Answer: Nia could measure the temperature of the bottom floor of a house to see if the heat had risen in the house due to convection.
Explanation:
a) p₀ = 1.2 kg m / s
b) p_f = 1.2 kg m / s
c) 
= 1.278 m/s
d)1.2482 = cos θ
e) 0.2736 =sin θ
g) θ = 12.36
<h3>
What is momentum?</h3>
Momentum is the product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction.
According to the question,
We define a system formed by the two balls, which are isolated and the forces during the collision are internal.
Hence , the momentum is conserved
a) The momentum of the system before the collision:
b) The momentum of the system after the collision, as the system is isolated, the momentum is conserved so
d. On X axis
= 1.2 kg m / s
= m v1f cos 20 + m v2f cos θ
1.2 = 0.6 (-0.8) cos 20+ 0.6 cos θ
1.2482 = cos θ
e. On Y axis
= m
sin 20 + mcos θ
0 = 0.6 (-0.8) sin 20 + 0.6 sin θ
0.2736 =sin θ
Here,
g. we write our system of equations
0.2736 = sin θ
1.2482 = cos θ
0.219 = tan θ (divide)
θ = tan⁻¹ 0.21919
θ = 12.36
c. Now To find the velocity
0.2736 = sin θ
= 0.2736 / sin 12.36
= 1.278 m / s
Learn more about momentum here:
brainly.com/question/4956182
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<span>Plasma is a controllable reactive gas that is used to make small PATTERNS in silica which are used in computers and cell phones.</span>
Net force
As it's negative the box will move left
Any type of physical act isn’t a emotional reaction. Things like crying or yelling or getting mad at yourself is emotional. Changes in your activity level, change in eating, sleeping, sense of humor. Increased uses in tobacco or drugs, when you’re becoming accident prone, when you’re not able to relax, when your heart rate increases, headaches, startled easily, when you’re tired all the time and sleep doesn’t help (fatigue). For women your period might change. When you get lower back pain, upset stomach, flare ups that are associated with allergies asthma or arthritis and if you get sick easier. If you lose more hair than normal for your body. If you’re blood pressure is up. Things like this is physical. You might find people will isolate themselves or blame themselves. They may have a difficulty concentrating. You can look up so many ways that stress can affect a person physically
