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fomenos
2 years ago
15

Marcus was asked to find out what affects the strength of electromagnets. He was given a simple electromagnet made from a coil o

f wire and a power supply.
What variables could Marcus investigate?
Mathematics
1 answer:
Alja [10]2 years ago
5 0

Answer:

bncjk make sure bgfdf hi olb f see him be see vg hhzch

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Please help I’m confused
Sedbober [7]
F(-4) = 6, f(0) = -6, f(1) = -4
4 0
3 years ago
The half life of silicone-32 is 710 years. If 30 grams is present now, how much will be present in 300 years?
Irina18 [472]

Answer:

22.38 g of silicone-32 will be present in 300 years.

Step-by-step explanation:

A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and its given by

                                           N(t)=N_0(\frac{1}{2})^{\frac{t}{t_{1/2}}

where,

N(t) = quantity of the substance remaining

N_0 = initial quantity of the substance

t = time elapsed

t_{1/2} = half life of the substance

From the information given we know:

  • The initial quantity of silicone-32 is 30 g.
  • The time elapsed is 300 years.
  • The half life of silicone-32 is 710 years.

So, to find the quantity of silicone-32 remaining we apply the above equation

N(t)=30\left(\frac{1}{2}\right)^{\frac{300}{710}}=30\left(\frac{1}{2}\right)^{\frac{30}{71}}\approx22.38 \:g

22.38 g of silicone-32 will be present in 300 years.

7 0
3 years ago
Micheal plays 1/15 of a song in 1/5 of a minute. How many minutes will it take to play the whole song?
Vladimir79 [104]

Answer:

3 minutes

Step-by-step explanation:

To find how many minutes it will take to play the whole song, multiply 1/5 by 15

15(1/5)

= 3

So, it will take 3 minutes to play the whole song

6 0
3 years ago
Read 2 more answers
Find the X and Y intercepts of the graph x + 3y = 13​
Luden [163]

Answer: x-intercept 13,0 y 0, \frac{13}{3}

Step-by-step explanation:

5 0
3 years ago
What is the total cost of a $250 table with a 5% tax rate
Leni [432]

Answer: $262.50

Step-by-step explanation:

8 0
3 years ago
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