I presume that the engine operates under a Carnot cycle, which allows for maximum efficiency.
Assuming this, the Carnot cycle's efficiency can be expressed as
where
represents the temperature of the cold sink
and
signifies the temperature of the heat source.
In this scenario, the cold sink temperature is 313 K, while the heat source temperature is 425 K; thus, we can calculate the engine's efficiency as
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The height from which the glasses fell is s = 23.72 m and the impact speed is v = 21.56 m/s². Explanation: Using the time taken to hit the ground (t) = 2.2 seconds, we can apply the formula s = u t + 0.5 g t² with initial velocity u = 0 m/s and g = 9.8 m/s²: s = 0 + 0.5 × 9.8 × 2.2², resulting in s = 23.72 m. For the impact velocity, we use the equation v = √(2gh), yielding v = √(2 × 9.8 × 23.72) = √464.912, leading to v = 21.56 m/s².
Answer: A) 2 B) 4 C) 1
Explanation:
The electric field associated with a parallel-plate capacitor is defined as:
A) E=Q/(L^2 * ε0); if we double the charge, the resultant electric field becomes twice as strong as its initial value.
B) Referring to the earlier electric field expression, if the plate size is doubled, the final electric field will be a quarter of the original strength.
C) If the separation distance between the plates is increased twofold, the resulting electric field remains unchanged from its initial state.
Answer:
Explanation:
The measurement of pressure is indicated as 
where p denotes the pressure, 
signifies density, and h represents height
Given values include pressure 
, gravity's acceleration 
, and height =1.163 m
Answer:
The rotational angular speed is measured at 1.34 rad/s.
Explanation:
Considering the following parameters,
Length = 3.40 m
Distance = 5.90 m
Angle = 45.0°
We are tasked with finding the angular speed of rotation
Using the balance equation
Horizontal component
Vertical component
Substituting the tension value
Substituting the value into the equation
Thus, the angular speed of rotation computes to 1.34 rad/s.
