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icang [17]
4 years ago
12

What is the equivalent resistance if you connect three 10.0 resistors in parallel?

Physics
1 answer:
Lynna [10]4 years ago
7 0

Answer:

3.33 ohms

Explanation:

Parallel circuit :

1/Rtotal= 1/R1 + 1/R2 + 1/R3

1/Rtotal= 1/10 + 1/10 + 1/10

1/Rtotal=3/10

Therefore it Rtotal= 10/3=3.33 ohms

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Artemon [7]
Well, the lowest mass a triple beam balance can measure is 0
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3 years ago
The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A .30 caliber bullet has mass 7.20×10−3 kg a
katen-ka-za [31]

Answer:

Mg= 1.3418 kg*m/s

Explanation:

Mass of rifle

m_{r}=2.90 kg

Recoil velocity of rifle

v_{r}=1.95 m/s

Momentum of rifle

m*v_{r}=3.0kg*1.95\frac{m}{s}==5.85 \frac{kg*m}{s}

mass of bullet

mb=7.2x10^{-3} kg=0.0072 kg

velocity of bullet relative to muzzel

v_{b} = 601 m/s

velocity of bullet relative to earth= 601 - 1.95=599.05 m/s

momentum of bullet

m_{b}*m_{b}=7.2x10^{-3}kg*599.05\frac{m}{s}=4.3132 \frac{kg*m}{s}

the momentum of the propellant gases = momentum of rifle - momentum of bullet

the momentum of the propellant gases

Mg=5.655 -4.3132

Mg= 1.3418 kg*m/s

the momentum of the propellant gases in a coordinate system attached to the earth as they leave the muzzle of the rifle is 1.3418 kgm/s

5 0
3 years ago
A train travels 24 miles in 30 minutes calculate its average speed
Dafna1 [17]

Answer:

I thinck it would be 48.0

4 0
3 years ago
16. A student uses 110 N of force to push a box
Lubov Fominskaja [6]

Answer:

792J

Explanation:

Use the formula Force × Distance

With 110 newtons being the force and 7.2 meters being the distance

Which gives 792 and work us measured in joules therefore its joules

5 0
3 years ago
Describe the theory of plate tectonics and how it explains the presence of fossils from the same plants and animals in locations
Nesterboy [21]

Answer:

Explanation:

The theory of plate tectonics suggests that the earth is broken into a series of slabs called lithosphere that moves over the weak asthenosphere below it.

This theory has provided insight to many chimerical observations made in earth science like volcanism, earthquakes, orogeny e.t.c.

Theory came into limelight after the second world war based on the precepts of the continental drift theory and sea floor spreading theory.

Mantle convection provides the mechanism of motion for the moving plates.

  • We can explain the presence of fossils of the same plants and animals in locations that are different using this theory.
  • Once in time, the earth was a united land mass.
  • Therefore, geographical distribution of fossils across different terrain was not limited.
  • It was after the separation of the plates that diversity started.
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