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3 years ago

Iron meteorites are interpreted as deriving from the cooled metallic core of a largeish asteroid. This is based upon:

Physics

1 answer:

Aleks [24]3 years ago

3 0

Answer:

This is based upon the fact that meteorites are generally believed to have originated as solid debris from Larger bodies like meteoroid or asteroids

Explanation:

Iron meteorites are interpreted as deriving from the cooled metallic core of a larger asteroid , because meteorites are generally believed to have originated as solid debris from Larger bodies like meteoroid or asteroids that are located outside the planet but found their way into our planet .

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The chart shows the bids provided by four contractors to complete a job.

serg [7]

"Cost-effective" means "most economical", "lowest cost", "cheapest".

Joshua . . . charges $25 an hour, says the job will take him 5 hours. If Joshua is hired, then the total cost to get the job done is ($25/hr) x (5 hr) = $125 .

Carmen . . . $20 per hour, 7 hours, total cost ($20/hr) x (7 hr) = $140

Dante . . . $30 per hour, 6 hours, total cost ($30/hr) x (6 hr) = $180

Alicia . . . $20 per hour, 8 hours, total cost ($20/hr) x (8 hr) = $160

Joshua's total bid cost is the lowest, so his company should get the job.

Notice that all of these bids are predictions of something that hasn't happened yet. IF Joshua can actually finish the job in 5 hours, like he says, then he would be the cheapest. But his estimate of the time required is the shortest of all. That's great if he's done this kind of job before. But if he doesn't have experience doing it, I would be a little careful. He could get part of the way through the job and discover that it's going to take him longer than he thought.

There are also certain regional considerations:

-- I live in Chicago, where cost is not always the main factor. Here, you would have to award the job to Dante, because his brother supplies the concrete in the ward where the job will be done, and his niece is dating the alderman of that ward.

-- In California, you'd have to give Alicia the job because the board of directors and management of her company are all women. You should also plan to provide chocolates, flowers, and college scholarships to her administrative staff and IT department relatively soon after the job is completed.

5 0

4 years ago

Which way do electric field lines point?

Jlenok [28]

At any point, the electric field points in the direction of the force
on a positive point-charge located there. So the lines point away
from a positive charge, and toward a negative one.

4 0

3 years ago

A red shirt appears red because?

pickupchik [31]

Red shirt appears red because:

a. The shirt reflects red light

3 0

3 years ago

A wire of 2kg is attached to the end of a vertical wire of length 2m and

snow_tiger [21]

Answer:

12732.4 N/mm^2

Explanation:

y = stress/strain

8 0

3 years ago

During the course of a trajectory, is the vertical component of the velocity a constant or a changing value? ___________________

ICE Princess25 [194]

Answer:

1) Changing value

2) The velocity is decreasing for upward motion and increasing for downward motion due to gravitational force

Explanation:

1) A trajectory is the motion of an object which is being acted upon by specified forces. The flight path of an object in projectile motion is its trajectory

During the course of a trajectory, the vertical component of the velocity, $v_y$ , is a changing value

2) The vertical component of the velocity first decreases, during the upward motion, according to the following equation;

$v_y$ = $u_y$ - g·t

Where;

$v_y$ = The vertical component of the velocity after a given time, t

$u_y$ = The initial vertical velocity

t = The time of motion of the trajectory

g = The acceleration due to gravity ≈ 9.8 m/s²

When the vertical velocity of the object decreases to zero, which is the point at which the object reaches the maximum height of its motion, the direction of the vertical motion of the object reverses, and object begins to accelerate and increase its velocity downwards according to the following equation;

$v_y$ = $u_y$ + g·t

Therefore, the velocity of the object is decreasing on its way up, and then increasing on its way down.

3 0

3 years ago