Which statement best describes one main idea of Of Plymouth Plantation?

Answers

Answer 1

Answer: The correct answer for this question is this one: "The Pilgrims found themselves in a hostile environment with only their religious faith to sustain them." This is the best statement that best describes one main idea of Of Plymouth Plantation.

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A second baseman tosses the ball to a first baseman, who catches it a the same level from which it was thrown. The throw is made with an initial speed o 19.0 m/s at an angle of 37 degrees above the horizontal. Neglect air resistance. How long is the ball in the air?
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PLEASE HELP ME!If the mass of one object is tripled, and the distance between them is doubled, how does the force of gravity change?
a. Force is multiplied by 4
b. Force is divided 3
c. Force is multiplied 3/4
d. Force is divided 3/4

Answers

Force between two object is given by F = Gm1m2/r^2
If the mass of one object is tripled, and the distance between them is doubled,
then F(new) = Gm13m2/(2r)^2 = 3Gm1m2/4r^2 = 3/4 x Gm1m2/r^2 = 3/4 x F
i.e. F(new) = 3/4 multiplied by F.
Therefore, Force is multiplied by 3/4.

Ronnie kicks a playground ball with an initial velocity of 16 m/s at an angle of 40° relative to the ground. What is the approximate horizontal component of the initial velocity?

Answers

The horizontal component is calculated as:
Vhorizontal = V · cos(angle)

In your case Vhoriontal = 16 · cos(40) = 12.3 m/s

Answer: 12.3 m/s

The approximate horizontal component of the initial velocity is 12.3 m/s

What is projectile?

When an object is thrown at an angle from the horizontal direction, the object is said to be in projectile motion. The object which follows the projectile motion.

Given is Ronnie kicks a playground ball with an initial velocity of 16 m/s at an angle of 40° relative to the ground.

The horizontal component of the projectile is

Vx= V cosθ

Substitute the values, we get

Vx = 16 cos(40) =

Vx =12.3 m/s

Thus, approximate horizontal component of the initial velocity is 12.3 m/s.

Learn more about projectile.

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Define the efficiency of an energy converter.

Answers

Efficiency = (output energy) divided by (input energy) .

It's always less than 1 .

Also, it's commonly expressed as a percent. To get the percent,
just multiply the number by 100.

Which of the following is a type of antimatter created in some nuclear fusion reactions within stars?A. photon
B. positron
C. neutrino
D. helium-4

Answers

A type of antimatter created in some nuclear fusion reactions within stars is B. Positron. Antimatter is composed of antiparticles, and is considered to be the opposite of matter. Its antiparticles have the same mass as ordinary particles, but they have the opposite charge. When matter and antimatter come into contact, annihilation or destruction occurs.

Answer:

The answer is B i just took the test and got it correct:)

Explanation:

A thin layer of turpentine (n=1.472) is floating on water (n=1.333). Light of wavelength 589 nm initially traveling in air is incident on the turpentine at an angle of 24.8° measured with respect to the air-turpentine interface. What is the light's refraction angle in the turpentine?

Answers

The angle of refraction of the light in turpentine will be $\boxed{38.1^\circ}$ .

Explanation:

Given:

The refractive index of the turpentine is $1.472$ .

The refractive index of the water is $1.333$ .

The angle that the light makes with the surface of the turpentine is $24.8^\circ$ .

Concept:

As the light is incident on the surface of the turpentine at the air-turpentine interface, the light gets refracted from the surface. The refraction of light occurs due to change in the refractive index at the air-turpentine surface.

The angle of the refracted ray after undergoing refraction is given by the Snell's law.

$\boxed{n_1sin\,i=n_2sin\,r}$

Here, $n_1$ is the refractive index of first medium, $n_2$ is the refractive index of second medium, $i$ is the angle of incidence and $r$ is the angle of refraction.

The angle of incidence is the angle made by the light from the normal to the surface. So, in this case, the angle of incidence will be $(90^\circ-24.8^\circ)$ i.e. $65.2^\circ$ .

Substitute the values in above expression.

$\begin{aligned}(1)sin\,(65.2^\circ)&=(1.472)sin\,(r)\nr&=sin^(-1)\left((1)/(1.472)sin\,(65.2^\circ)\right)\n&=sin^(-1)(0.616)\n&\approx38.1^\circ\end{aligned}$

Thus, The angle of refraction of the light in turpentine will be $\boxed{38.1^\circ}$ .

Learn More:

1. How does the reflection differ from refraction and diffraction brainly.com/question/3183125

2. The reason for the refraction of light at air water interface brainly.com/question/3095091

3. Approximate length of the unsharpened pencil brainly.com/question/6140057

Answer Details:

Grade: High School

Subject: Physics

Chapter: Refraction

Keywords:

thin layer, turpentine, Snell's law, refraction, air, interface, normal, incident, light, refracted, refraction, refraction angle.

Answer:

16.6 degrees

Explanation:

We can solve the problem by using Snell's law for refraction:

$n_1 sin \theta_1 = n_2 sin \theta_2$

where:

$n_1 = 1.00$ is the index of refraction of the first medium (air)

$\theta_1 = 24.8^(\circ)$ is the angle of incidence

$n_2 = 1.472$ is the index of refraction of the second medium (turpentine)

$\theta_2$ is the angle of refraction of light in turpentine

By re-arranging the equation and using the numbers, we find

$sin \theta_2 = (n_1)/(n_2) sin \theta_i = (1.0)/(1.472) sin 24.8^(\circ)=0.285\n\theta_2 = sin^(-1) (0.285)=16.6^(\circ)$

Freddie Mercury is the singer of which Band Yes or Queen or Fleetwood Mac

Answers

He is the lead singer of the band Queen.

Answer: He is the lead singer of queen with Brian may (guitarist) John Deacon(bassist) and Roger Taylor(drummer). Before being known as queen they were called Smile

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