Power is defined as the rate of doing work or the work per unit of time. The first step to solve this problem is by calculating the work which can be determined by the equation:
W = Fd
where:
F = force exerted = ma
d = distance traveled
m = mass of object
a = acceleration
Acceleration is equivalent to the gravitational constant (9.81 m/s^2) if the force exerted has a vertical direction such as lifting.
W = Fd = mad = 63(9.81)(7) = 4326.21 Joules
Now that we have work, we can calculate power.
P = W/t = 4325.21 J / 5 seconds = 865.242 J/s or watts
Convert watts to horsepower (1 hp = 745.7 watts)
P = 865.242 watts (1hp/745.7 watts) = 1.16 hp
The right answer for the question that is being asked and shown above is that: "<span>B: 156 kPa ." </span>Marshall determines that a gas has a gage pressure of 276 kPa whats the absolute pressure of this gas <span>B: 156 kPa </span>
Answer:
Explanation:
mass of the fellow ( m ) = 66kg
acceleration of fellow a
v = u + at
4.5 = 0 + a x 2
a = 4.5 /2
= 2.25 m / s²
Net force acting on fellow in upward direction by the surface of elevator
R - mg where R is reaction force of the surface of the elevator
Applying Newton's law of motion
R - mg = ma
R = m (g +a )
= 66 x ( 9.8 + 2 )
= 778.8 N
This will be the scale reading .
Photosynthesis- produced by a producer the capture light and convert it into glucose/ carbohydrates or "food" <span />
Answer: Option C
Explanation:
To find the position of the image when an object lies in front of lens, usually three rays are used. One incident ray passes through the focus and would be parallel to the axis after refraction from the lens. Second would just pass through the optical center. Third incident ray would be parallel to the axis and would refract from the lens and pass through the focus on the right hand side. The three rays would be extended in both the directions and we would see where the three rays would intersect. That would be the position of the image.
Thus, the correct option is C.
