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alukav5142 [94]
3 years ago
10

What is a substance?

Physics
1 answer:
kogti [31]3 years ago
7 0

Answer:

a particular kind of matter with uniform properties.

Explanation:

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A force acts on a 5kg object at rest. How fast will the object accelerate on a frictionless surface?
MakcuM [25]

Answer: The answer is C.) 25 m/s^2.

Explanation: If you input 5 as s, you would have to use the exponent 2.  This means that you have to multiply 5 by 5.  5 x 5= 25.  

Edit: Also, because the surface is frictionless, it will make the object go faster too.  Nothing can really slow it down unless something blocks it.

8 0
3 years ago
Can someone help me?
Alik [6]

Answer:

Resultant = 3.05N

Explanation:

r =  \sqrt{{5}^{2} + 5^{2} - 2(5)(5) \cos(120) }

r =  \sqrt{25 + 25 - 50(0.8142)}

r =  \sqrt{50 - 40.71}  =  \sqrt{9.29}

r = 3.05

6 0
3 years ago
Galileo and Newton both studied the night sky. Galileo studied Jupiter and its moons. Newton studied the gravitational force tha
denis23 [38]
Both had different interests
7 0
4 years ago
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Ground-based radio telescopes can collect data from distant objects in space
Butoxors [25]

Answer:

A.  during the day or night and in any weather conditions.

Explanation:

Ground-based radio telescopes can be used to collect data from distant objects in space during the day or night in any weather condition.

They do not depend or are they affected by weather and they pass well through them.

  • Telescopes are devices used to obtain information about distant bodies usually astronomical in nature.
  • Optical telescopes use the visible range of light and they are overwhelmed by the sun during the day.
  • Bad weather conditions can also diminish the reception of light.
  • They work best at night.
  • Radio telescopes uses electromagnetic radiations and can work at any time and during any weather.
6 0
3 years ago
A 5.0-kilogram box is sliding across a level floor. The box is acted upon by a force of 27 newtons east and a frictional force o
marshall27 [118]

Answer:

The magnitude of the acceleration of the box is 2 m/s².

Explanation:

Given:

Mass of the box, m=5.0 kg

Force acting towards east, F=27 N

Frictional force acting towards west, f=17 N

Let the acceleration be a m/s².

Now, net force acting on the box towards east is given as:

F_{net}=F-f=27-17=10\textrm{ N}

From Newton's second law of motion,

F_{net}=ma\\10=5.0\times a\\a=\frac{10}{5.0}=2\textrm{ }m/s^2

Therefore, the magnitude of the acceleration of the box is 2 m/s².

6 0
3 years ago
Read 2 more answers
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