2 years ago

Ball Distance Traveled

Physics

1 answer:

valina [46]2 years ago

6 0

Ball 4 is moving the fastest

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4. The earth exerts a gravitational force of 3.5 N on an object. What is the mass of

Romashka-Z-Leto [24]

Answer:

I'm not sure

Explanation:

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2 years ago

How would you design an experiment to condition a rabbit to salivate to the ringing of a cell phone?

Klio2033 [76]

Food causes the response (salivation). Pair the food each time with a cell phone ringing. Continue this process with repetition.
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2 years ago

A wire is stretched right to its breaking point by a 5000 N force. A longer wire made of the same material has the same diameter

leva [86]

Answer:

Equal to 5000N

Explanation:

The stress on the material is defined by force per unit of cross-sectional area. So it depends on the force and the diameter of the wire, which is the same for both wires. The material that defines the breaking point, is also the same. Therefore, both wires have their breaking point the same at 5000N. The wire length plays no role in here.

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3 years ago

When the mass is removed, the length of the cable is found to be l0 = 4.66 m. After the mass is added, the length is remeasured

zaharov [31]

Answer:

$\gamma=6.07*10^5\frac{N}{m^2}$

Explanation:

For a linear elastic material Young's modulus is a constant that is given by:

$\gamma=\frac{F/A}{\Delta L/L_0}$

Here, F is the force exerted on an object under tensio, A is the area of the cross-section perpendicular to the applied force, $\Delta L$ is the amount by which the length of the object changes and $L_0$ is the original length of the object. In this case the force is the weight of the mass: