<span>A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum. Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave.</span>
Answer:
the rate of heat transfer after the system achieves steady state is -3.36 kW
Explanation:
Given the data in the question;
mass of water m = 50 kg
N = 300 rpm
Torque T = 0.1 kNm
V = 110 V
I = 2 A
Electric work supplied W₁ = PV = 2 × 110 = 220 W = 0.22 kW
Now, work supplied by paddle wheel W₂ is;
W₂ = 2πNT/60
W₂ = (2π × 0.1 × 300) / 60
W₂ = 188.495559 / 60
W₂ = 3.14 kW
So the total work will be;
W = 0.22 + 3.14
W = 3.36 kW
Hence total work done on the system is 3.36 kW.
At steady state, the properties of the system does not change so the heat transfer will be 3.36 KW.
The heat will be rejected by the system so the sign of heat will be negative.
i.e Q = -3.36 kW
Therefore, the rate of heat transfer after the system achieves steady state is -3.36 kW
c. Adipose tissue
Explanation:
The type of tissue that most likely will prevent a kidney from floating is an adipose tissue.
- Kidney floating is a rare condition in which the kidney is out of position.
- It is a rare condition in which the kidney drops to the pelvis when they stand up.
- The condition is medically known as nephroptosis.
- It is usually caused when the ligaments attaching the kidney to the body weakens.
- Each kidney is held in place by the renia fascia and is surrounded by the adipose tissues.
Learn more:
Kidney brainly.com/question/9111691
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<span>6.5 m/s
An object's momentum is its speed (m/s) multiplied by its mass(kg).
initial momentum of target = 0.3kg x 2.4m/s = 0.72
initial momentum of arrow = 0.0225kg x 38.5m/s = 0.86625
resulting momentum of arrow is 0.86625 - 0.72 = 0.14625
momentum /mass = speed
so 0.14625 /0.0225 = 6.5 m/s</span>
Answer:
A
C
D
B
Explanation.
At point A The body is at rest so k.E is zero but the height is maximum so that p.E is max.