A focal arrangement that has a thin lens that the light passes through before traveling down the tube to the objective mirror is a _______________.a. Cassegrain focus
b. Newtonian focus
c. Schmidt-Cassegrain focus
d. Schmidt focus
Answers
Here are the following choices:
a. Cassegrain focus
b. Newtonian focus
c. Schmidt-Cassegrain focus
d. Schmidt focus
Related Questions
Big Al stands on a skateboard at a rest and throws a 0.5-kilogram rock at a velocity of 10.0 m /sec. Big Al moves back at 0.05 m/sec. What is the combined mass of Big Al and the skateboard?
The path in which the Sun appears to move over the course of the year is called _____.A. an orbit B. the ecliptic C. a revolution D. the solar nebula
How did some U.S. citizens oppose the Vietnam war?Many left the U.S. for Europe.Many expressed opposition through protest marches.Many sent supplies to the South Vietnamese.
Why are the inner planets not made of light elements?
Answers
This latent heat does not increase the kinetic energy of the substance undergoing a state change and thus doesn't show its presence by increasing temperature.
Answers
Answer:
300 minutes.
Explanation:
Given,
Speed of car 1 = 60 Km/h
Speed of car 2 = 75 Km/h
distance travel by car 2 to catch car 1 = 75 Km
time taken to catch the car = ?
Relative velocity between the car = 75 - 60 = 15 Km/h
t = 5 hrs
t = 5 x 60 = 300 minutes.
water freezes inside a rock, causing it to break
oxygen reacts with the chemicals in rock
rocks break from repeated exposure to the Sun's heat
Answers
Answer: water freezes inside a rock, causing it to break
Weathering is a natural process in which the rocks break into pieces or sediments by the action of wind, water and chemical agents. Frost wedging is a physical weathering process. It occurs in an area where temperature fluctuations occurs due to change in the climatic conditions. This occurs due to rapid heating and cooling. The rocks lying in a cold environment, the water residing in the rocks gets freezed. The water in ice form that is solid form acquire more space than in liquid form, therefore, the developed ice will affect the physical structure of the rock. The formation of ice results in the development of break or crack in the rock typically in the shape of a wedge and thus the phenomena is called as frost wedging.
Hence, frost wedging happens when water freezes inside a rock, causing it to break.
Answer:
Frost wedging happens when water freezes inside of a rock, causing it to break
b. 1 unit
c. 75 units
d. m149 units
Answers
Answer;
1 unit
Explanation;
- Interference of a wave is the property a wave that occurs when two waves travelling in the same medium meet at a point or superpose at a point in the medium.
- Interference may be constructive or destructive. Constructive occurs when two identical waves travelling in the same medium in phase meet at a point. The resulting wave has twice the amplitude of the individual waves.
- Destructive interference occurs when two waves travelling in the same medium meet and out of phase. The resulting amplitude will be zero if the initial waves are identical, or the difference between the amplitude of the original waves if they are not identical.
- Therefore; If the two waves one with an amplitude 75 units and the other 74 units, are out of phase with each other, the resultant amplitude of the resulting wave will be 1 unit, the difference between the amplitude of the original waves.
out of phase (180° apart), then the resultant wave will have the
same frequency and an amplitude of 1 unit.
If the two waves do not have the SAME FREQUENCY, then their
relative phase is meaningless.
a. True
b. False
Answers
The answer is false because it is called an anticline.
the answer is false
Answers
Momentum = Mass * Velocity
m = 2.20 g = 0.0022 kg
v = 0.850 m/s
Momentum = 0.0022 kg * 0.850 m/s
Momentum = 0.00187 kgm/s
Answer:
The momentum is actually 1.87 g m/s
Explanation:
The other answer was right however that isn't an answer to the question.