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4 years ago

A chemical reaction that has the general formula of AB + C → CB + A is best classified as a reaction.

Physics

2 answers:

MissTica4 years ago

7 0

Answer:

Single replacement

Explanation:

A reaction in which one element replaces a similar element is called single replacement. In this case, C is replacing A.

NARA [144]4 years ago

5 0

The correct answer is E. A chemical reaction that has the general formula of AB + C → CB + A is best classified as a replacement reaction. Please mark me brainliest!!!

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Lenses can be found in a variety of objects which example does not have a lens?

Burka [1]

Tbh ! All of them have lens but I would go with B.) Smart Phone

Hope This Helps !!!

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4 years ago

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An object has 90000 J of kinetic energy and is moving at 12 m/s. what is the objects mass?

Klio2033 [76]

Answer:

1250kg

Explanation:

we can solve this using the formula for the Kinetic Energy

$Kinetic.Energy=\frac{1}{2}*mass*velocity^{2}\\mass=\frac{2*Kinetic.Energy}{velocity^{2}}\\mass=\frac{2*90000}{12^{2}}\\\\mass=1250kg$

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4 years ago

A 4,000 kg truck is moving at +10 m/s hits a 1500 kg parked car which moves off at +10 m/s. What is the velocity of the truck

Igoryamba

Answer:

10m/s

Explanation:

Using the law of conservation of momentums

M1u1+m2u2 = (m1+m2)v

Substitute.

4000(10)+1500(10) = (4000+1500)v

40,000+15,000 = 5,500v

55000 = 5500v

v = 55000/5500

v= 10m/s

Hence the velocity of the truck after Collision is 10m/s

6 0

3 years ago

Two protons are 1 × 10−10 m apart (about one atomic radius). Which interaction between two protons is stronger, the gravitationa

anastassius [24]

Answer: The electric repulsion between the two protons is stronger than the gravitational attraction.

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4 0

4 years ago

what is the focalength of the combination of two thin renses of power -5D and -2D placeci in contact with each other?

Ghella [55]

Answer:

f = - 0.143 m = - 14.3 cm

Explanation:

First, we will calculate the power of the combination of lenses:

P = P₁ + P₂

where,

P = Power of Combination = ?

P₁ = Power of first lens = - 5D

P₂ = Power of second lens = - 2D

Therefore,

P = - 5D - 2D

P = - 7D

Now, the focal length can be given as:

$f = \frac{1}{P} \\\\f = \frac{1}{-\ 7\ D} \\\\$

Negative focal length indicates that combination will act as diverging lens.

6 0

3 years ago