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Basile [38]
3 years ago
7

Find the value of k for which the given pair of vectors are not equal2ki +3j​ and 8i + 4kj

Physics
1 answer:
jek_recluse [69]3 years ago
7 0

Answer:

5

Explanation:

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I would like to know why this is the correct answer
Helen [10]

The acceleration of the object if the net force is decreased = 0.13 m/s²

<h3>Further explanation</h3>

Given

A net force of 0.8 N acting on a 1.5-kg mass.

The net force is decreased to 0.2 N

Required

The acceleration of the object if the net force is decreased

Solution

Newton's 2nd law :

\tt \sum F=m.a

The mass used in state 1 and 2 remains the same, at 1.5 kg

  • state 1

ΣF=0.8 N

m=1.5 kg

The acceleration, a:

\tt a=\dfrac{\sum F}{m}\\\\a=\dfrac{0.8}{1.5}\\\\a=0.53`m/s^2

  • state 2

ΣF=0.2 N

m=1.5 kg

The acceleration, a:

\tt a=\dfrac{\sum F}{m}\\\\a=\dfrac{0.2}{1.5}\\\\a=0.13~m/s^2

8 0
3 years ago
A solution which has a solid solute is saturated at 25°C. It is then heated to 35°C. There is no change in the appearance of the
vampirchik [111]

Answer:

C. oversaturated

Explanation:

Sana nakatulong

8 0
3 years ago
Elements in the periodic table are arranged in order of increasing...
Radda [10]

Answer:

(B) The number of protons - only the number of protons in the nucleus determines the element - mass and neutrons can vary for the same element

4 0
2 years ago
Which type of waves give scientists information about the structure of Earth's interior layers?
slava [35]

Answer:

Seismic waves

Think of earthquakes :)

8 0
3 years ago
Describe the phenomenon of photoelectric emission ​
Solnce55 [7]

Answer:

Photoelectric effect, phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation. The effect is often defined as the ejection of electrons from a metal plate when light falls on it.

Explanation:

4 0
3 years ago
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