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
o-na [289]
3 years ago
11

A scientific law is a statement of fact that describes an action or set of actions. Laws are accepted as fact because they are a

lways observed to be true. Examples of scientific laws are Newton's laws of motion. These laws describe the motion of moving objects.
Give an example of a scientific law have you studied or heard of.
Physics
1 answer:
denis23 [38]3 years ago
7 0

Answer: Newton’s law of universal gravitation

Explanation: Apèx

You might be interested in
the strength s of a rectangular wooden beam is proportional to its width and the cube of is septh. If the beam is to be cut from
babymother [125]

Answer:

Can see it in the pic

Explanation:

Can see it in the pic

4 0
3 years ago
In many ways the Sun is an average star. What is something unique about the Sun?
Fudgin [204]
 The Sun keeps the planets in orbit, using it's own gravitational pull. IT also powers every planet, allowing plants to thrive and people to live.
3 0
4 years ago
Read 2 more answers
a) ¿En qué posición es mínima la magnitud de la fuerza sobre la masa de un sistema masa-resorte? 1) x 0, 2) x A o 3) x A. ¿Por q
Tatiana [17]

Answer:

a) the correct answer is 1 , b) x=0   F=0, a=0

x= 0.050    F= -7.5 N,  a= -15 m/s²

x= 0.150     F= 22.5 N,  a=- 45 m/s²

Explanation:

a) In a mass - spring system the force is given by the Hooke force,

          F = - k x

Analyzing this equation we see that the outside is proportional to the elongation from the equilibrium position, therefore the force is zero when the spring is in its equilibrium position

the correct answer is 1

b) we assume that the given values ​​are from the equilibrium position of the spring.

Let's calculate the force

x = 0

      F = 0

x = 0.050

      F = - 150 0.050

      F = - 7.50 N

x = 0.150

      F = - 150 0.150

      F = - 22.5 N

let's use Newton's second law to find the acceleration

      F = m a

      a = F / m

x = 0 m

      a = 0

x = 0.050 m

      a = -7.50 / 0.50

      a = - 15 m / s²

x = 0.150 m

      a = - 22.5 / 0.50

      a = - 45 m/s²

TRASLATE

a) En un sistema masa – resorte  la fuerza es dada por la fuerza de Hoke,  

          F= - k x

analizando esta ecuación vemos que la fuera es proporcional a la elongación desde la posición de equilibrio, por lo tanto la fuerza es cero cuando el resorte esta en su posición de equilibrio

la respuesta correcta es  1

b)suponemos que los valores dados son desde la posición de equilibrio del resorte.

Calculemos la fuerza  

x=0  

              F= 0

x=0.050  

              F = - 150 0.050

              F= - 7.50 N

x= 0.150  

                F= - 150 0.150

                F= - 22.5 N

usemos la segunda ley de Newton para encontrar la aceleración

          F = m a

          a = F/m

x =0  m

        a = 0

x= 0.050 m

         a = -7.50/ 0.50

          a =- 15 m/s²

x= 0.150 m

          a= - 22.5 / 0.50

          a= - 45 m/s²

7 0
4 years ago
g From the following choices, select the one correct statement: a. Ultraviolet light has a shorter wavelength than infrared ligh
Sati [7]

Answer:

Ultraviolet light has a shorter wavelength than infrared light.

Explanation:

Electromagnetic waves are waves that does nor require material medium for their propagation. Example of Electromagnetic waves are classified according to the acronym RIVUXG. They decrease in wavelength and increase in frequency from Radiowaves to Gamma ray.

R is the Radio waves

U - ultraviolet ray

V - Visible light (ROYGBIV){Red, Orange, Yellow, Green, Blue, Indigo and Violet}

Note that the visible light also decrease in wavelength from red to indigo, therefore red will have longer wavelength compare to blue light.

I - Infrared rays

X - X ray

G - Gamma ray

Based on the above conclusion, it can be inferred that Ultraviolet light has a shorter wavelength than infrared light since Infrared rays comes before the infrared light in the electromagnetic spectrum.

4 0
3 years ago
A 65 kg students is walking on a slackline, a length of webbing stretched between two trees. the line stretches and sags so that
polet [3.4K]

Answer : Tension in the line = 936.7 N

Explanation :

It is given that,

Mass of student, m = 65 kg

The angle between slackline and horizontal, \theta=20^0

The two forces that acts are :

(i) Tension

(ii) Weight

So, from the figure it is clear that :

mg=2T\ sin\ \theta

T=\dfrac{mg}{2\ sin\theta}

T=\dfrac{65\ kg\times 9.8\ m/s^2}{2(sin\ 20)}

T=936.7\ N

Hence, this is the required solution.

5 0
3 years ago
Read 2 more answers
Other questions:
  • An internal combustion engine uses fuel, of energy content 44.4 MJ/kg, at a rate of 5kg/h. If the efficiency is 28%, determine t
    12·1 answer
  • Which component can assist in a safe stop in the event of a power outage in a pneumatic system?
    12·1 answer
  • A scientists is trying to decide whether an organism is unicellular or multicellular which information would help the scientist
    15·1 answer
  • An elevator cable breaks when a 925-kg elevator is 28.5 m above the top of a huge spring Ak = 8.00 * 104 N????mB at the bottom o
    14·2 answers
  • In which chemical equation is the number of atoms in the reactants the same as the number of atoms in the products?
    7·2 answers
  • Why does psychics need a electrical current
    7·1 answer
  • What is the mass of a stone moving at a speed of
    7·2 answers
  • An industrial overhead door has a chain and sprocket system designed to reduce the force needed by an operator to open and close
    10·1 answer
  • Dennis throws a volleyball up in the air. It reaches its maximum height 1.1s later. We can ignore air resistance. What was the v
    12·1 answer
  • Did you complete today’s physical activity, as outlined in the Fitness Plan?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!