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
Leviafan [203]
2 years ago
13

How is light used to make other form of transportations safer

Physics
1 answer:
Rzqust [24]2 years ago
7 0
It makes it easier to see in dark places
You might be interested in
Find the velocity, acceleration, and speed of a particle with the given position function. r(t = t2i 6tj 4 ln t k
artcher [175]
1st derivative gives velocity;
d r(t)/ dt = 2t i + 6 j + 4/t k

2nd derivative gives acceleration;
d^2 r(t)/ dt^2 = 2 i - 4/ t^2

Speed ;
Square root of (4 t^2 + 36 + 16/ t^2)

For a given time, like 2 seconds, t will be 2. And answer of speed will be scalar.
6 0
3 years ago
1) How is the temperature of a gas related to the kinetic energy of its particles?
dlinn [17]
The average kinetic energy of a gas particle is directly proportional to thetemperature. An increase intemperature increases the speed in which the gas molecules move. Allgases at a given temperature have the same average kinetic energy. Lightergas molecules move faster than heavier molecules.
6 0
3 years ago
1. Calcular la masa de mercurio que pasó de 30 °C hasta 120 °C y absorbió 4400 cal. Calor específico del
timofeeve [1]

Answer:

Masa, m = 0.088 kg

Explanation:

Given the following data;

Temperatura inicial = 30°C

Temperatura final = 120°C

Capacidad calorífica específica = 138J/kg.K

Calor absorbido, Q = 4400 cal.

Para encontrar la masa;

La capacidad calorífica viene dada por la fórmula;

Q = mct

Dónde;

Q representa la capacidad calorífica o la cantidad de calor.

m representa la masa de un objeto.

c representa la capacidad calorífica específica del agua.

dt representa el cambio de temperatura.

dt = T2 - T1

dt = 120 - 30

dt = 90°C to kelvin = 273 + 90 = 363K

Sustituyendo en la fórmula, tenemos;

4400 = m*138*363

4400 = 50094m

m = \frac {4400}{50094}

Masa, m = 0.088 kg

7 0
2 years ago
A B-52 bomber jet flies at a horizontal velocity of 286.2 m/s and at an altitude of 7500 m above the ground.
kykrilka [37]

Answer:

you need to divide 7500/286.2

3 0
2 years ago
What is your average speed if you walk 2 kilometers in 20minutes
goldenfox [79]

Answer:

12 km/hr

Explanation:

Speed= Distance/Time

3 0
2 years ago
Read 2 more answers
Other questions:
  • What is the variable that is manipulated by the experimenter during an experiment called
    14·1 answer
  • At a baseball game, you are in the cheap seats and far from the batter. You see the ball moving before you hear the sound of the
    14·1 answer
  • The terminal velocity of a person falling in air depends upon the weight and the area of the person facing the fluid.
    5·1 answer
  • A 2.00-kg object is attached to a spring and placed on a frictionless, horizontal surface. A horizontal force of 20.0N is requir
    11·1 answer
  • Which of the following are likely to form a covalent bond?
    15·2 answers
  • While practicing the trumpet you notice that every time you play a particular note a window in the room rattles. How can you exp
    8·1 answer
  • Suppose you place a ball in the middle of a wagon, and then accelerate the wagon forward. Describe the motion of the ball relati
    12·2 answers
  • A basketball is thrown horizontally with an initial speed of
    10·1 answer
  • Six members of a synchronized swim team wear earplugs to protect themselves against water pressure at depths, but they can still
    5·1 answer
  • What kind of magnets will attract
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!