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Olenka [21]
3 years ago
7

Reading Africa's Big Break

Physics
1 answer:
ANTONII [103]3 years ago
5 0

Explanation:

the passage is to inform the reader to opportunity to take part in the gathering

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What is the momentum of a 800 kg car traveling at 20 m/s
BabaBlast [244]

<u>Answer:</u> The momentum of the car is 16000 kg.m/s

<u>Explanation:</u>

Momentum is defined as the force that keeps the object moving. It is also defined as the product of mass and velocity of an object.

Mathematically,

p=m\times v

where,

p = momentum of the car = ?

m = mass of the car = 800 kg

v = velocity of the car = 20 m/s

Putting values in above equation, we get:

p=800kg\times 20m/s\\\\p=16000kg.m/s

Hence, the momentum of the car is 16000 kg.m/s

5 0
3 years ago
Read 2 more answers
A foam material has a density of 175 g/l. what is its density in units of lb/ft3?
Oksi-84 [34.3K]

The solution would be like this for this specific problem:

 

Given: 175 g/L

1 gram/liter  =  0.06242796 pound/cubic foot

175 g/L * 0.06242796 pound/cubic foot

= 10.924893 lb/ft3

So, a foam material has a density of 10.924893 lb/ft3 in units of lb/ft3.

4 0
3 years ago
All of the following are examples of mechanical energy except:
Paladinen [302]
The answer is B. The nuclei of elements.
8 0
3 years ago
When one end of iron poker is put into the edge of a fire the other end of the poker gets hot due to what the heat transfers?
Greeley [361]

Answer:

The answer is B) Conduction

5 0
3 years ago
Read 2 more answers
When is the magnitude of the acceleration of a mass on a spring at its maximum value?
DiKsa [7]

Answer:

D

Explanation:

Now we know that Force is the rate of change of momentum meaning

F= mv/t

But

mv/t = Ke

v/t = ke/m

a= ke/m

Where a is acceleration

K is constant of proportionality of tension on a spring

e is the extension substended by a string.

From the formula of acceleration we can see that as mass decreases acceleration increases so we can see that m = 1

We would have a maximum value of acceleration.

6 0
4 years ago
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