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Alisiya [41]
3 years ago
14

What does a step-up transformer increase? A. power B. energy C. force D. voltage

Physics
2 answers:
PIT_PIT [208]3 years ago
8 0

Answer:

The answer is d.voltage

ZanzabumX [31]3 years ago
7 0
The answer is D voltage 
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Water initially at 200 kPa and 300°C is contained in a piston–cylinder device fitted with stops. The water is allowed to cool at
netineya [11]

Answer:

Δu=1300kJ/kg  

Explanation:

Energy at the initial state

p_{1}=200kPa\\t_{1}=300^{o}\\u_{1}=2808.8kJ/kg(tableA-5)

Is saturated vapor at initial pressure we have

p_{2}=200kPa\\x_{2}=1(stat.vapor)\\v_{2}=0.8858m^3/kg(tableA-5)

Process 2-3 is a constant volume process

p_{3}=100kPa\\v_{3}=v_{2}=0.8858m^{3}/kg\\u_{3}=1508.6kJ/kg(tableA-5)

The overall in internal energy

Δu=u₁-u₃

We replace the values in equation

Δu=u₁-u₃

=2808.8kJ/kg-1508.6kJ/kg\\=1300kJ/kg

Δu=1300kJ/kg  

3 0
3 years ago
From what does oil form?
Akimi4 [234]
C dinosaurs. Once they break down and get pressurized they turn to oil
6 0
3 years ago
Using the videos and websites provided, or other online resources you find, and analyze the events of the Biosphere 2 story and
Andru [333]
Your answer has to be B
4 0
3 years ago
Read 2 more answers
A mass m is attached to an ideal massless spring with spring constant k. In experiment 1 the mass oscillates with amplitude a, a
Trava [24]

Time period remains the same in both the experiment as change in amplitude does not affect time period.

What are the factors on which time period depends in SHM?

Time period is given by:

T=2\pi \sqrt{\frac{m}{k} }

where,

T = time period

m = mass

k = spring constant

In a straightforward harmonic motion, we see from the preceding formula that the time period depends only on the object's mass and spring constant (SHM). The time period will adjust to any variations in the object's mass or the spring constant.

What is Spring Constant?

A spring's "spring constant" is a property that quantifies the relationship between the force acting on the spring and the displacement it produces. In other words, it characterises a spring's stiffness and the extent of its range of motion.

Learn more about SHM here:

brainly.com/question/20885248

#SPJ4

6 0
1 year ago
If there no motion then there is no force acting? true or false
goblinko [34]

Answer:

false.

Explanation:

If a object is at rest it does not means that no force is acting on the object.

There can be a scenario that all to forces acting on the object balance each other and the net force required for motion is zero.

So, the given statement is false.

4 0
3 years ago
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