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fredd [130]
2 years ago
12

Why does water’s high specific heat make it a good coolant for car radiators?.

Physics
2 answers:
Alexeev081 [22]2 years ago
7 0

Answer:

Car radiators: Water is used as coolant car radiators. Due to its high specific heat capacity, it can absorb a large amount of heat energy from the engine of the car, but its temperature does not rise too high.

Explanation:

i hope this answer your question if it s wrong please let know

Nataly [62]2 years ago
6 0

Answer:

Water has a high specific heat, meaning it takes more energy to increase the temperature of water compared to other substances. This is why water is valuable to industries and in your car's radiator as a coolant.

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What are the two types of physical fitness?<br>​
Marina86 [1]

<em><u>your </u></em><em><u>question</u></em><em><u>:</u></em><em><u> </u></em>

<em>What are the two types of physical fitness?</em>

<em><u>answer:</u></em>

<em>The</em><em> </em><em>two </em><em>types </em><em>of </em><em>phys</em><em>ical </em><em>fitn</em><em>e</em><em>s</em><em>s</em><em> </em><em>are </em><em>Health-related</em><em> physical fitness and Performance-related physical fitness.</em>

4 0
3 years ago
We get hurt when we kick a brick however we can displace it easily without pain when it is pushed gently, why?
Alla [95]
You’re using more force to kick the brick than to push it gently.
4 0
3 years ago
A barefoot field-goal kicker imparts a speed of 54 m/s to a football initially at rest. If the football has a mass of 0.55 kg an
il63 [147K]

Answer:

Force, F = 900 N

Explanation:

Given that,

Mass of the football, m = 0.55 kg

Initial speed of the ball, u = 0

Final speed, v = 54 m/s

Time of contact, t = 0.033 s

We need to find the magnitude of the force exerted by the ball on the kicker’s foot. It is a case of second law of motion. It is equal to the rate of change of momentum. So,

F=\dfrac{\Delta p}{\Delta t}\\\\F=\dfrac{mv}{t}\\\\F=\dfrac{0.55\times 54}{0.033 }\\\\F=900\ N

So, the magnitude of the force exerted by the ball on the kicker’s foot is 900 N.

8 0
3 years ago
If an electron moves in a circle of radius 21 cm perpendicular to a B field of 0.4 T, what are the speed of the electron and the
kodGreya [7K]

Answer:

a)

v = 4.048 *10^6 m/s

b)  

Angular frequency =  1.92 * 10^7

Explanation:

As we know

v =  \frac{qBr}{m}

q is the charge on the electron = 3.2 * 10^{-19} C

B is the magnetic field in Tesla = 0.4 T

r is the radius of the circle = 0.21 m

mass of the electrons = 6.64 * 10^{-27} Kg

a)

Substituting the given values in above equation, we get -

v = \frac{3.2 * 10^{-19}*0.4*0.21}{6.64 * 10^{-27}} \\v = 4.048 *10^6m/s

b)  

Angular frequency =

\frac{4.048 * 10^6 }{0.21} \\1.92 * 10^7

8 0
3 years ago
A 1200N load is to be lifted with 200N effort using a first class lever. At what distance
kipiarov [429]

Explanation:

Hey there!!

Let's simply work with it.

Here,

load = 1200N

Effort = 200N

Load distance = 15cm

We have,

According to the principle of lever.

L×LD = E×ED.

1200×15 = 200× ED.

18000 = 200ED.

ed =  \frac{18000}{200}

Therefore, Effort Distance = 90cm.

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

7 0
3 years ago
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