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nignag [31]
3 years ago
14

Every chemical reaction demonstrate what important scientific principle

Physics
1 answer:
Korolek [52]3 years ago
4 0
The answer to this question would be the Law of conservation of energy.

In every chemical reaction, 10 atoms of reacted will make 10 atoms as result. The number of atoms produced will be same as the number of ingredients. This will prove that the energy is <span>can neither be created nor destroyed; The energy is just changed into a different shape.</span>
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What is the volume of a cone with a height of 27cm and a radius of 13cm? And your answer to the nearest tenth
SashulF [63]

Answer:

the volume of the cone is 4778.36 cm^3

Explanation:

The computation of the volume of the cone is shown below:

As we know that

The Volume of the cone is

r denotes the radius

And, h denotes the height

So,

= \frac{1}{3} \pi r^2 h \\\\=  \frac{1}{3} \times 3.14 \times 13^2 \times 27\\\\= 4778.36 cm^3

Hence, the volume of the cone is 4778.36 cm^3

5 0
3 years ago
Suppose a cars momentum is calculated to be 36000 kg• km/ hr the mass of the car is 1500 kg what is the magnitude of the velocit
Marta_Voda [28]

Momentum = (mass) x (speed)


(Speed = magnitude of velocity)



36,000 kg-km/hr = (1,500 kg) x (speed)


Divide each side by (1,500 kg) :


Speed = (36,000 kg-km/hr) / (1,500 kg)


Speed = (36,000 / 1,500) kg-km / hr-kg


Speed = 24 km/hr


5 0
3 years ago
PLZ HELP I I HAVE NO IDEA WHAT THIS IS
Zielflug [23.3K]

Answer:

B is the answer because it's the closest to the sun, so it has a smaller path.

3 0
3 years ago
Read 2 more answers
A car starts out traveling at 35 m/s. The car hits the brakes and decelerates at a rate of 3 m/s^2 for 5 seconds. What Distance
Ipatiy [6.2K]
Answer:

Time needed: 2.5 s
Distance covered: 31.3 m

Explanation:

I'll start with the distance covered while decelerating. Since you know that the initial speed of the car is 15.0 m/s, and that its final speed must by 10.0 m/s, you can use the known acceleration to determine the distance covered by

v2f=v2i−2⋅a⋅d

Isolate d on one side of the equation and solve by plugging your values

d=v2i−v2f2a

d=(15.02−10.02)m2s−22⋅2.0ms−2

d=31.3 m

To get the time needed to reach this speed, i.e. 10.0 m/s, you can use the following equation

vf=vi−a⋅t, which will get you

t=vi−vfa

t=(15.0−10.0)ms2.0ms2=2.5 s

6 0
3 years ago
HW 3 a : Power Supply LTspice Design a resistor/LED circuit such that the diode will be brightly let when V out i s 5 volts. Ass
nadya68 [22]

Answer:

68 ohm

Explanation:

Output Voltage, Vout = 5 V

Forward voltage, Vf = 3.65 V

Forward current, If = 20 mA = 0.02 A

Let the resistance is R.

Use the formula

I_{f}=\frac{V_{out}-V_{f}}{R}

0.02=\frac{5-3.65}{R}

R = 67.5 ohm

R = 68 ohm ( approx.)

4 0
3 years ago
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