

3 years ago