Math
The light in a lighthouse revolves around an axis. The beam of light is perpendicular to the axis but the axis is not veretical. Because the axis is tilted,when the light beam points east it is inclined upward at 8 degree(s). When the beam points north, it is inclined upward at 6 degree(s). What is the maximum angle of elevation of the light beam?(Give at least five decimals of accuracy.)
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(1 point) The light in a lighthouse revolves around an axis. The beam of light is perpendicular to the axis but the axis...
(1 point) The light in a lighthouse revolves around an axis. The beam of light is perpendicular to the axis but the axis is not vertical. Because the axis is tilted, when the light beam points east it is inclined upward at 10 degree(s). When the beam points north, it is inclined upward at 1 degree(s). What is the maximum angle of elevation of the light beam? (Give at least five decimals of accuracy.)
PROBLEM #2: Max has two pairs of polarized sunglasses. Each of the four lenses has a...
PROBLEM #2: Max has two pairs of polarized sunglasses. Each of the four lenses has a polarization axis that is vertical (perpendicular to the ground) when worn. Max removes three of the lenses from the glasses and arranges them in front of the fourth lens so that the polarization axes of the first and the fourth lens are perpendicular to each other. He places the other two lenses between the outermost lenses, rotating the second and third lens so that...
Question 19 and 20 The package follows a cured path, but it is always vertically below...
Question 19 and 20
The package follows a cured path, but it is always vertically below the airplane. The package follows a straight line path that lags behind the airplane. A car travels due east at 12 m/s. It makes a turn due north and continues to travel at 16 m/s. What is the net velocity of the car? 20 m/s, 53 degree with the east 25 m/s, 37 degree with the east 28 m/s, 35 degree with the east...
12.12 Headlight effect* A light beam is emitted at angle θ 0 with respect to the...
12.12 Headlight effect* A light beam is emitted at angle θ 0 with respect to the x, axis in (a) Find the angle 0 the beam makes with respect to the x axis in S (b) A source that radiates light uniformly in all directions in its rest frame radiates strongly in the forward direction in a frame in which it is moving with speed v close to c. This is called the head- light effect; is very pronounced in...
get all points for answering both, get half for answering one or the other 1.PROJECTILE MOTION...
get all points for answering both, get half for answering one or the other 1.PROJECTILE MOTION VELOCITY: A ball is thrown upward from a platform 4.6 m high with a speed of 16 m/s at an angle of 43 o from the horizontal. What is the magnitude of its velocity when it hits the ground? 2. DISPLACEMENT VECTOR: a. A jogger runs directly east for 3 km, then turns and goes northwest for 8 km. He then travels directly south for...
16. What is 90 degrees minus 22d A. 68d43'28 26 32"? B. 67d33'28 C. 68d26 32"...
16. What is 90 degrees minus 22d A. 68d43'28 26 32"? B. 67d33'28 C. 68d26 32" D. 77d34'28 E. None of these f7. When locating a position on the surface of the planet, latitude lines are used which run: A. around the globe (East-West) beginning from the equator) 5. inside the earth' s core in straight lines parallel to the Earth's magnetic North pole . around the globe (North-South) beginning from Prime D. from the Earth's surface toward the Sun,...
When a beam of light passes through a pair of polarizing filters (polarizer and analyzer), the...
When a beam of light passes through a pair of polarizing filters (polarizer and analyzer), the intensity of the transmitted light is a maximum when the transmission axes of the polarizer and analyzer are parallel to each other (θ = 0° or θ= 180°) and zero when the axes are perpendicular to each other (θ = 90°). For any value of theta between 0° and 90° the transmitted intensity is given by I = Ii cos2(θ) where Ii is the...
1. A figure skater glides along a circular path of radius 5.28m. (a) If she coasts...
1. A figure skater glides along a circular path of radius
5.28m.
(a) If she coasts around one half of the circle, find the
magnitude of the displacement vector. (SI unit: m)
(b) If she coasts around one half of the circle, find what
distance she skated. (SI unit: m)
(c) What is the magnitude of the displacement if she skates all
the way around the circle? (SI unit:m)
2. A novice golfer on the green takes three strokes to...
20) A cart rolls with negligible friction on a ramp that is inclined at an 17...
20) A cart rolls with negligible friction on a ramp that is inclined at an 17 degree angle above level ground. It is released from rest and reaches the bottom of the ramp in 4 seconds. How far did it travel along the ramp? a) What was the vertical height from which the cart was released? b) At the bottom of the first ramp, the cart smoothly rolls onto a second ramp without losing any significant amount of speed. The...
20) A cart rolls with negligible friction on a ramp that is inclined at an 17...
20) A cart rolls with negligible friction on a ramp that is inclined at an 17 degree angle above level ground. It is released from rest and reaches the bottom of the ramp in 4 seconds. How far did it travel along the ramp? a) What was the vertical height from which the cart was released? b) At the bottom of the first ramp, the cart smoothly rolls onto a second ramp without losing any significant amount of speed. The...
PROBLEM #2: Max has two pairs of polarized sunglasses. Each of the four lenses has a polarization axis that is vertical (perpendicular to the ground) when worn. Max removes three of the lenses from the glasses and arranges them in front of the fourth lens so that the polarization axes of the first and the fourth lens are perpendicular to each other. He places the other two lenses between the outermost lenses, rotating the second and third lens so that...
Question 19 and 20
The package follows a cured path, but it is always vertically below the airplane. The package follows a straight line path that lags behind the airplane. A car travels due east at 12 m/s. It makes a turn due north and continues to travel at 16 m/s. What is the net velocity of the car? 20 m/s, 53 degree with the east 25 m/s, 37 degree with the east 28 m/s, 35 degree with the east...
12.12 Headlight effect* A light beam is emitted at angle θ 0 with respect to the x, axis in (a) Find the angle 0 the beam makes with respect to the x axis in S (b) A source that radiates light uniformly in all directions in its rest frame radiates strongly in the forward direction in a frame in which it is moving with speed v close to c. This is called the head- light effect; is very pronounced in...
16. What is 90 degrees minus 22d A. 68d43'28 26 32"? B. 67d33'28 C. 68d26 32" D. 77d34'28 E. None of these f7. When locating a position on the surface of the planet, latitude lines are used which run: A. around the globe (East-West) beginning from the equator) 5. inside the earth' s core in straight lines parallel to the Earth's magnetic North pole . around the globe (North-South) beginning from Prime D. from the Earth's surface toward the Sun,...
1. A figure skater glides along a circular path of radius
5.28m.
(a) If she coasts around one half of the circle, find the
magnitude of the displacement vector. (SI unit: m)
(b) If she coasts around one half of the circle, find what
distance she skated. (SI unit: m)
(c) What is the magnitude of the displacement if she skates all
the way around the circle? (SI unit:m)
2. A novice golfer on the green takes three strokes to...
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