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ryzh [129]
3 years ago
13

Describe an experiment to show that air support burning​

Physics
1 answer:
noname [10]3 years ago
3 0
Take a small burning candle. ... After few minutes the candle is extinguished. As the supply of air is stopped due to glass jar the burning of candle is also stopped. This experiment proves that air supports burning.
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A 60 kg gorilla named Anthony Falcon is standing on his skateboard. This is on planet Erf,
djyliett [7]
F= ma
F= (600/-10) -10
F= 580n

At least I think that’s the answer
4 0
3 years ago
To find the specific heat capacity of a solid of mass 600 g whose temperature was 40oC, it was placed in a calorimeter that cont
RSB [31]

Explanation:

The specific heat capacity is the heat or energy required to change one unit mass of a substance of a constant volume by 1 °C. The formula is Cv = Q / (ΔT ⨉ m) .

4 0
3 years ago
Read 2 more answers
A 1 200-kg automobile moving at 25 m/s has the brakes applied with a deceleration of 8.0 m/s2. How far does the car travel befor
Alja [10]

Answer:

Δx = 39.1 m

Explanation:

  • Assuming that deceleration keeps constant during the braking process, we can use one of the kinematics equations, as follows:

        v_{f} ^{2} - v_{o} ^{2} = 2* a * \Delta x (1)

        where  vf is the final velocity (0 in our case), v₀ is the initial velocity

        (25 m/s), a is the acceleration (-8.0 m/s²), and Δx is the distance

        traveled since the brakes are applied.

  • Solving (1) for Δx, we have:

        \Delta x = \frac{-v_{o} ^{2} }{2*a} = \frac{-(25m/s)^{2}}{2*(-8.0m/s2} = 39.1 m (2)        

7 0
3 years ago
Which reverses the flow of current through<br> an electric motor?
Gennadij [26K]

Answer:

a commutator

Explanation:

6 0
3 years ago
A block weighing 9.3 N requires a force of 3.7 N to push it along at constant velocity. What is the coefficient of friction for
olga_2 [115]

Answer:

0.398

Explanation:

According to friction, the frictional force is directly proportional to the normal reaction

Ff = nR

Ff is the frictional force

n is the coefficient of friction

R is the reaction

Reaction is equal to the weight

R= W = 9.3N

Fm = Ff = 3.7N

Fm is the moving force

Get the coefficient of friction

n = Ff/R

n = 3.7/9.3

n = 0.398

Hence the coefficient of friction for the surface is 0.398

3 0
3 years ago
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