1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alex41 [277]
3 years ago
11

Two children of mass 27 kg and 51 kg sit balanced on a seesaw with the pivot point located at the center of the seesaw. If the c

hildren are separated by a distance of 4 m, at what distance from the pivot point is the small child sitting in order to maintain the balance?
Physics
1 answer:
Flauer [41]3 years ago
8 0

Answer:

2.62 m

Explanation:

Let the small child sit at a distance x from the pivot.

The distance of big child from the pivot is 4 - x .

By using the concept of moments.

Clockwise moments = anticlockwise moments

27 x = 51 ( 4 - x )

27 x = 204 - 51 x

78 x = 204

x = 2.62 m

You might be interested in
As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted o
astraxan [27]

Answer:

3.6 x 10⁶ Pa

Explanation:

A = Area of the heel = 1.50 cm² = 1.50 x 10⁻⁴ m²

m = mass of the woman = 55.0 kg

g = acceleration due to gravity = 9.8 m/s²

Force of gravity on the heel is given as

F = mg

Inserting the values

F = (55) (9.8)

F = 539 N

Pressure exerted on the floor is given as

P = \frac{F}{A}

P = \frac{539}{1.5\times 10^{-4}}

P = 3.6 x 10⁶ Pa

6 0
3 years ago
How do the positions of the sun and moon affect what people do?
Verdich [7]

-- The position of the sun was originally the primary influence in determining
when people went to sleep and when they woke up.  Although it no longer
directly influences us, that pattern is so deeply ingrained in our make-up
that our behavior still largely coincides with the positions of the sun.

-- The position of the Moon was originally the primary influence in determining
the cycle of human female physiology.  Although it no longer directly influences
us, that pattern is so deeply ingrained in human make-up that the female cycle
still largely coincides with the positions of the Moon.



6 0
3 years ago
When heating food, why do you think the oven gets hot to the touch while the microwave does not?
LenKa [72]

Answer:

The oven has many different heat sources from the bottom, sides, top, etc...

The microwave only has the sides.

4 0
3 years ago
Which of the following is true about teeth in mammals? a. Only large mammals have teeth. b. All teeth in mammals look the same a
katovenus [111]
<span>c. Mammal teeth do different jobs and are different sizes and shapes</span>
4 0
3 years ago
Please need help on this
neonofarm [45]

Answer:

A.

Explanation:

Geothermal energy is heat driven within the sub-surface of the earth. Water and/or steam carry the geothermal energy to the earth surface.

6 0
3 years ago
Other questions:
  • What are you experiencing if you close your eyes and feel as if you are not moving
    15·1 answer
  • Location X is next to Location Y and they are both much colder than Location Z. Which statement is most likely true?
    11·1 answer
  • Which of the following is the best definition of a closed system?
    12·1 answer
  • 1) A car is moving to the right with the constant speed of 1.2 m/s. If the car starts
    15·1 answer
  • How would you design an experiment to condition a rabbit to salivate to the ringing of a cell phone?​
    11·1 answer
  • What is 34 + (5) × (1.2465) written with the correct number of significant figures?
    9·1 answer
  • A balloon contains 0.075 m^3 of
    13·1 answer
  • what are the four things that affect the resistance of a wire? A. length, diameter, material, and temperature B. weight, diamete
    14·1 answer
  • The equatorial diameter of venus is 7,523 miles. if a mile equals 1.609 km, what is venus's diameter in kilometers?
    11·1 answer
  • The main circuits on the system board that carry data are called the _________.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!