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3 years ago

The impact of the type of material of which the slope is made on acceleration?

2 answers:

6 0

If you are asking about the effect different materials used for the slope of a ramp have on acceleration, higher acceleration results with a smoother surface material, less friction resistance.

denpristay [2]3 years ago

3 0

The slope is big and small

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A man flies a small airplane from Fargo to Bismarck, North Dakota --- a distance of 180 miles. Because he is flying into a head

love history [14]

Answer:

airplane speed 135mph windspeed 45 mph

Explanation:

This information helps us to write down a system of linear equations

When going head wind, the speed of the wind is substracted from that of the airplane and on the return trip it is added, then:

A:=Airlplane speed

W:= Wind speed

(A+W)*1h=180mi (1)

(A-W)*2h=180mi (2)

then from (1) A=180-W (3), replacing this in (2) we get (180-W-W)*2h =180mi, then

360-4W=180, or 180=4W, then W=45 mph. Replacing this in (3) we have that A=180-45=135 mph.

4 0

3 years ago

When different resistors are connected in parallel across an ideal battery, we can be certain that: a) their equivalent resistan

sergeinik [125]

Answer:

b) the potential difference across each is the same.

Explanation:

When resistors are connected in parallel with each other

then the terminals of all the resistors will connected across the terminals of the battery

So we know the potential difference of the battery is same across all the resistors

So we can say that the equivalent resistance of all the resistance is

$\frac{1}{R} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3}$

so its not the mean of all resistors

also we know that the resistance are all different so power across each resistance is different given as

$P = \frac{V^2}{R}$

also current in each resistance is also different and given by

$i = \frac{V}{R}$

so correct answer will be

b) the potential difference across each is the same.

5 0

3 years ago

When two or more waves are at the same place at the same time, which phenomena occurs

allochka39001 [22]

Answer:

Interference

Explanation:

Interference is a phenomenon that occurs when two waves meet while traveling along the same medium.

7 0

3 years ago

Read 2 more answers

Suzie riding her bike is able to get her bike to 20m/s in just 5 seconds. What is her acceleration?

Delicious77 [7]

Answer:

Explanation:

because 20/5 is 4, which means that suzie's acceleration is 4. Hope I helped

6 0

3 years ago

What is the best explanation for the observation that the electric charge on the stem became positive as the charged bee approac

topjm [15]

Answer:

Option B seems to be the appropriate choice,

Explanation:

The given question is incomplete. Please find the attachment of the complete question.

From either the principle or law of the Coulombs, there would have been either pressure (force) through attachment or repulsion amongst charges.
It is evident from the analysis presented that perhaps the bee becomes positively (+) charged and would have been drawn either by negatively (-) charged roots of the plants or stem.

As a consequence, the vegetation is electric current polarized because as activated bee pursued.

3 0

3 years ago