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shepuryov [24]
3 years ago
9

Water boiling Which one is shown? (Look at pic)

Physics
1 answer:
Mkey [24]3 years ago
4 0

Answer:

conduction.

Explanation:

Hoped I helped! Im Eve btw have a great day and consider marking this brainliest if you do thank you in advanced!

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If a person walks 1km north , 5 km West , 3km south and 7km east, find the resultant displacement vector
raketka [301]

Y = +1-3 = -2  

X = -5+7 = +2  

D = √2^2-2^2 = 2√1+1 = 2√2 km

3 0
3 years ago
If the change in enthalpy is -5074.1 kj , how much work is done during the combustion?
baherus [9]
Hence, 
<span>∆H = ∆U + W </span>
<span>=> </span>
<span>W = ∆H - ∆U </span>
<span>= -5074 kJ - (-5084.) kJ </span>
<span>= 10 kJ</span>
8 0
3 years ago
A stunt-rider on a motorcycle rides down a ramp and into a vertical loop-the-loop. If the diameter of the loop is 7.50 m, then t
VikaD [51]

Answer:

v = 6.06 m/s

Explanation:

In order for the rider to pass the top of the loop without falling, his weight must be equal to the centripetal force:

Centripetal Force = Weight \\\frac{mv^2}{r} = mg\\\\\frac{v^2}{r} = g\\\\v = \sqrt{gr}

where,

v = minimum speed of motorcycle at top of the loop = ?

g = acceleration due to gravity = 9.8 m/s²

r = radius of the loop = diameter/2 = 7.5 m/2 = 3.75 m

Therefore, using these values in equation, we get:

v = \sqrt{(9.8\ m/s^2)(3.75\ m)}

<u>v = 6.06 m/s</u>

5 0
3 years ago
The normal is a line perpendicular to the reflecting surface at the point of incidence.
ladessa [460]

Answer:

True

Explanation:

The normal line is defined as the line which is perpendicular to the reflecting surface at the point where the incident ray meet with the reflecting surface.

The angle of incident is defined as the angle which is subtended by the incident ray with respect to the normal ray by consider the normal ray as the base line and angle is measured from the point where incident ray is incident on the reflecting surface of the mirror.

Similarly reflecting ray can be defined as the ray which is reflected after the incident of a ray and the angle subtended by the reflecting ray is measure with respect to normal ray by considering normal ray as a base line.

Therefore, the normal ray is the perpendicular line to the reflecting surface at the point of incidence.

4 0
3 years ago
What is the purpose of shock absorbers on a car? What is a way you can tell if they are worn out? Please no hand writting
AVprozaik [17]

Purpose;

They tend to damp the oscillations(bumpiness) that a car does when it goes over a bump

You can tell that they are worn out by...feeling the car's bumpiness when it goes over a bump...in which the car tend to keep oscillating for a longer period of time

5 0
3 years ago
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