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ASHA 777 [7]
3 years ago
9

4. Which of the following statement describes the particle model.

Physics
2 answers:
m_a_m_a [10]3 years ago
8 0
The answer should be D!!!!!!!!!
Harlamova29_29 [7]3 years ago
7 0
I think it is A
Its not sure tho
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Which of the following statements is TRUE? A. Pollen, cat hair, and mold could trigger an asthma attack for some people. B. Asth
Tresset [83]

Which of the following statements is TRUE?

A. Pollen, cat hair, and mold could trigger an asthma attack for some people.

I am fairly certain that this one is correct. Hope this helps! :)

5 0
3 years ago
Forces that are equal in strength and opposite indirection are
Otrada [13]
Hey there! My name is Christy and I'm gladly to help you out!


The three main forces that stop moving objects are friction, gravity and wind resistance. Equal forces acting inopposite directions are called balanced forces. Balanced forcesacting on an object will not change the object's motion. When you add equal forces in opposite direction, the netforce is zero.

Hope this helped!


4 0
3 years ago
Read 2 more answers
A car in an amusement park ride rolls without friction around a track (Fig. P7.42). The hB car starts from rest at point A at a
MrRissso [65]

Answer:

h>\dfrac{5}{2}R

Explanation:

Given that

Height = h

Radius = R

From energy conservation

KE_A+U_A=KE_B+U_B

At point B

The minimum speed to complete the   the circle

V_B=\sqrt{gR}\ m/s

So the kinetic energy at point B

KE_B=\dfrac{1}{2}mV^2

KE_B=\dfrac{1}{2}mgR

KE_A+U_A=KE_B+U_B

0+mgh=\dfrac{1}{2}mgR+2mgR

Without falling off at the top (point B)

0+mgh>\dfrac{1}{2}mgR+2mgR

mg(h-2R)>\dfrac{1}{2}mgR

g(h-2R)>\dfrac{1}{2}gR

h>\dfrac{5}{2}R

6 0
3 years ago
Question 10 of 10 When light passes through a small opening in a barrier, it bends to spread out on the other side of the openin
suter [353]

Answer:

C. It is the result of diffraction

Explanation:

I just took the test

7 0
2 years ago
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A man is traveling from the back of a boat to the front of the boat at 2.0 m/s while the boat itself is traveling at 12.0 m/s to
Hatshy [7]

Based on the relative velocity of the man with respect to the boat and the dock:

  • Distance covered in 4.0 seconds relative to the boat  = 8 m
  • Distance covered in 4.0 seconds relative to the dock = 56 m

<h3>What is relative velocity?</h3>

Relative velocity is the velocity of a body relative to another body which serves as a reference point.

Relative velocity is a vector.

Considering the velocity of the man and the boat:

The relative velocity of the man with respect to the boat = 2.0 m/s

Distance covered in 4.0 seconds relative to the boat = 2.0 m/s * 4.0 s

Distance moved = 8 m

Relative velocity of the man with respect to the dock = 12 + 2 = 14 m/s

Distance covered in 4.0 seconds relative to the dock = 14.0 m/s * 4.0 s

Distance moved = 56 m

In conclusion, the relative velocity is velocity with respect to a reference point.

Learn more about relative velocity at: brainly.com/question/24337516

#SPJ1

5 0
1 year ago
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