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Nezavi [6.7K]
3 years ago
5

Two wagons are pulled with equal force. Wagon A is empty. Wagon B is carrying enough bricks to double the mass of the wagon. How

do their accelerations compare?
Wagon A will accelerate at twice the rate of Wagon B.
Wagon B will accelerate at twice the rate of Wagon A.
Wagon A will accelerate at half the rate of Wagon B.
Both wagons will accelerate at the same rate since their forces are the same.
Physics
2 answers:
Vaselesa [24]3 years ago
8 0

your answer would be B

Hoochie [10]3 years ago
6 0
B. Wagon B will accelerate at twice the rate as Wagon A. hope this helps!

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3 years ago
A tall cylinder contains 30 cm of water. Oil is carefully poured into the cylinder, where it floats on top of the water, until t
Anastaziya [24]

Answer:

The gauge pressure is  P_g  =  2058 \ P_a

Explanation:

From the question we are told that

       The height of the water contained is  h_w  =  30 \ cm  =  0.3 \ m

        The height of liquid in the cylinder is  h_t  =  40 \ cm  = 0.4 \ m

       

At the bottom of the cylinder the gauge pressure is  mathematically represented as

        P_g  =  P_w + P_o

Where  P_w is the pressure of water which is mathematically represented as

      P_w  =  \rho_w  *  g * h_w

Now  \rho_w is the density of water with a constant values of  \rho_w  = 1000 \ kg /m^3

   substituting values

      P_w  = 1000 *  9.8 *  0.3

     P_w  =  2940 \  Pa

While P_o is the pressure of oil which is mathematically represented as

          P_o  =  \rho_o *  g *  (h_t -h_w )

Where \rho _o is the density of oil with a constant value

         \rho _o  = 900 \ kg / m^3

substituting values

       P_o  =  900 *  9.8 * (0.4 - 0.3)

       P_o  =  882 \ Pa

Therefore

      P_g  =  2940 - 882

      P_g  =  2058 \ P_a

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I would choose B. exosphere. Astronomers study outer space, planets and ect.
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