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Evgen [1.6K]
3 years ago
13

A flower pot weighing 3 newtons is sitting on a windowsill 10 meters from the ground what is its potential energy

Mathematics
1 answer:
krek1111 [17]3 years ago
5 0

Answer:

30 J

Step-by-step explanation:

W = mg = 3 N

h = 10 m

Potential Energy = mgh = 3*10 = 30 J

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An electronics company makes communication devices for military contracts. The company just completed two contracts. The navy co
adelina 88 [10]

Answer:

Workers of army contract were more productive.

Step-by-step explanation:

To determine on which contract the workers were more productive compute the work done per hour by the workers for both contracts.

  • <u>Navy Contract</u>:

Number of devices = 2,300

Number of workers = 25

Number of weeks = 2 weeks

Number of hours per week = 40

The number of hours it took 25 workers to produce 2300 devices is =

=25\times2\times40\\=2000\ hours

Then number of devices produced in 1 hour is = \frac{2300}{2000}= 1.15\ devices\ per\ hour

  • <u>Army Contract</u>:

Number of devices = 5,500

Number of workers = 35

Number of weeks = 3 weeks

Number of hours per week = 40

The number of hours it took 35 workers to produce 5500 devices is ==35\times3\times40\\=4200\ hours

Then number of devices produced in 1 hour is = \frac{5500}{4200}= 1.31\ devices\ per\ hour

The workers for the army contract are more productive since they produce 1.31 devices per hour whereas the workers for navy contract produces 1.15 devices per hour.

4 0
3 years ago
If a university wants to maintain a 14:1 ratio between students and teachers, how many teachers would be needed to accommodate 8
kolezko [41]
The answer is C. 64 teachers. 

14 x 64= 896 
so 1 x 64= 64
4 0
3 years ago
Read 2 more answers
tom put 18 gallons of mid grade gas in his truck and filled up his empty five gallon gas can with regular gas for his lawnmower
k0ka [10]

Answer:

Step-by-step explanation:

Let price of milgrade gas be x and price of lawnmower gas be y.

18x + 5y=59.51

14x+y=39.75

Isolate one variable and substitute to solve for other variable.

8 0
3 years ago
How do you find the area of a triangle???? PLEASE HELP
irinina [24]

Answer:

find the base 1st then Height.You should be able to get your Area after doing those steps correctly

3 0
3 years ago
I got shocked when I entered my school bus last Thursday. It was full of lizards and snakes. There were 214 lizards and snakes o
s344n2d4d5 [400]

Answer:

x=lizards y=snakes

x+36=y x+y=214

x + x +36=214

2x=214-36

2x/2=178/2

x=89lizards y=89+36=125snakes

Step-by-step explanation:

f= female sankes m=male snakes

m+31=f

m+f=125

m+m+31=125

2m=125-31

2m/2=94/2

m=47 male snakes

f=47+31=78female snakes

7 0
3 years ago
Read 2 more answers
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