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Nadya [2.5K]
3 years ago
10

A truck is traveling 70.0 kph away from you. The driver is blowing the horn, which has a frequency of 400 Hz. The air temperatur

e is 25°C. What is the observed frequency of the horn?
Physics
1 answer:
Helga [31]3 years ago
4 0
Use this site is better https://www.cymath.com/
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Points A and B lie above an infinite plane of negative charge that produces a uniform electric field of strength E=10 N/C. What
olasank [31]

There is no illustration of the problem provided but I'll attempt to provide an answer.

The relationship between the electric potential difference between two points and the average strength of the electric field between those two points is given by:

║E║ = ΔV/d

║E║ is the magnitude of the average electric field, ΔV is the potential difference between A and B, and d is the distance between A and B.

We are given the following values:

║E║= 10N/C

d = 3m

Plug these values in and solve for ΔV

10 = ΔV/3

ΔV = 30V

4 0
4 years ago
If the same pressure is exerted over a greater area will more of less force result?
Verdich [7]

Answer:

less force

Explanation:

less force because they is increase in area and not enough energy to balance the whole equation

8 0
3 years ago
13. Which of the following is considered to be a vector?
kompoz [17]
B velocity hope it helps
8 0
3 years ago
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Q1) After applying a force of 1000 N an object of mass 2000 kg will achieve what<br>acceleration?​
wlad13 [49]

Answer:

F=mass x acceleration

1000= 2000 x a

a=1000/2000

a=1/2 m/sec^2

<em><u>mark it as brainliest!!!</u></em>

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According to this graph, which statement describes how the amount of iron changes over time in the reaction
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The graph shows the production of Fe.
You can see from the graph that it increases rapidly and then slowly increases.
The answer is (A).

Cheers.
5 0
3 years ago
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