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raketka [301]
2 years ago
3

You would like to know whether silicon will float in mercury and you know that can determine this based on their densities. unfo

rtunately, you have the density of mercury in units of kilogrammeter3 and the density of silicon in other units: 2.33 gramcentimeter3. you decide to convert the density of silicon into units of kilogrammeter3 to perform the comparison. by which combination of conversion factors will you multiply 2.33 gramcentimeter3 to perform the unit conversion?

Physics
2 answers:
Step2247 [10]2 years ago
3 0
This is my answer am I correct

Lera25 [3.4K]2 years ago
3 0

The answer is; by a factor of 1000

1 g/cm3 is equal to 1000 kilogram/cubic meter  or alternatively 0.001 g/cm3 is equal to 1 kg/m3 . Therefore to convert the 2.33 gramcentimeter3 to kgm3 then multiply it by 1000.

2.33 *1000 = 2330

2.33 gcm3 = 2330kgm3


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Answer:

The torque on the wrench is 4.188 Nm

Explanation:

Let r = xi + yj where is the distance of the applied force to the origin.

Since x = 18 cm = 0.18 cm and y = 5.5 cm = 0.055 cm,

r = 0.18i + 0.055j

The applied force f = 88i - 23j

The torque τ = r × F

So, τ = r × F = (0.18i + 0.055j) × (88i - 23j) = 0.18i × 88i + 0.18i × -23j + 0.055j × 88i + 0.055j × -23j

= (0.18 × 88)i × i + (0.18 × -23)i × j + (0.055 × 88)j × i + (0.055 × -22)j × j  

= (0.18 × 88) × 0 + (0.18 × -23) × k + (0.055 × 88) × (-k) + (0.055 × -22) × 0   since i × i = 0, j × j = 0, i × j = k and j × i = -k

= 0 - 4.14k + 0.0484(-k) + 0

= -4.14k - 0.0484k

= -4.1884k Nm

≅ -4.188k Nm

So, the torque on the wrench is 4.188 Nm

8 0
2 years ago
Which formula is used to find fluctuation of the shape of body
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Answer:

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Explanation:

This is Einstein's equation.

5 0
2 years ago
Determine the torque applied to the shaft of a car that transmits 225 hp
Arisa [49]

Incomplete question.The complete question is here

Determine the torque applied to the shaft of a car that transmits 225 hp and rotates at a rate of 3000 rpm.

Answer:

Torque=0.51 Btu

Explanation:

Given Data

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Revolutions =3000 rpm

To find

T( torque )=?

Solution

As

T(Torque)=\frac{W(Work)}{2\pi n(Revolutions) }

As force moves an object through a distance, work is done on the object. Likewise, when a torque rotates an object through an angle, work is done.

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8 0
2 years ago
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Citrus2011 [14]
The sentence can be completed as follows:

<span>The motion of an object moving with uniform circular motion is always tangential to the circle, so the speed of an object moving in a circle is known as tangential speed.

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8 0
2 years ago
Read 2 more answers
A tennis player serves a tennis ball such that it is moving horizontally when it leaves the racquet. When the ball travels a hor
nalin [4]

Answer:

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Explanation:

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We know that g is the constant acceleration in the vertical direction so we can apply the equation of motion in the vertical direction.

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S= 57 cm

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x=u_xt

Here x=13 m

t= 0.34 s

So

13=u_x\times 0.34

u_x=38.13\ m/s

So the initial speed of ball is 38.13 m/s.

7 0
2 years ago
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