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Usimov [2.4K]
3 years ago
11

Rank in terms of momentum

Physics
1 answer:
eduard3 years ago
7 0

Answer:

See the explanation below,

Explanation:

Momentum is defined as the product of mass by Velocity. In this way, we will replace the following equation in each of the cases.

P=m*v

where:

P = momentum [kg*m/s]

m = mass [kg]

v = velocity [m/s]

A)

P = 10000*0\\P=0

B)

P=100*5\\P=500[kg*m/s]

C)

P=1200*15\\P=18000[kg*m/s]

D)

P=15*1000\\P=15000[kg*m/s]

From higher to lower momentum

C,D,B,A

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Mandarinka [93]

Answer:

(E) none of these.

Explanation:

first that all we need the meaning of a Watt

<em>" is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 </em><em>joule</em><em> per </em><em>second</em><em>,[1] and is used to quantify the rate of </em><em>energy</em><em> transfer."  </em>

<em>definition taken from wikipedia.org</em>

now with this concept we have that:

100 W means 100 J/s .Therefore it uses 100 J energy per second

therefore on the answers don't mention this three terms together

Joules, energy and second so the answer must be.

(E) None of these

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3 years ago
A circuit has a current of 3.6 A and a resistance of 5.0 Ω. What is the voltage applied to the circuit?
Inessa [10]

The key formula ===> Voltage = (current) x (resistance)

Plug in the numbers given ===> Voltage = (3.6 A) x (5.0 ohms)

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3 years ago
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What feature will form as a result of the movement displayed in this illustration?
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A convergent boundary is correct
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Leg A: v = S/t = 15 km/10 min = 1,5 km/min
Leg B: v = S/t = 20 km/15 min = 1 1/3 km/min
Leg C: v = S/t = 24 km/12 min = 2 km/min
Leg D: v = S/t = 36 km/9 min = 4 km/min
Leg E: v = S/t = 14 km/14 min = 1 km/min

Sequence: (leg) E - B - A - C - D
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3 years ago
A horizontal board of length 6.1 m and mass 12.8 kg rests on two supports. The first support is at one end of the board. The sec
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Answer:102.84 N

Explanation:

Given

Mass of board m=12.8\ kg

Length of board l=6.1\ m

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Suppose R_1 and R_2 are the reactions at the two support

Taking moment about the first end we can write

mg\times \dfrac{6.1}{2}-R_2(6.1-2.38)=0

R_2=\dfrac{12.8\times 9.8 \times 3.05}{3.72}

R_2=102.84\ N    

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