Answer:
Option A; ITS SURFACE IS COOLER THAN THE SURFACE OF THE SUN.
Explanation:
A red supergiant star is a larger and brighter type of red giant star. Red supergiants are often variable stars and are between 200 to 2,000 times bigger than the Sun. Example is Betelgeuse.
Betelgeuse is one of the largest known stars, it has a diameter of about 700 times the size of the Sun or 600 million miles, it emits almost 7,500 times as much energy as the Sun, it has a rather low surface temperature (6000F compared to the Sun's 10,000F); this means that it has a more cooler surface than the Sun's surface.
This low temperature also means that the star will appear orange-red in color, and the combination of size and temperature makes it a kind of star called a red super giant.
Although, all the statements above are correct, the only one that can be inferred from the red color of Betelgeuse is that ITS SURFACE IS COOLER THAN THE SURFACE OF THE SUN.
Answer:
5.843 m
Explanation:
suppose that the arrow leave the bow with a horizontal speed , towards he bull's eye.
lets consider that horizontal motion
distance = speed * time
time = 40/ 37 = 1.081 s
arrow doesnot have a initial vertical velocity component. but it has a vertical motion due to gravity , which may cause a miss of the target.
applying motion equation
(assume g = 10 m/s²)
Arrow misses the target by 5.843m ig the arrow us split horizontally
Answer:
Exploratory
Explanation:
<u>Focus groups</u>
It is a small group of 8-12 respondents guided by a moderator through a thorough debate on a specific subject or idea.It's great for generation of ideas, brainstorming, insight into motives, attitudes, and perceptions. it can show likes, dislikes,emotional requirements and prejudices.
Exploratory methods are used to gain initial insights that could pave the way for further investigation.
Some of the exploratory methods are focus groups, Key informant,case studies,secondary data and observational data.
Answer:i=300 mA
Explanation:
Given
inductance(L)=40 mH
Resistor(R)=
Voltage(V)=15 V
Time constant(
)=
current 
Current as a function of time is given by
i= 299.95 mA
Answer:
Fm = 51N and Fj = 26N
Summing the moments about the shoulder joint
Sum of anticlockwise moments = sum of clockwise moments
Fm x 12 = mg x 24
Fm = 2.6 x 9.8 × 24/12
Fm = 51N
Summing the forces acting on the arm
Sum of upward forces = sum of downward forces
Fm = Fj + mg
51 = Fj + 2.6 × 9.8
51 = Fj + 25.48
Fj = 51 - 25.48
Fj = 26N
Explanation:
Newtons first law and the principle of moments have been applied in solving this problem.
