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VMariaS [17]
3 years ago
8

(a) How long will it take an investment to double in value if the interest rate is 8% compounded continuously? (Round your answe

r to two decimal places.) yr (b) What is the equivalent annual interest rate? (Round your answer to two decimal places.)
Physics
1 answer:
NeX [460]3 years ago
5 0

Answer:

Explanation:

Given

rate of interest= 8%

For continuously compounded interest

A=Pe^{rt}

Where A=amount

P=Principal

r=rate of interest

t=time

2P=Pe^{0.08t}

2=e^{0.08t}

taking log both sides

\ln 2=0.08 t

t=\frac{\ln 2}{0.08}

t=8.66 yr

(b)Equivalent annual interest

2=(1+i)^t

2=(1+i)^{8.66}

2^{0.1154}=1+i

i+1=1.0832

i=0.0832

8.32 %

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Electromagnetic waves differ from the other types of waves because they are
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Correct answer choice is :



B) Able to travel through a vacuum.



Explanation:



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4 0
3 years ago
Read 2 more answers
Monochromatic coherent light shines through a pair of slits. If the wavelength of the light is decreased, which of the following
Law Incorporation [45]

Answer:

he correct answers are a, b

Explanation:

In the two-slit interference phenomenon, the expression for interference is

          d sin θ= m λ                       constructive interference

          d sin θ = (m + ½) λ             destructive interference

in general this phenomenon occurs for small angles, for which we can write

           tanθ = y / L

           tan te = sin tea / cos tea = sin tea

           sin θ = y / La

un

derestimate the first two equations.

Let's do the calculation for constructive interference

         d y / L = m λ

the distance between maximum clos is and

         y = (me / d) λ

this is the position of each maximum, the distance between two consecutive maximums

         y₂-y₁ = (L   2/d) λ - (L 1 / d) λ₁          y₂ -y₁ = L / d λ

examining this equation if the wavelength decreases the value of y also decreases

the same calculation for destructive interference

         d y / L = (m + ½) κ

         y = [(m + ½) L / d] λ

again when it decreases the decrease the distance

the correct answers are a, b

7 0
3 years ago
Elements from opposite sides of the periodic table tend to form ________.
Ivenika [448]
Ionic compounds is your answer. What happens is one atom donates electron(s) to the other atom, making one positive and the other negative. The opposite atoms attract, forming an ionic bond. 

Hope this helps! :)
4 0
3 years ago
A coin is dropped into a wishing well. It takes 1.1 seconds for a splash to be heard. Calculate the depth of the wishing well
Zigmanuir [339]

Answer:

If the wishing well was in a vacuum, then s=ut + 0.5 a t^2 (s=distance, ... wishing well if you drop a coin into it and hear the splash 10 seconds

Explanation:

8 0
3 years ago
An automobile starter motor has an equivalent resistance of 0.055 Ï and is supplied by a 12.0 v battery which has a 0.0305 Ï int
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12 V is the f.e.m. \epsilon of the battery. The potential difference that is applied to the motor is actually the fem minus the voltage drop on the internal resistance r:
\epsilon - Ir
this is equal to the voltage drop on the resistance of the motor R:
RI
so we can write:
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I= \frac{\epsilon}{R+r}=140~A
8 0
3 years ago
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