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Debora [2.8K]
3 years ago
12

a car travels between the 100 meter and the 250 meter highway marker in 10 seconds calculate the velocity of the car during this

interval
Physics
1 answer:
kozerog [31]3 years ago
4 0

Given:\\\Delta s= 250m-100m=150m\\t=10s\\\\Find:\\v=?\\\\Roz.\\\\v=\frac{\Delta s}{t} \\\\v=\frac{150m}{10s} =15\frac{m}{s}

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True or false it is impossible to determine weather you are moving unless you can touch another object
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Answer: false

Explanation:

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3 years ago
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A scientist measures the growth of a bamboo plant over time. The table above shows the results. What is the best interference fo
lisabon 2012 [21]

(B) 2.25cm

<u>Explanation:</u>

Given:

At 40 hours, the height of the bamboo plant is 2.1cm

At 50 hours, the height of the bamboo plant is 2.4cm

Height of the bamboo plant after 45 hours = ?

The difference in length from 40 to 50 hours = 2.4 - 2.1cm

                                                                      = 0.3 cm

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Thus,

At 45 hours, the height will increase by 0.3/2

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Height at 45 hour = 2.1 + 0.15cm

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3 years ago
Question 25 of 30
VARVARA [1.3K]

Answer:

it's B. circuit a and b are series circuit while c is parallel

7 0
2 years ago
A long, East-West-oriented power cable carrying an
Alla [95]

Answer:

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Explanation:

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The change in flux density due to the current flowing in the power cable is

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The expression of magnitude flux density produced by the current carrying cable is

B=\frac{\mu_0I}{2\pi d}-----(2)

Substitute the value of flux density

B from eqn 1 and eqn 2

\frac{\mu_0I}{2\pi d}=5\times 10^-^6\\\\\frac{(4\pi \times 10^-^7)I}{2 \pi (8)} =5\times 10^-^6\\\\I=200A

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2 years ago
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Brilliant_brown [7]

Answer:

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