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Harman [31]
2 years ago
9

A car and a truck collide in an intersection and the merged wreck continues along. During the collision. both kinetic energy and

momentum are conserved.B. neither kinetic energy not momentum is conserved.C. momentum is conserved but not kinetic energy.D. kinetic energy is conserved but not momentum.E. conservation depends upon the details of the collision.
Physics
1 answer:
Vilka [71]2 years ago
5 0

Answer:

C. Momentum is conserved but not kinetic energy.

Explanation:

This case represents an entirely inelastic collision, that is, a collision between the car and the truck that reduces total kinetic energy of the entire system, whereas linear momentum is conserved. Hence, correct answer is C.

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jek_recluse [69]

The magnitude of the electric field at the proton's location is 10,437.5 N/C.

<h3>What the magnitude of the electric field?</h3>

The size of the electric field is basically characterized as the power per charge on the test charge. On the off chance that the electric field strength is meant by the image E. Very much like gravity, electric fields work the same way. In any case, while gravity generally draws in, an electric field, then again, can either rebuff or draw in. By and large, the Electric Field submits to the super-position guideline. the all out Electric Field from various charges is equivalent to the amount of the electric fields from each charge separately. An electric field is the actual field that encompasses electrically charged particles and applies force on any remaining charged particles in the field, either drawing in or repulsing them.

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2 years ago
Sophie says that geologic maps do not matter because she gets no benefits from them. Why is Sophie wrong? a. She can see the ran
astra-53 [7]
The Answer is Option C 
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4 0
3 years ago
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Why do the north poles of these two magnets repel each other? A. The magnetic field that forms between the two north poles is ne
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Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular alumin
gogolik [260]

Answer:

7.54\cdot 10^{-7} C

Explanation:

The capacitance of a parallel-plate capacitor is given by

C=\frac{\epsilon_0 A}{d}

where \epsilon_0 is the vacuum permittivity, A is the surface area of the plates, d their separation.

We also know the following relationship

C=\frac{Q}{V}

where Q is the charge stored on the capacitor and V the potential difference between the plates.

Combining the two equations,

\frac{\epsilon_0 A}{d}=\frac{Q}{V}

We also know that for a uniform electric field (such as the one between the plates of a parallel-plate capacitor), we have

V= Ed

where E is the magnitude of the electric field. Substituting into the previous equation and re-arranging it,

\frac{\epsilon_0 A}{d}=\frac{Q}{Ed}\\Q=\frac{\epsilon_0 A E d}{d}=\epsilon_0 A E

For the capacitor in the problem:

A=\pi r^2 = \pi (\frac{d}{2})^2 = \pi (\frac{0.19 m}{2})^2=0.0284 m^2 is the area of the plates

E=3\cdot 10^6 N/C is the maximum electric field before a spark is produced

Solving for Q, we find the maximum charge that can be added before that occurs:

Q=(8.85\cdot 10^{-12})(0.0284)(3\cdot 10^6)=7.54\cdot 10^{-7} C

3 0
3 years ago
270000 round into 2 significant figures<br><br>270000 round into 3 significant figures ​
andrew-mc [135]

Answer:

270000 round into 2 significant figures

= 2.7 × 10⁵

Thus, 2 and 7 are significant figures.

270000 round into 3 significant figures

= 2.70 × 10⁵

Thus, 2, 7 and 0 are significant figures.

<u>-</u><u>TheUnknownScientist</u>

7 0
3 years ago
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