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3 years ago

ANswer this question!!!!!

Mathematics

1 answer:

4vir4ik [10]3 years ago

6 0

Its Going to Be Table B! Good Luck :)⇔

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Explorers on a planet with a thin atmosphere want to measure the acceleration of gravity at its surface. So they use a spring gu

Murljashka [212]

Answer:

The value of $g_s$ is $g_s=\frac{30}{21} \:\frac{m}{s^2}$ .

Step-by-step explanation:

We know that the position function is given by

$s(t)=30t-\frac{g_s}{2} t^2$

Velocity is defined as the rate of change of position. Therefore,

$v(t)=\frac{d}{dt}(s(t))$

So, the velocity function is

$v(t)=\frac{d}{dt}(s(t))\\\\v(t)=\frac{d}{dt}(30t-\frac{g_s}{2} t^2)\\\\\mathrm{Apply\:the\:Sum/Difference\:Rule}:\quad \left(f\pm g\right)'=f\:'\pm g'\\\\v(t)=\frac{d}{dt}\left(30t\right)-\frac{d}{dt}\left(\frac{g_s}{2}t^2\right)\\\\v(t)=30-g_st$

When a body reaches a vertical velocity of zero, this is the maximum height of the body and then gravity will take over and accelerate the object downward. Thus,

$v(t)=30-g_st=0\\\\g_s=\frac{30}{t}$

We know that the ball bearing reaches its maximum height 21 seconds after being launched (t = 21 s).

So, the value of $g_s$ is $g_s=\frac{30}{21} \:\frac{m}{s^2}$ .

5 0

3 years ago

Help me Please I need it !

evablogger [386]

Answer:

Step-by-step explanation:

Given that,

x = -4

f(x)=x² - 4x +6

so,

f(-4)= (-4)² - 4 . (-4) +6

=16 +16 +6

= 38

4 0

3 years ago

Read 2 more answers

Change equation to slope intercept form 2x-3y=15

meriva

Tex]y= \frac{2}{3}x-5 [/tex]

3 0

3 years ago

A stereo costs $418.70, including 6% sales tax. How much was the sales tax itself?

gulaghasi [49]

Answer:

25.12

Step-by-step explanation:

3 0

2 years ago

Orlov [11]

lengths are in ratio 1:3
areas are in ratio
1 : 3² = 1: 9
area of ADG = 9 x 42 = 378

8 0

3 years ago