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olchik [2.2K]
3 years ago
10

Someone help please 1 You are cycling along a flat road. a Are you moving up or down? ​ b What is the force that is pulling you

downwards? ​ c There is a force from the road acting on the bike. Is this force acting upwards or downwards?
Physics
1 answer:
9966 [12]3 years ago
7 0

Answer:

\gamma   \: 1a. \: i \: am \: moving \: downwards \: . \\ b. \: gravity \: is \: pulling \: me \: downwards \:  \\ c. \: the \: force \: is \: acting \: downwards \:  \\ the \: answer \: to \: the \: question \: c \: is \: downwars \: because \: its \: easy \: to \: pull \: the \: bike \: downwards \: but \: its \: hard \: to \: pull \: the \: bike \: upwards \: it \: would \: take \: more \: energy \:  \gamma  \\   \\

Explanation:

<h3><em>\infty  \infty  \: hope \: it \: helps \: you \:  \\ have \: a \: good \: a \: day \: .</em></h3>

<em><u>S</u></em><em><u>l</u></em><em><u>i</u></em><em><u>d</u></em><em><u>e</u></em><em><u> </u></em><em><u>m</u></em><em><u>y</u></em><em><u> </u></em><em><u>a</u></em><em><u>n</u></em><em><u>s</u></em><em><u>w</u></em><em><u>e</u></em><em><u>r</u></em><em><u> </u></em><em><u>t</u></em><em><u>o</u></em><em><u> </u></em><em><u>s</u></em><em><u>e</u></em><em><u>e</u></em><em><u> </u></em><em><u>t</u></em><em><u>h</u></em><em><u>e</u></em><em><u> </u></em><em><u>f</u></em><em><u>u</u></em><em><u>l</u></em><em><u>l</u></em><em><u> </u></em><em><u>a</u></em><em><u>n</u></em><em><u>s</u></em><em><u>w</u></em><em><u>e</u></em><em><u>r</u></em><em><u> </u></em><em><u>.</u></em><em><u> </u></em>

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A stone is dropped from a certain height, distance covered by it in one second is:
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Answer:

d = 4.9 m

Explanation:

It is mentioned that a stone is dropped from a certain height. It is required to find the distance covered by it in one second.

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Using second equation of motion :

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d=\dfrac{1}{2}gt^2\\\\d=\dfrac{1}{2}\times 9.8\times 1^2\\\\d=4.9\ m

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Using the equation for decay, calculate the amount left of a radioactive sample amount N0 if the decay constant is 0.00125 secon
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The amount left of a radioactive sample amount N0 if the decay constant is 0.00125 seconds and the time is 180 seconds is 0.7999 N.

<h3>What is half-life?</h3>

The time it takes for half of the original population of radioactive atoms to decay is called the half-life. The relationship between the half-life T1/2 and the decay constant is given by T1/2 = 0.693/λ.

  1. N=N0e−λt
  2. given λ = 0.00125 seconds
  3. t = 180 seconds
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Suppose you take a short piece of wire that is not attached to anything and move it up and down in a magnetic field. Explain whe
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Answer:

No.

Explanation:

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  • In this case, a short piece of wire that is not attached to anything and move it up and down in a magnetic field. It means that the circuit is not completed here. It is an open circuit. For the induction of current, a circuit must be completed.
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