There will be 4 forces on the phone in total.
1. gravity
2. normal force from the windshield
3. dynamic friction
4. a push from the car
The sum of all 4 forces must achieve an acceleration of 23,6 cm/s² or a total force of F = m * a = 0.1774kg * 0.236m/s² = 0.0419N.
<h3><u>Answer;</u></h3>
Cardiac enlargement:
- Left ventricular dilation (volume overload) displaces impulse down and to the left ans increases size more that one space.
-A sustained impulse with increased force and duration but no change in location occurs with left ventricular Hypertrophy and no dilation (pressure overload)
- Pulmonary emphysema which makes it non-palpable from the lung sound overriding heart sound.
<h3><u>Explanation</u>;</h3>
- Apical impulse is a point of maximal impulse; pulsation created as the left ventricle rotates against the chest wall during systole.
- When visible, it occupies the fourth or fifth intercostal space, at or inside the midclavicular line. It occurs during systole (short, normally first 1/2 of systole).
- It is normally 1 ×2 cm in size.
Answer:
c. 40200 J
Explanation:
Assume gravitational constant g = 9.8m/s2. The weight of the 2000kg vehicle is
In addition to the friction averaging at 500N, the total force is
F = 20000 + 500 = 20100 N
The work required to generate this force over a distance of 2m would be
F*s = 20500 * 2 = 40200 J
So c.40200 J is the correct answer
As per energy conservation in the reversible engine we can say
here we know that
now from above equation
now we can convert it into kW
so above is the power input to the refrigerator
now to find COP we know that
so COP of refrigerator is 2.2