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3 years ago

Which one is more important in science, qualitative or quantitative

Physics

1 answer:

Sergeeva-Olga [200]3 years ago

5 0

Answer:

quantitative

Explanation: quantitative research is better for scientist.

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The principles used to solve this problem are similar to those in Multiple-Concept Example 17. A 205-kg log is pulled up a ramp

malfutka [58]

Answer:2538.43 N

Explanation:

Given

Mass of Log=205 kg

Ramp angle $=25^{\circ}$

Coefficient of Friction=0.855

log acceleration $=0.647 m/s^2$

Let T be the Tension

$T-mgsin\theta -f_r=ma$

Here $f_r=frictional\ Force=\mu N=0.855mgcos\theta =1556.76 N$

$T=mgsin25+m\times 0.647+1556.76$

T=849.04+132.63+1556.76=2538.435 N

8 0

3 years ago

a cart rolls down a track. it starts from rest and attains a speed of 2.7 m/s in 3 s, what is the acceleration and distance trav

ruslelena [56]

Answer:

Acceleration and the distance traveled are 0.9 m/s² and 4.05 m

Explanation:

Given that,

Initail speed, u = 0

Final speed, v = 2.7 m/s

Time, t = 3 s

To find,

The acceleration and distance traveled.

Solution,

Acceleration is change in speed per unit time

$a=\dfrac{v-u}{t}\\\\a=\dfrac{2.7-0}{3}\\\\a=0.9\ m/s^2$

Let s is the distance,

$d=ut+\dfrac{1}{2}at^2\\\\\because u=0\\\\d=0+\dfrac{1}{2}\times 0.9\times 3^2\\\\d=4.05\ m$

So, acceleration and the distance traveled are 0.9 m/s² and 4.05 m

3 0

3 years ago

You are out on the water in foggy conditions. You hear one prolonged blast plus two short blasts every two minutes. What does th

Ber [7]

Answer:

Explanation:

One prolonged blast every two minutes is an indication of incoming of a power-driven vessel underway. This blast is done to make aware other boats, about your location, in the conditions of poor visibility. The other boats will have to slow down their speed, in order to avoid collision.

4 0

3 years ago

Select the correct location on the image.<br> Identify the magnetic north pole of Earth’s magnet.

OverLord2011 [107]

The magnetic north pole of the earth's magnet is in the geographic south pole.

There are two magnetic and geographic poles each, north and south
The two geographic poles are the locations where the earth's axis of rotation passes through which is imaginary
The magnetic north and south poles are not the same as the geographic north and south poles
In a compass, the needle points to the magnetic north pole
By convention, the magnetic north pole corresponds to the geographic south pole
The magnetic south pole corresponds to the geographic north pole
The magnetic field lines of a magnet start from the magnetic north pole and end at the magnetic south pole

The magnetic north pole of the earth's magnet is the geographic south pole.

Learn more about earth's magnetism here:

brainly.com/question/3928159

#SPJ10

8 0

2 years ago

How do you calculate the volume and density of something that weighs 20 grams?

Nostrana [21]

Mass divided by volume is density, while mass times density is volume. you cannot calculate density without volume and you cannot calculate volume without density.
i believe that's the answer.
oh gosh i didn't realize my middle school education involved high school stuff.

6 0

4 years ago