A 6 m tall statue has his base at 2 m above eye level. At what...
A 6 m tall statue has his base at 2 m above eye level. At what
distance of the statue does one have to stand to achieve the
maximum angle sustained from the eye to the top of the statue.
2) An Elevator with a mass of 2500
Kg rests at a level 10 m above the base of an elevator shaft. It is
raised to 100 m above the base of shaft, where the cable holding it
breaks. The elevator falls freely to the base of the shaft and
strikes a strong spring. The spring is designed to bring the
elevator to rest and to hold the elevator at the position of
maximum spring compression. Assuming the entire process...
A 6.0-ft-tall girl stands on level ground. The sun is 23 ∘ above
the horizon.
How long is her shadow?
Express your answer using two significant figures.
b) A 5.0-m-wide swimming pool is filled to the top. The bottom
of the pool becomes completely shaded in the afternoon when the sun
is 25 ∘above the horizon.
How deep is the pool?
Express your answer using two significant figures.
You are standing at a base of a Ferris Wheel which is 4 m above
ground while your friend is riding. The Ferris Wheel is 8m in
diameter. Describe how the shape of the sine curve models the
distance your friend is to the platform you are on. Identify the
function that will model this situation as well as a function that
will model the if we measure his distance to the ground. In your
explanation use the following terms:...
Mount Alberta in Jasper National Park, Alberta, has an elevation
of 3620 m above sea level. Determine the atmospheric pressure at
the top of Mount Alberta, assuming a sea level pressure of 101 kPa
and a temperature of 12°C. (Consider that the average molar mass of
air is 29 g/mol.)
A projectile is fired from the 45 m above the ground (the zero
level) with an initial velocity of 285 m/s at an angle of 43.5
degrees above the horizontal;
a. How long will this projectile be in the air?
b. How high will this projectile be at the highest point of
its trajectory?
c. What will be the range of this projectile?
d. What will be the velocity of this projectile 28.0 seconds
after it has been fired?
e....
To strengthen his arm and chest muscles, an 77.0 kg athlete 2.00
m tall is doing a series of push-ups as shown in the figure below
(Figure 1) . His center of mass is 1.20 m from the bottom of his
feet, and the centers of his palms are 30.0 cm from the top of his
head. Find the force that the floor exerts on each of his feet and
on each hand, assuming that both feet exert the same...
Koko is a trained endurance runner who is 28 years old
and 1.77 m tall. His pulmonary function test gives you the
following results: FVC = 5.04 L; FEV1 = 4.55 L. What does the ratio
of these two variables tell you? How do Koko’s values compared to a
non-trained individual?