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3 years ago

Can someone fill this for me?

Mathematics

1 answer:

AURORKA [14]3 years ago

7 0

Answer:

6.2 by the power of 0 pulse 3

Step-by-step explanation:

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Write an equation for the simple harmonic motion of a ball on a spring that starts at its lowest point of 6 inches below equilib

olasank [31]

So a general harmonic equation is Asin(2πt/T). Little t is just a variable. 6 inches is the height of one maximum and one minimum from equilibrium, so that is the amplitude A. T is the period, or the time of one cycle (or wavelength), which is 2 seconds.

The equation is therefore (in terms of seconds and inches), 6*sin(2πt/2), or 6*sin(πt).

6 0

3 years ago

A painter is placing a ladder to reach the third story window, which is 12 feet above the ground and makes an angle of 80 degree

mash [69]

We know that
tan ∅=opposite side angle ∅/adjacent side angle ∅
adjacent side angle ∅=opposite side angle/tan ∅

in this problem
see the attached figure to better understand the problem
angle ∅=80°
opposite side angle ∅=12 ft (AB)
adjacent side angle ∅=? (AC)
adjacent side angle ∅=12/tan 80°------> 2.12 ft

the answer is
2.12 ft

3 0

4 years ago

Arachnophobia is the fear of spiders. People with arachnophobia suffer to different degrees, but they tend to react intensely to

zepelin [54]

Answer:

1. The null hypothesis is that there is no difference between the population means (in other words, there is no treatment effect).

2. The<u> alternative hypothesis</u> is that at least one of the population means is different from another (in other words, there is an effect Of at least one Of the treatments).

Step-by-step explanation:

In a statistical analysis, the statistician shares his participants into several groups and administers treatments to them. After administering the treatment, he might want to compare the values obtained to see if there is a difference. If he accepts the null hypothesis as true, that means that there was no difference between the population means. This can also be taken to mean that the result had no difference among the groups.

But if the alternative hypothesis was true, that means that the population means were not all equal and so, there was an effect from the treatment administered.

7 0

3 years ago

Mind helping a random person out with some math

victus00 [196]

Answer:

may be 7 and 8

but not sure.

3 0

3 years ago

Read 2 more answers

Anyone able to help with this question?

ELEN [110]

Answer:

This is trigonomentry

Use SOHCAHTOA

where :

s is sin

c is cos

t is tan

o is opposite (side)

h is hypotenuse (opposite of 90 degree angle)

and a is adjacent (side)

Sin = o/h

cos = a/h

tan = o/a

in this case we are looking for side BC which is the hypotenuse(h)

and we have the side adjacent(a) to angle 71

since we have a and h determine what to use SIN, COS, OR TAN?

we should use Cos

they‘ve given the angle so we should do this...

Cos71 = $\frac{6.3}{h}$

Cos71 = $\frac{6.3}{BC}$

now apply algebra...

6.3/cos71= BC

BC= 19.3507869666

BC = 19.4 (3SF)

8 0

3 years ago