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
jonny [76]
3 years ago
6

Una esfera de radio 0.4m tiene una masa de 300kg, se desea sumergir en agua para saber si flota o no. En este ejercicio use la d

ensidad del agua en kg/m^3.
Physics
1 answer:
iragen [17]3 years ago
4 0

Answer:

La esfera no flotará pero se hundirá cuando se coloque en el agua porque su densidad es mayor que la del agua.

Explanation:

De la pregunta anterior, se obtuvieron los siguientes datos:

Radio (r) de la esfera = 0,4 m

Masa de esfera = 300 Kg

Densidad del agua = 1000 Kg / m³

A continuación, determinaremos el volumen de la esfera. Esto se puede obtener de la siguiente manera:

Radio (r) de la esfera = 0,4 m

Pi (π) = 3,14

Volumen (V) de la esfera =?

V = 4/3 πr³

V = 4/3 × 3,14 × 0,4³

V = 12,56 / 3 × 0,064

V = 0,27 m³

A continuación, determinaremos la densidad de la esfera. Esto se puede obtener como se ilustra a continuación:

Masa de esfera = 300 Kg

Volumen de esfera = 0,27 m³

Densidad de esfera =?

Densidad = masa / volumen

Densidad de la esfera = 300 / 0,27

Densidad de la esfera = 1111,11 Kg / m³

Comparando la densidad del agua y la de la esfera.

Sustancia >>>>>>> Densidad

Agua >>>>>>>>>>> 1000 Kg / m³

Esfera >>>>>>>>>> 1111,11 Kg / m³

De la ilustración anterior, podemos ver que la densidad de la esfera es mayor que la del agua.

Por lo tanto, la esfera no flotará sino que se hundirá cuando se coloque en el agua porque su densidad es mayor que la del agua.

You might be interested in
If a magnet repels a metal object what can you say about the pole of the magnet and the pole of the object?
sleet_krkn [62]
Poles are the same D is the right answer
7 0
3 years ago
Read 2 more answers
The half-life of element X is 20 years. If there are 48 g initially a) How much is there after 80 years
Gre4nikov [31]

Answer:

After 80 years there will be 3 g of element X remaining

Explanation:

Given;

the half life of element X = 20 year

initial mass of element X = 48 g

a) How much is there after 80 years

0 year --------------------------> 48 g

20 years -----------------------> (48g / 2) = 24 g

40 years ------------------------> 12 g

60 years ------------------------> 6 g

80 years --------------------------> 3 g

Therefore, after 80 years there will be 3 g of element X remaining.

3 0
4 years ago
Suppose a 500 mb chart valid today at 12 Z indicates a large trough over the eastern US and a large ridge over the western US. A
Zinaida [17]

Answer:

An aircraft, flying in the vicinity of 18,000 ft altitude from west to east over the US at 12 Z today, will __LOSE___ altitude if the altimeter is not corrected

7 0
3 years ago
Which of the following lists are all renewable resources?
earnstyle [38]

The answer is A.

Hydroelectric, which is usually generating electricity through use of a dam.

Solar, energy from the Sun.

Biomass, organic material formed from plant matter.

3 0
3 years ago
Woman pulls a 6.87 kg suitcase,
GenaCL600 [577]

Answer:

2.24 m/s

Explanation:

resolving force of 29.2 N in x component

Fx = 29.2 cos 57.7

Fx = 15.6N

as force of friction is 12.7 N hence net force which produces acceleration is

15.6-12.7=2.9 N

by Newton 's law a=f/m

a= 2.9/6.87=0.422 m/s^2

now equation of motion is

v^2= U^2+2as

 = 0^2+2(.422)(5.93)

v^2=5.00

v=2.24 m/s

4 0
3 years ago
Other questions:
  • A student hypothesizes that a goldfish will be more active in a bowl that has red gravel than in a bowl with grey gravel. To tes
    13·2 answers
  • Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 3 s. What is your acceleration? i need the answer an
    8·1 answer
  • A skydiver of mass m jumps from a hot air balloon and falls a distance d before reaching a terminal velocity of magnitude v . As
    6·1 answer
  • A boat moves 60 kilometers east from point A to point B. There, it reverses direction and travels another 45 kilometers toward p
    9·1 answer
  • Dos cargas con 2.8(×10-6) C y 7.5(×10-6) C respectivamente se atraen con una fuerza de 10 [N], ¿A qué distancia se encuentran se
    12·1 answer
  • The first electric generators used direct current, so they needed to be reversed manually on a regular basis in order to work pr
    10·1 answer
  • Why can making observations be a very good way to come up with a scientific question?
    12·1 answer
  • 49. \ A rectangular plate is rotating with a constant angular speed about an axis that passes perpendicularly through one corner
    11·1 answer
  • The generation of a magnetic field by an electric current is___ .
    13·1 answer
  • In Fig. 2-2, what is the acceleration at 1.0 s?velocity (m/s)2010time (s)02.010physics graph 2- 10-20Figure 2-2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!