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
myrzilka [38]
3 years ago
14

What your life would have been without sand and light. (minimum of 100 words)

Physics
1 answer:
stepladder [879]3 years ago
3 0

Answer:

Without light, we can't see. So life would have been harder-much harder.

Explanation:

Our eyes take in light to see- in the darkness they take in as much light as possible, and when it's bright, they take in as little as possible. They do this by changing the size of the pupil.

If there is no light, people cannot see. So how would we know where we are going?

Here's how: we would evolve over time to use our other senses ( smell, taste, touch and hearing) better, like animals with bad eyesight.

Our senses of smell and hearing would play the most important role.

You might be interested in
Please help I would appreciate it
jek_recluse [69]

Answer:

3.176hours

Explanation:

270/85=3.126 hours DISTANCE / SPEED = TIME

6 0
3 years ago
1-¿Que tipo de energía usa en su hogar para el alumbrado , la calefacción y artículos de entretenían, entre otros ? 2-¿ de que m
Harman [31]

Answer:

Explanation:

1.-Energía eléctrica ( electricidad ) proveniente de una fuente AC ( es decir de corriente alterna)

2.-Hay un proveedor de servicios que lleva la energía a las comunidades en general y en particular la lleva hasta mi casa y escuela. Se define como acometida eléctrica, la infraestructura que lleva la energía desde la red de distribución al tablero principal en el abonado. La acometida puede ser aérea o subterránea, y normalmente consta de tres conductores ( de los cuales dos son calibre AWG # 8 ( dos fases ) y uno AWG # 10 ( neutro ). Esta configuración permite tener: 120 y 240 (V) en servicio en la casa y suficiente capacidad para la carga eléctrica de una casa normal

3.-Si, el tipo de corriente. En el caso de una linterna se usan "pilas" o baterías de corriente directa ( que no varia en el tiempo), en la casa la corriente es alterna de 60 ciclos por segundo de frecuencia.

4.-Si el voltaje es menor en una medida importante la ampolleta no alumbra por cuanto si por ejemplo el voltaje nominal ( o de funcionamiento es 120 V y el voltaje suministrado es 50 V ese voltaje será insuficiente para hacer funcionar el circuito). Si el voltaje es mayor dígamos 240 V la ampolleta se quema.

5.-El interruptor nos asegura la maniobra a nuestra voluntad del circuito del cual forma parte. Es decir si tengo un circuito de alumbrado ( 1 bombillo y un interruptor ) ese interruptor me permitirá apagar y encender la luz cuando yo quiera.

Los breaker son "interruptores" son dispositivos de protección para caso de sobrecargas y/o cortocircuitos

5 0
3 years ago
A metal ring 4.00 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpend
liq [111]

Answer:

a) 0.21N/C

b) counterclockwise

Explanation:

a) to find the magnitude of the electric field you can use the following formula:

\int Eds=-\frac{\Delta \Phi_B}{\Delta t}=-\frac{\Delta AB}{\Delta t}

A: area of the ring = pi*r^2

E: electric field

Ф_B: magnetic flux

In the line integral you can assume E as constant. Furthermore, you calculate the change in the magnetic flux by taking into account that the time interval is 1.12/0.21=5.33s. By replacing in the formula you obtain:

\frac{\Delta \Phi_B}{\Delta t}=\frac{A(B_f-B_i)}{5.33s}=\frac{\pi(0.04m)^2(1.12T)}{5.33}=1.056*10^{-3}W/s

E\int ds=E(2\pi r)=1.056*10^{-3}W/s\\\\E=\frac{1.056*10^{-3}W/s}{\pi(0.04m)^2}=0.21\frac{N}{C}

the magnitude if the induced electric field is 0.21N/C

b) By the Lenz's law you can conclude that the current has a direction in a counterclockwise

6 0
3 years ago
Can someone help me answer this pls I’ll give brainliest
hammer [34]

Answer: I think the answer is Non-foliated if it is wrong i am so sorry

don't forget to drop a heart.

Explanation:

6 0
4 years ago
Hooke’s law describes the linear relationship between stress and strain through Young’s modulus. Given two materials under the s
stiks02 [169]

Answer:

The material with higher modulus will stretch less than

The material with lower modulus

Explanation:

A material with a higher modulus is stiffer and has better resistance to deformation. The modulus is defined as the force per unit area required to produce a deformation or in other words the ratio of stress to strain.

E= stress/stain

Hooks law states that provided the elastic limit is not exceeded the extension e of a spring is directly proportional to the load or force attached

F=ke

Where k is the constant which gives the measure of the spring under tension

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following will cause a decrease in gas pressure in a closed container?
    15·1 answer
  • Three eyewitnesses at the scene of a car accident were asked how long the accident lasted. They responded with 11 seconds, 12 se
    6·1 answer
  • Which best describes an acid?
    9·2 answers
  • An inflated balloon was pressed against a wall after it has been rubbed with a piece of synthetic cloth. It was found that the b
    10·2 answers
  • The astronaut then measures the abundance of silicon on the new planet, obtaining the following results: Isotope Abundance. (%)M
    15·1 answer
  • A) A 12 kg object has a velocity of 37.5 m/s. What is its momentum?
    5·1 answer
  • sinong personalidad ang bumuo ng pangkat militar na tinawag na black shirts na nagsagawa ng pagpupulong ng mga grupong sosyalist
    12·1 answer
  • If a CFOC was launched and travels 65 meters and is in the air for 3 seconds, what is the launch velocity and angle?
    7·1 answer
  • Use the following table to calculate the train's average velocity during part B of the train ride.​
    14·1 answer
  • Shower thoughts...
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!