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katrin [286]
4 years ago
8

The mass in a pendulum clock completes one complete swing in 1.00 s . what is the length of the rod?

Mathematics
1 answer:
solniwko [45]4 years ago
3 0
The period of oscillation of a pendulum is
T=2 \pi  \sqrt{ \frac{L}{g} }
Where L is the length of the pendulum and g=9.81 m/s^2 the gravitational acceleration.
Re-arranging the formula and using T=1.0 s, we find the length of the pendulum:
L= \frac{T^2g}{4 \pi^2}=0.25 m
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Simplify 4x(3x-7)-19x^2)-19x^2
Sedbober [7]
The answer for this problem is
: -7(x^2+4)
3 0
4 years ago
Jennifer buys a 2-liter bottle of apple juice and a 3-liter bottle of orange juice at the market. How many deciliters of juice d
creativ13 [48]

Answer:

50 deciliters

Step-by-step explanation:

Given that,

Jennifer buys a 2-liter bottle of apple juice and a 3-liter bottle of orange juice at the market.

Total = 2 L bottle of apple juice + 3 L bottle of orange juice

= 5 L

We need to find how many deciliters of juice does Jennifer buy in all.

Since, 1 L = 10 Deciliter

5 L = 50 Deciliter

So, she will buy 50 deciliters of juice.

5 0
3 years ago
Need help as fast as possible please I will mark BRAINLIST only for correct answers :) Thank you!
zavuch27 [327]

Answer:

a

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
An online furniture store sells chairs for $150 each and tables for $550 each. Every day, the store can ship a maximum of 40 pie
Katen [24]

Answer:

minimum of 13 chairs must be sold to reach a target of $6500

and a max of 20 chairs can be solved.

Step-by-step explanation:

Given that:

Price of chair = $150

Price of table = $400

Let the number of chairs be denoted by c and tables by t,

According to given condition:

t + c = 30 ----------- eq1

t(150) + c(400) = 6500 ------ eq2

Given that:

10 tables were sold so:

t = 10

Putting in eq1

c = 20 (max)

As the minimum target is $6500 so from eq2

10(150) + 400c = 6500

400c = 6500 - 1500

400c = 5000

c = 5000/400

c = 12.5

by rounding off

c = 13

So a minimum of 13 chairs must be sold to reach a target of $6500

i hope it will help you! mark me as brainliest pls

§ALEX§

6 0
3 years ago
The ages of the 32 recruits in police academy are normally distributed with a mean of 27 with a standard deviation of 2. What is
aksik [14]
Since it's a sample size, we use x, as the mean and s= standard deviation
            _
Given:  x =27, s = 2 and total sample = 32.
Probability that a recruit is at least 31 years old?

Let's calculate the Z score :
              _
         X - x              31 - 27
Z = ----------- → Z = -------- → Z = 2 (now look up in the Z score table,
           s                      2


Area (Z=2) =0.9772 , but Z ≥ 2  (at least) , then :
Area (Z≥2) = Area (Z≤ - 2)  = 0.0228

P(≥31)= 0.0228
7 0
3 years ago
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