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3 years ago

Which combination of elements below results in a metallic bond?

Physics

1 answer:

Amiraneli [1.4K]3 years ago

3 0

Answer:

there isn't anything else posted to the question when you ask a question put a picture or write it out so people can see it

Explanation:

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the pilot of a new stealth helicopter, which has a mass of 15000 kg and was traveling at 180 m/s, accelerated to 250 m/s in 6 s

nirvana33 [79]

Answer:

Force = 175000 newtons

Final momentum = 1050000 N*S

Explanation:

We know that force is equal to Mass * acceleration

We also know that the mass of object is 15,000kg.

We know acceleration is (change in velocity)/time

Our initial velocity is 180m/s

our final velocity is 250 m/s

the time it took was 6 seconds

our change in velocity is 250 - 180 = 70

the time it took was 6 seconds

a = 70/6 = 11.67 m/s^2

So we can calculate force, by doing Mass * Acceleration, which is 15,000 * 11.67

Force is 175000 Newton's

Momentum is calculated by Velocity * mass or Force * time

we could do either one

velocity * mass way

we are given final velocity is 250 m/s, and that the initial velocity is 180 m/s. We first have to find the change in velocity by subtracting final and initial and get 70, and then we multiply that by the mass, which is 15000 kg.

we multiply them together and get 1050000 Kg*m/s

Force * time way

We just calculated the force above, and got 175050 newton's. from that we just multiply by the time, which is 6 seconds

and we get a result of

1050000 Newton*seconds

*** remember newton*seconds is the same as kg*m/s

8 0

3 years ago

The most distal part of a nail is called the ____________ . The most proximal part of the nail that is embedded in the skin is t

ankoles [38]

Answer:

1.Free edge

2.Nail Root

3.Nail matrix

4.lunula

Note: The numbering coincides respectively with the dashes in the questions.

Explanation:

Free edge is the distal white nail ending.

Nail Root is the proximal part of the nail embedded in the skin.

Nail matrix is the actively growing part of the nail were the nail root thickens

Lunula the whitish semilunar area of the proximal end of the nail body it appears whitish because stratum basala obscures. the underlying blood vessels.

7 0

3 years ago

The driver of a car applies the brakes for 4.0 s.As a result an average force of 7500N is exerted in the car to slow it down.Wha

Sindrei [870]

Answer:

The change in momentum of the car is 30,000 kg m/s

Explanation:

Given,

The force exerted on the car to slow down, F = 7500 N

The time period of force, t = 4 s

The rate of change of momentum of the object is equal to the force acting on it.

Therefore,

(mv - mu) / t = F

Where v and u are the final and initial velocity of the car. The change in momentum of the car,

mv - mu = F x t

= 7500 x 4

= 30,000 kg m/s

Hence the change in momentum of the car is 30,000 kg m/s

7 0

3 years ago

What is the chemical name for a sand

vovikov84 [41]

It is known as silicon dioxide or silica!

Hope this helps!

7 0

3 years ago

A 1600 kg sedan goes through a wide intersection traveling from north to south when it is hit by a 2000 kg SUV traveling from ea

skad [1K]

Answer:

v = 11.1m/s

Vx = 7.19m/s

Vy = 8.45m/s

V(sedan) = 30.4m/s

V(suv) = 25.9m/s

Explanation:

4 0

3 years ago