The period t (in seconds) of a pendulum is given by t=2πl32 , where l stands for the length (in feet) of the pendulum. if π=3.14 , and the period is 3.14 seconds, what is the length? t=2pi times the square root of l/32

The length of the pendulum is 8 units

Step-by-step explanation:

The period T (in seconds) of a pendulum is given by

.

We want to find the value of , when and .

We substitute the given values into the formula to get,

.

We divide through by 3.14 to get,

.

We divide both sides by 2, to obtain,

.

We square both sides to get,

We now multiply both sides by 32 to get,

We cancel out the common factors to get,

Hence,the length of the pendulum is 8 units

8 feet

Step-by-step explanation:

We are given the formula for the period T (in seconds) of a pendulum  by:

where L stands for the length (in feet) of the pendulum and we are to find its length if the period is 3.14 seconds.

For that, we will square everything to make the square root vanish:

Multiplying both sides by 32 to get:

Dividing both sides by :

Now substituting the given value of T to find the length L:

Therefore, the length of the pendulum is 8 feet.

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

s

step-by-step explanation: