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
ehidna [41]
3 years ago
9

4.   Which of the following is the term used to describe a body's resistance to a change in motion? 

Physics
1 answer:
Alborosie3 years ago
5 0
Inertia ..................
You might be interested in
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake.
ArbitrLikvidat [17]

Answer:

L = 499 m

Explanation:

  • If we assume that the speed of sound is constant, that travels along a straight line, and that the echo is instantaneous, we can find the total distance travelled by the sound, as follows, just applying the definition of average velocity:

       \Delta x = v_{s} * t = 343 m/s* 2.91 s = 998 m

  • If we assume that the time needed to reach to the cliff, is the same used for the return travel, the length of the lake will be exactly half of the total distance calculated:

        l_{lake} = \frac{\Delta x}{2} = \frac{998m}{2} = 499 m

  • The length of the lake is 499 m.
8 0
3 years ago
Copper is a metal commonly used for electrical wiring in houses. Which metal conducts electricity better than copper at 20°C?
jek_recluse [69]
The correct answer is silver metal.
Conductivity measures the ability of a material or a metal to transmit energy, conductivity may be electrical, thermal or acoustical conductivity. The most electrical conductive element is silver, followed by copper and Gold. Silver also has the highest thermal conductivity as compare to any element. However, copper and Gold are more often used in electrical applications since copper is less expensive and gold has a much higher corrosion resistance. 
6 0
3 years ago
Se deja caer una moneda desde cierta altura. Si se desprecian los efectos del aire, ¿cómo varía la fuerza neta sobre la moneda a
forsale [732]

Answer:

Ok, primero pensemos en una situación normal.

La moneda comienza a caer, pero la moneda esta inmersa en una sustancia, el aire. El aire comienza a aplicar una resistencia al movimiento de la moneda, y esta resistencia incremente a medida que la velocidad de la moneda incremente. Llega un punto en el que esta nueva fuerza es igual a la fuerza gravitatoria, y en sentido opuesto, lo que causa que la fuerza neta sea 0, y que la moneda caiga a velocidad constante hasta que esta impacta con el suelo.

Ahora, en este caso tenemos que ignorar los efectos del aire, entonces no hay ninguna fuerza que se oponga a la fuerza gravitatoria, entonces la fuerza neta no cambia a medida que cae (La fuerza neta cambia cuando la moneda impacta el suelo).

También se puede analizar el caso en el que, como la fuerza gravitatoria decrece con el radio al cuadrado, a medida que la moneda cae, la fuerza gravitatoria incrementa. El tema es que en para estas dimensiones, ese cambio en la fuerza gravitacional es imperceptible,

3 0
3 years ago
1. Which statement is true of culture?
dlinn [17]
I think it is either A or B. I’m mostly leaning towards B.
6 0
3 years ago
Only using 10 ohm resistors come up with a way to make a battery catch fire
Margaret [11]
They catch fire with the ohm with the light from the gas with the heat and gas from radiation elects from the chemicals mixed
6 0
3 years ago
Other questions:
  • Which of the following statements are true? A solid can diffuse into a liquid, but a solid cannot diffuse into another solid. A
    7·2 answers
  • The formula to calculate velocity is
    11·1 answer
  • An iron ball and an aluminum ball of mass 100 g each are heated to the same temperature and then cooled to a temperature of 20°
    13·2 answers
  • Which of these is a benefit of social networking ?
    11·1 answer
  • What can you use to determine whether the SATA port no which you are connecting the drive will also run at 6.0Gbps?
    5·1 answer
  • Point charges 1 mC and −2 mC are located at (3, 2, −1) and (−1, −1, 4), respectively. Calculate the electric force on a 10 nC ch
    7·2 answers
  • What is the easiest way to add energy to matter? Heating it Cooling it Decreasing pressure Decreasing temperature
    8·2 answers
  • What happens to the acceleration of a ball as it is dropped off a clift?
    6·1 answer
  • A baseball sits motionless near first base on a baseball diamond. What statement
    8·1 answer
  • PLEASE HELPPPPPPPPPPPPP
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!