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3 years ago

Will a planet or comet be moving faster in its orbit when it is farther from or closer to the sun?

1 answer:

5 0

No difference.

A planet, asteroid, space station, rock, empty fuel tank, asteroid,
lost space probe, TV satellite, orbiting telescope, moon, or comet,
if they're traveling in the same orbit around the same central body,
all have the same speed at the same point in the orbit.

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hichkok12 [17]

Answer:

100 million step

Explanation:

wish it will help u

4 0

3 years ago

Someone stuck a piece of chewing gum on the outer edge of a blade on a ceiling fan. The radius (r) of where the gum is from the

maksim [4K]

Answer: why would u stick a gum there

Explanation:

3 0

3 years ago

A camera operator is filming a nature explorer in the Rocky Mountains. The explorer needs to swim across a river to his campsite

julia-pushkina [17]

Answer:

<em>a. Angle= 28.82°</em>

<em>b. Approved. He will get cold but he should be able to make it across</em>

Explanation:

Velocity Vector

The velocity is a physical quantity that measures how fast or slow at a particular direction some object is moving. It must be expressed as a vector with both a magnitude and direction. If the object is confined to move in one direction, then we can use the speed as the scalar (magnitude only) equivalent of the velocity.

The explorer wants to swim across a river to his campsite, as shown in the image below. The river has a velocity vr and the explorer can swim at ve in still water. If he swam directly to the campsite, he would end up in a point below it because the river would push him down. He must swim with a velocity such that he overcomes the stream but he advances to its objective. Let's call the angle he must swim at respect to the shoreline to achieve his goal. The explorer's velocity can be decomposed in its rectangular components vx and vy. To overcome the river's velocity:

$v_{ey}=v_r$

We can compute the vertical component of the explorer's velocity as

$v_{ey}=|v_e|cos\alpha$

Thus

$v_r=|v_e|cos\alpha$

Solving for $\alpha$

$\displaystyle cos\alpha=\frac{v_r}{|v_e|}$

$\displaystyle cos\alpha=\frac{0.665}{0.759}=0.876$

Then we have the angle is

$\alpha=28.82^o$

The horizontal component of the explorer's velocity is

$v_{ex}=0.759sin28.82^o$

$v_{ex}=0.366\ m/s$

This is the real velocity the explorer is having directly to the campsite

Knowing that

$\displaystyle v=\frac{x}{t}$

Solving for t

$\displaystyle t=\frac{x}{v}$

Calculating the time it takes the explorer to cross the river

$\displaystyle t=\frac{29.3}{0.366}$

$t=80\ sec$

Since this value is less than the limit value of hypothermia (300 sec), the decision is

Approved. He will get cold but he should be able to make it across

3 0

3 years ago

A car is driven 13 mi east and then certain distance due north, ending up at the position 25 degrees north of east of its initia

Kobotan [32]

Answer: Hello mate!

lets define the north as the y-axis and east as the x-axis.

Using the notation (x,y) we can define the initial position of the car as (0,0)

then the car travells 13 mi east, so now the position is (13,0)

then the car travels Y miles to the north, so the position now is (13, Y)

and we know that the final position is 25° degrees north of east of the initial position. This angle says that the distance traveled to the north is less than 13 mi because this angle is closer to the x-axis (or east in this case).

This angle is measured from east to north, then the adjacent cathetus is on the x-axis, in this case, 13mi

And we want to find the distance Y, so we can use the tangent:

Tan(25°) = Y/13

tan(25°)*13 mi = Y = 6.06 mi.

3 0

3 years ago

The process of thinking that involves considering an overall general idea or theory and drawing specific conclusions or making s

Zigmanuir [339]

<h2>Answer:</h2>

Deductive reasoning

<h2>Explanation:</h2>

The process of using pre-existing knowledge to make logical conclusions, make predictions and draw out explanations is called reasoning. Reasoning are basically of two types:

i. Deductive reasoning: This takes a general rule, idea, or theory as foundation and then proceeds from there to draw meaningful conclusions or predictions. For example;

From above, following from equations (i) and (ii), it can be concluded that (iii) should be true.

ii. Inductive reasoning: While deductive reasoning moves from a general rule to specific rule, inductive reasoning does the opposite - moves from specific to a general rule.

7 0

3 years ago