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
Harrizon [31]
4 years ago
5

What do scientists use to divide the geologic time scale?

Physics
1 answer:
dmitriy555 [2]4 years ago
3 0
The use Major changes in mineral deposits in the rock layers. 
You might be interested in
Why should we change away from using incandescent light bulbs
Maurinko [17]

They are energy inefficient

Explanation:

The main reason why we must change away from using incandescent lighting bulbs is because of their energy inefficiency.

  • Much of the power consumed is used in producing heat in an incandescent bulb.
  • Therefore, they are energy inefficient.
  • Energy saving bulbs produces less heat and they are more durable.
  • Most energy saving bulbs are typically more expensive.
  • Most incandescent bulbs are also not environmentally friendly.

Learn more:

Electric bulb brainly.com/question/10421964

#learnwithBrainly

8 0
3 years ago
How much work is done if you push a box 200 meters with a force of 35 newtons answer?
VashaNatasha [74]
Work = force × distance
= 35 N × 200 m
= 7000 J
4 0
3 years ago
A spacecraft is fueled using hydrazine (N2H4; molecular weight of 32 grams per mole [g/mol]) and carries 1640 kilograms [kg] of
Sauron [17]

Answer:

The value is t = 689.029 \  hours

Explanation:

From the question we are told that

The molar mass of hydrazine is Z =  32 g/mol = \frac{32}{1000} = 0.032 \  kg/mol

The initial temperature is T_i  =  -186 ^o F = (-186-32) *\frac{5}{9} +273.15 = 152\ K

The final temperature is T_f  =  78 ^o F = (78-32) *\frac{5}{9} +273.15 = 298.7 \ K

The specific heat capacity is c_h  =  0.099 [kJ/(mol K)] = 0.099 *10^3 J/(mol/K)

The power available is P = 300 \ W

The mass of the fuel is m =   1640 \  kg

Generally the number of moles of hydrazine present is

n  =  \frac{m}{Z}

=> n  =  \frac{1640}{= 0.032}

=> n  =  51250 \ mol

Generally the quantity of heat energy needed is mathematically represented as

Q =  n * c_h * (T_f -T_i)

=> Q =  51250  * 0.099 *10^3  * (298.7 - 152)

=> Q =  7.441516913 * 10^{8} \  J

Generally the time taken is mathematically represented as

t =  \frac{Q}{P}

=> t =  \frac{7.441516913 * 10^{8} }{300}

=> t = 2480505.6377 s

Converting to hours

t = \frac{2480505.6377}{3600}

=> t = 689.029 \  hours

6 0
3 years ago
The direction of the acceleration of an object on a(n) _______________________ path is toward the _______________________ of the
aleksandrvk [35]

Answer:

circular...center

Explanation:

Physics

8 0
3 years ago
Select the correct answer.
Effectus [21]
A. logic, would be your answer i believe!
4 0
2 years ago
Other questions:
  • Which of the following is not found in dry air?
    10·1 answer
  • A ball is released at the top of a ramp at t =0. which is the speed of the ball at t=4
    9·2 answers
  • An ideal photo-diode of unit quantum efficiency, at room temperature, is illuminated with 8 mW of radiation at 0.65 µm wavelengt
    11·1 answer
  • URGENT PHYSIC PLEASE.
    13·1 answer
  • A capacitor is constructed of two large, identical, parallel metal plates separated by a small distance d
    9·1 answer
  • The term big bang nucleosynthesis refers to the formation during the big
    6·1 answer
  • Jada was roller skating at 8 m/s with a total mass of 30 kg. Korbin gently pushed her and she increased her speed to 11 m/s. Fin
    5·1 answer
  • Eifhewfiowehfoiwehfoiwe
    12·1 answer
  • The table above lists the wavelength range, frequency range, possible uses, and hazards of the seven types of electromagnetic ra
    8·1 answer
  • This should be pretty easy i think.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!