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maw [93]
3 years ago
15

A cart with an unknown mass is at rest on one side of a track. A student must find the mass of the cart by using newton’s second

law. The student attaches a force probe to the cart and pulls it while keeping the force constant. A motion detector rests on the opposite end of the track to record the acceleration of the cart as it is pulled. The student uses the measured force and acceleration values and determines that the cart’s mass is 0. 4kg. When placed on a balance, the cart’s mass is found to be 0. 5kg. Which of the following could explain the difference in mass?.
SAT
1 answer:
Stels [109]3 years ago
7 0

Answer:

The track was not level and was tilted slightly downward.

Explanation:

The track was not level and was tilted slightly downward.

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Storing chemical away from food, removing pits and bones from food and washing hands before preparing food is a safety practice that will help prevent biological hazard

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What is likely negative affect on the earth extra carbon dioxide is added to our atmosphere
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It will change weather patterns and destroy ecosystems.

Explanation:

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Read 2 more answers
A waitress sold 20 ribeye steak dinners and 12 grilled salmon​ dinners, totaling ​$559.11 on a particular day. Another day she s
Alexus [3.1K]

Answer:

  • Ribeye steak dinner ≈ $16.01
  • Grilled salmon dinner ≈ $19.91

Explanation:

  • <em>Number of ribeye steak dinners sold = x</em>
  • <em>Number of grilled salmon dinners sold = y</em>

Create two equations showing the amount sold and earned each day:

\left \{ {{20x+12y=559.11} \atop {29x+6y=583.72}} \right.

Solve the system of equations:

\left \{ {{20x+12y=559.11} \atop {29x+6y=583.72}} \right.\\\\=\left \{ {{20x+12y=559.11} \atop {29(2)x+6(2)y=583.72(2)}} \right.\\\\=\left \{ {{20x+12y=559.11} \atop {58x+12y=1167.44}} \right.\\\\(20-58)x+(12-12)y=559.11-1167.44\\\\-38x=-608.33\\\\x=\frac{-608.33}{-38} =16.01\\\\20x+12y=559.11\\20(16.01)+12y=559.11\\12y=559.11-20(16.01)\\12y=238.91\\y=19.91

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