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AnnyKZ [126]
3 years ago
15

A chemist has two compounds that do not chemically react. He thinks that by finding the right catalyst, he can get them to react

. Why is the chemist incorrect?
Physics
1 answer:
Wewaii [24]3 years ago
4 0
A scientific expert has two exacerbates that don't synthetically respond. He believes that by finding the correct impetus, he can inspire them to respond. The physicist is wrong on the grounds that the impetuses can just build the rate of response for exacerbates that do respond.
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A 1300 kg car moving at 20 m/s and a 900 kg car moving at 15 m/s in precisely oppositedirections participate in a head-on crash.
miskamm [114]

Given

Car 1

m1 = 1300 kg

v1 = 20 m/s

m2 = 900 kg

v2 = -15 m/s

(Negative sign shows that direction of car 2 is opposite to car 1)

Procedure

As per the conservation of linear momentum, "The total momentum of the system before the collision must be equal to the total momentum after the collision". And this applies to the perfectly inelastic collision as well. Then the expression is,

\begin{gathered} m_1v_1+m_2v_2=(m_1+m_2)v \\ v=\frac{m_1v_1+m_2v_2}{m_1+m_2} \\ v=\frac{1300\operatorname{kg}\cdot20m/s-900\operatorname{kg}\cdot15m/s}{1300\operatorname{kg}+900\operatorname{kg}} \\ v=5.681m/s \end{gathered}

Thus, we can conclude that the speed and direction of the cars after the impact is 5.68 m/s towards the first car.

5 0
1 year ago
Which type of energy is released when a bond between atoms is broken
scoray [572]

Answer:

D

Explanation:

7 0
3 years ago
In a wheel and axle, the radius of the wheel is 20 cm and the radius of the axle is 4 cm. What is the mechanical advantage?
aliya0001 [1]
The answer is 5. To find the advantage you just divide 20 by 4.
4 0
2 years ago
Read 2 more answers
The ability to pick up small objects, to stack objects, and to carry objects appears first during which time period?
aliya0001 [1]
 the answer is B 4-6 months thats when they can pick up large objects.
8 0
2 years ago
Read 2 more answers
The mass of a carbon atom is 12. 00amu while the mass of a helium-4 atom is 4. 003amu. If three atoms of helium fuse to form car
Naily [24]

If three atoms of helium fuse to form carbon than 0.009 u of mass is converted into energy

Given: m(He) = 4.003 u

and m(C) = 12.000 u

Mass of 3 alpha particles =3×4.003 u

                                       =12.009 u.

Mass of 1 carbon atom=12.000 u

Mass Defect =△m=12.009−12.000=0.009 u

Energy released =0.009×931.5=8.3835 MeV.

So, 0.009 u of mass is converted into 8.38 Mev energy.

To learn more about Fusion visit here; brainly.com/question/14445690?referrer=searchResults

#SPJ4

4 0
1 year ago
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