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IgorC [24]
3 years ago
15

If the truck has a mass of 2,000 kilograms , what's its momentum?(v=35 m/s)

Physics
1 answer:
katen-ka-za [31]3 years ago
8 0

Answer:

\boxed {\boxed {\sf  70,000 \ kg*m/s}}

Explanation:

Momentum is the product of mass and velocity.

p=m*v

The mass of the truck is 2,000 kilograms and the velocity is 35 meters per second.

m= 2000 \ kg \\v= 35 \ m/s

Substitute the values into the formula and multiply.

p= 2000 \ kg * 35 \ m/s \\p= 70,000 \ kg*m/s

The truck's momentum is <u>70,000 kilograms meters per second.</u>

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Answer:

1/R = 1/R1 + 1/R2 + 1/R3

1/1 + 1/2 + 1/4 = 1 + .5 + .25 = 1.75

1/1.75 = .572

multiplying this by 100 gives us

R = 57.2 ohms

The smallest resistor (100 ohms) will draw the most current

(One can also use R = R1 R2 R3 / (R1 R2 + R1 R3 + R2 R3)

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The force required is equal to 30\pi N.

Explanation:

We know that

     Torque = force × perpendicular distance

                  = F × R = I×\alpha

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  From above equation \alpha  = \frac{FR}{I}              .............. 1

      We know that

              w=w_{o} +\alpha t                      ...........................2

               Given that t= 2 sec

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From equation 1 and 2 , we get

                  F =  \frac{wI}{RT}  =  \frac{w\times m \times r}{2t}

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A commonly used unit of mass in the English system is the pound-mass, abbreviated lbm, where 1 lbm = 0.454 kg. What is the densi
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Answer: The density of glycerine will be 0.028lbm/foot^3

Explanation:

Density is defined as the mass contained per unit volume.

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Putting in the values we get:

Density=\frac{0.99lbm}{35.3147}=0.028lbm/foot^3

Thus density of glycerine will be 0.028lbm/foot^3

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