Initial speed of drop is given by
total displacement of the object from top
acceleration due to gravity
so the final speed is given by kinematics equation
<em>so if will hit the surface at speed 200.7 ft/s</em>
Atmospheric pressure is commonly measured with a barometer. In a barometer, a column of mercury in a glass tube rises or falls as the weight of the atmosphere changes. ... One atmosphere is 1,013 millibars, or 760 millimeters (29.92 inches) of mercury. Atmospheric pressure drops as altitude increases
Isn't that just normal body tissue?
Answer:
A. 40 cm
Explanation:
For a curved mirror, the focal length is twice the radius of curvature of the mirror. In formula:
where
f is the focal length
R is the radius of curvature
The concave mirror in this problem has a radius of curvature of
R = 20 cm
so, its focal length is
Here average speed for given motion is defined as ratio of total distance covered by total time
so here we can say
here total distance can be calculated by formula
distance = speed * time
here given that its average speed is v = 2.05 m/s
for first half let the time is "t " seconds and the speed for that is 2.01 m/s
and for next half time will be same and it is "t " seconds again
so by plug in all data in above equation we have
so its speed for next half must be 2.09 m/s