Which of the following information does the electromagnetic spectrum tell us?

A plane is flying a circular path at a speed of 55.0 m/ s, with a radius of 18.3 m. The centripetal force needed to maintain thi

Nadusha1986 [10]

The plane has a centripetal acceleration a of

a = v ²/r

where v is the plane's tangential speed and r is the radius of the circle. By Newton's second law,

F = mv ²/r

Solve for the mass m :

m = Fr/v ² = (3000 N) (18.3 m) / (55.0 m/s)² ≈ 18.1 kg

7 0

3 years ago

The Sun has a mass of 1.99x10^30 kg and a radius of 6.96x10^8 m. Calculate the acceleration due to gravity, in meters per second

just olya [345]

Answer:

$g=274\ m/s^2$

Explanation:

Mass of the Sun, $M=1.99\times 10^{30}\ kg$

The radius of the Sun, $r=6.96\times 10^8\ m$

We need to find the acceleration due to gravity on the surface of the Sun. It is given by the formula as follows :

$g=\dfrac{GM}{r^2}\\\\g=\dfrac{6.67\times 10^{-11}\times 1.99\times 10^{30}}{(6.96\times 10^8)^2}\\\\g=274\ m/s^2$

So, the value of acceleration due to gravity on the Sun is $274\ m/s^2$ .

8 0

3 years ago

A 1 in diameter solid round bar has a groove 0.1 in deep with a 0.1 in radius machined into it. The bar is made of AISI 1040 CD

Maru [420]

The answer & explanation for this question is given in the attachment below.

3 0

4 years ago

6. What are 3 different evidences of evolution? How is each form used to provide evidence of evolution?

Cloud [144]

Answer:

Divergent - This type of evolution often occurs when closely related species diversify to new habitats. On a large scale, divergent evolution is responsible for the creation of the current diversity of life on earth from the first living cells. On a smaller scale, it is responsible for the evolution of humans and apes from a common primate ancestor.

Convergent - Convergent evolution causes difficulties in fields of study such as comparative anatomy. Convergent evolution takes place when species of different ancestry begin to share analogous traits because of a shared environment or other selection pressure. For example, whales and fish have some similar characteristics since both had to evolve methods of moving through the same medium: water.

Parallel evolution - Parallel evolution occurs when two species evolve independently of each other, maintaining the same level of similarity. Parallel evolution usually occurs between unrelated species that do not occupy the same or similar niches in a given habitat.

6 0

3 years ago

The notion that individuals have the right to use lethal force against individuals who enter their home is an example of the inf

artcher [175]

An illustration of the impact of Frontier justice is the idea that people have the right to use fatal force against others who enter their house.

What is Frontier justice?

Frontier justice is administrative retribution that is driven by the absence of rule and regulation or discontent with the administration of justice.
A biased judge can also be described using this Frontier justice.
Frontier justice is characterized by practices like lynching, vigilantism, and gunfighting.
Like Frontier justice there is another law, named castle doctrine, also referred to as a castle law or a defense of habitation law, which is a constitutional principle that defines a person's home or any other legally occupied location as a place in which that individual has protections and immunities, allowing one, in certain situations, to use force to safeguard oneself against an attacker, free from criminal action for the consequences.

Learn more about justice here:

brainly.com/question/9003956

#SPJ4

3 0

2 years ago