Reflecting Rex places a mirror on the ground so he can see the top of a...
An alien from another planet has a height of 2.2 meters with one eye exactly in the middle of his body. The alien is standing 5.0 meters away from a vertical plane mirror. How far above the ground should the top of the mirror be placed so that the alien can see the top of his body?1.1 m1.65 m2.2 m2.5 m0.55 m
Vittorio needs to clean the dusty mirror hanging on the wall
before he can use it, but he would like to clean as little of the
mirror as possible.
Vittorio would like to be able to see the logo on his shirt.
Draw the incident and reflected rays showing the light from the
logo reflecting off the mirror into his eyes. The rays should meet
at the point on the mirror that needs cleaning.
Adjust the existing vectors on the...
1. A picture of a solar tower is shown below (figure 1). You can see that there are plenty of mirrors located in different positions. Each of these mirrors tracks the sun over time and project the sunlight to the tower. The tower gets very hot and the heat is used to generate electricity (or to evaporate water). To make this problem easier for you, I changed this problem to a 2D example. 4 Figure 1 Solar Tower Figure 2...
refer to photos
can seem to start on part b!
Determine the angle o so that the velocity of the car will be parallel to the slope when the car lands at the top of ramp B. ANS: b) The stunts driver felt that the set up in part (a) is too risky and decided to modify the set-up to one as shown in the figure below. He replaces ramp A with a horizontal elevation C at height H =...
1. Atall cylindrical tank, held above ground on stilts, is partially filled with water. (See top figure). The tank has a diameter, D. At time equal to zero, a hole of diameter d is poked in the bottom of the tank, where d<< D. Let z-0 correspond to the bottom of the tank. The initial fluid height is za. Had Use Bernoulli equation to assess the velocity of the fluid as it leaves the bottom of the tank as a...
1.
The reflector of a flashlight is in the shape of a parabloid of
revolution. its diameter is 8 inches and its depth is 4 inches. how
far from the vertex should the light bulb be placed so that the
rays will be reflectes parallel to the axis?
place the light bulb ? inch(es) from the vertex
2.The Cables of a suspension bridge are in the shape of a
parabola, as shown in pic below. the towers supporting the cable...
answer 8-10 please
Consider the following. A 15 foot ladder is leaning egainst o wall f the top of tdhe lodder slips don the l at a rate of 4 R/s, how fast will the foot of the ladder be mosing avay from the all at the utant that the ta? ษ b 10 feet above the ground? (See diagram below.) What information. do s this problm gatennt give, and what final answer does it ask for? de da A....
Q3
(25 pts) 3. For the cantilever beam shown below and to the left, Determine the reactions at the wall at C. Draw the shear (V) and moment (M) diagram for the beam and label the appropriate values. For the given cross section, determine the magnitude of the maximum COMPRESSIVE bending stress and state where this occurs along the length of the beam and along the height of the beam (top or bottom). Sketch the NORMAL stress distribution (profile) for...
If the radius of this cylinder is .5 why did he take the r
from b to a -.05(i) + .5j since the distance from b to a is not the
radius?
PLANAR KINEMATICS OF A RIGID BODY CHAPTER 16 342 The cylinder shown in Fig, 16-14a rolls without slipping on the of a con point A. The cylinder has a clockwise angular velocity ? 15 rad/s at EXAMPLE 16.7 veyor belt which is moving at 2 ft/s. Determine the...
so i attempted to do this question and as you can see, i got
it wrong. Can you explain how these answers were found with steps,
formulas, and work shown please?
_u-IgNsikr7;8P3jH-WvUgVx-Up SERIALES COP S ection 7.3 Exercises Next 1 Previous 2 3 4 5 6 Question 1 of 6 (1.5 points) View problem in a pop-up 6.3 Section Exercise 9 - 14 (calc A sample of size 50 will be drawn from a population with mean 12 and standard...