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Blababa [14]
2 years ago
11

Calculate the current flowing if a charge of 36 kilocoulombs flows in 1 hour.

Physics
1 answer:
o-na [289]2 years ago
6 0

Answer:

Current = 10 Amperes.

Explanation:

Given the following dat;

Quantity of charge, Q = 36 kilocoulombs (KC) = 36 * 1000 = 36000C

Time = 1 hour to seconds = 60*60 = 3600 seconds

To find the current;

Quantity of charge = current * time

Substituting in the equation

36000 = current * 3600

Current = 36000/3600

Current = 10 Amperes.

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A steel cable with Cross Sectional Area 3.00cm² has an elastic limit of 2.40 x 10^8pascals. Find the maximum upward acceleration
bazaltina [42]

Answer:

Stress = F / A       force per unit area

A = 3.00 cm^2 = 3 E-4  m^2

F = 2.4E8 N/m^2 * 3E-4 m^2 = 7.2E4 N    max force applied

F/3 = 2.4E4 N  if force not to exceed limit   (= f)

f = M a

a = 2.4 E4 N / 1.2 E3 kg = 20 m / s^2      about 2 g

3 0
3 years ago
Write 200m and 2 ×10^4m in km<br><br><br>write 5000ms and 5×10^7ms in seconds
WINSTONCH [101]

Answer:

a) 20.2 kilometers

b)50 005 seconds

Explanation:

5 0
3 years ago
Identify the conditions for an elastic collision in a closed system. Check all that apply.
s344n2d4d5 [400]

Answer:

In an elastic collision:

  • There is no external net force acting. Thus, Momentum before and after collision is equal. Momentum remains conserved.
  • Total energy always remains conserved as energy cannot be created nor destroyed. It can change from one form to another.
  • There is no lost due to friction in elastic collision. So the kinetic energy is also conserved.
  • Velocities may change after collision. If the masses are equal, the velocities interchange.

When one object is stationary:

Final velocity of object 1:

v₁ = (m₁ - m₂)u₁/(m₁ +m₂)

Final velocity of object 2:

v₂ = (2 m₁ u₁)/(m₁+m₂) =

  • Objects do not stick together in elastic collision. They stick together in inelastic collision.
  • One object may be stationary before the elastic collision.

Thus, conditions for an elastic collision:

  • Energy is conserved.
  • Velocities may change.
  • Momentum is conserved.
  • Kinetic energy is conserved.
  • One object may be stationary before the elastic collision.
7 0
3 years ago
Read 2 more answers
Running is probably the simplest individual sport for promoting both health-related and skill-related fitness.
Tamiku [17]

Answer:

Running is probably the simplest individual sport for promoting both health-related and skill-related fitness. Fencing is often referred to as "mental chess" because it requires dexterity, endurance, and discipline. Individual sports require the coach to make all of the decisions for the athlete.

8 0
2 years ago
Mountain Airlines has annual operating revenues of less than $75 million with hubs in Denver and Salt Lake City. This airline wo
Vladimir79 [104]

Answer:

Regional carrier                  

Explanation:

Like in many countries, in United States, the airlines are either privately owned or publicly owned. In the United States, airlines are categorized in to major airline carriers, national airline carriers and regional airline carriers by the revenue it generates.

Accordingly, if an airline generates revenue more than 1 billion dollar in a year, it falls in the Major Airline carriers category.

It the revenue generated by the airline is within the range of $100 million to $1 billion, then it is called National airline carriers.

However, if the revenue is less than 100 million dollar for a year, then that airline is called a Regional airline carrier.

In the context, as the revenue generated by the Mountain Airlines is less than  75 million dollar, it is called Regional carrier.

Hence, the answer is --- Regional carrier                  

5 0
3 years ago
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