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Sindrei [870]
3 years ago
14

If steel is more dense than lake water, why can a boat float?

Physics
2 answers:
Ivenika [448]3 years ago
7 0

The average density of the boat, including the steel and air, is less dense than 1.00 g/cm³.

Setler [38]3 years ago
4 0

Answer:

<h2><em><u>A </u></em></h2>

Explanation:

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Find the magnitude of the impulse delivered to a soccer ball when a player kicks it with a force of 1450 N . Assume that the pla
juin [17]

To solve this problem we will apply the concept of Impulse. Which is described as the product between the Force and the change in time. Mathematically this can be described as

I = F \Delta t

Where,

F = Force

\Delta t= Time

Our values are given as,

F = 1450N

\Delta t = 5.1*10^{-3} s

Replacing we have,

I = (1450)(5.1*10^{-3})

I = 7.395Kg\cdot m/s

Therefore the impulse delivered to the soccer ball is 7.395Kg\cdot m/s or  7.395N\cdot s

4 0
3 years ago
A 1250 kg Nascar is at the starting line. The race starts and the car reaches a speed of 30
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Answer:

force=1250kg * 30m/s+10

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3 years ago
I need help on both questions
iris [78.8K]
It's not in motion when the line straight and flat . there's #9
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Grace drives her car 168 km in 2 hours. What is her average speed in kilometers per hour?
wlad13 [49]

Answer:

84kliometers

Explanation:

divide one hundred and sixty eight kilo meters by two hours

5 0
3 years ago
Help me find the natural logarithum of csch^-1 ((-1)/(2 sqrt(30)))
SVEN [57.7K]

The inverse hyperbolic cosecant of anything is a negative number.

In particular, csch⁻¹ [ (-1)/(2√30) ] = csch⁻¹ (≈ -0.0913) = ≈ -3.089

Whatever it is, negative numbers don't have logarithms.

3 0
4 years ago
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