2 years ago

Which statement does NOT describe redesign?

Physics

1 answer:

pantera1 [17]2 years ago

4 0

D. It happens all the time

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How many meters is in 32 km

alina1380 [7]

Answer:

32000 m

Explanation:

1000m in 1 km, so 32000m in 32 km.

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3 years ago

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Select all that apply.

ryzh [129]

Answer:

All of above.

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2 years ago

A person in a kayak starts paddling, and it accelerates from 0 to 0.680 m/s in a distance of 0.428 m. If the combined mass of th

d1i1m1o1n [39]

Answer:

Net force, F = 44.66 N

Explanation:

It is given by,

Initial velocity of the person, u = 0

Final velocity of the person, v = 0.68 m/s

Distance, s = 0.428 m

Combined mass of the person and the kayak, m = 82.7 kg

We need to find the net force acting on the kayak i.e.

F = ma...........(1)

Firstly, we will calculate the value of "a" from third equation of motion as :

$v^2-u^2=2as$

$a=\dfrac{v^2-u^2}{2s}$

$a=\dfrac{(0.68\ m/s)^2-0}{2\times 0.428\ m}$

$a=0.54\ m/s^2$

Put the value of a in equation (1) as :

$F=82.7\ kg\times 0.54\ m/s^2$

F = 44.66 N

So, the net force acting on the kayak is 44.66 N. Hence, this is the required solution.

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3 years ago

Where does fusion regularly occur and what kind of energy is produced

AlexFokin [52]

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A 20,000 kg truck is traveling at 10 m/s. Calculate the truck's momentum. (p = m v)

kow [346]

Answer:

200,000 and 20,000,000

Explanation:

Substituting the values into the equation of momentum, we get that the momentum is p = mv = 20,000*10 = 200,000. Using the equation provided to solve for the force the truck experienced, we find: 20,000*10/0.01 = 20,000,000.

I hope this helps!

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3 years ago