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dexar [7]
4 years ago
7

What volume of copper has a mass of 7.5 kg?​

Physics
1 answer:
Vinil7 [7]4 years ago
8 0

Answer:

839.58 cm3 4.

Explanation:

there is a formula im unsure about that part.

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What force does the water exert (in addition to that due to atmospheric pressure) on a submarine window of radius 44.0 cm at a d
Butoxors [25]
Calculate the pressure due to sea water as density*depth.
That is, 
pressure = (1025 kg/m^3)*((9400 m)*(9.8 m/s^2) = 94423000 Pa = 94423 kPa

Atmospheric pressure is  101.3 kPa
Total pressure is  94423 + 101.3 = 94524 kPa (approx)

The area of the window is π(0.44 m)^2 = 0.6082 m^2

The force on the window is
(94524 kPa)*(0.6082 m^2) = 57489.7 kN = 57.5 MN approx
3 0
4 years ago
Please help don’t know how to show my work
Fudgin [204]

Answer:

64.50816

Explanation:

3 0
3 years ago
Why is there no drag in space?????? Help me please!!! Thanks!!!
astraxan [27]
It is beacuse of fluid If there is no fluid, there is no drag. Drag is generated by the difference in velocity between the solid object and the fluid. If this statement is correct then how can there be drag in space if there is no air?
7 0
4 years ago
Read 2 more answers
g A rotating wheel requires 5.00 s to rotate 28.0 revolutions. Its angular velocity at the end of the 5.00-s interval is 96.0 ra
Setler [38]

Answer:

The angular acceleration of the wheel is 15.21 rad/s².

Explanation:

Given that,

Time = 5 sec

Final angular velocity = 96.0 rad/s

Angular displacement = 28.0 rev = 175.84 rad

Let \alpha be the angular acceleration

We need to calculate the angular acceleration

Using equation of motion

\theta=\omega_{i} t+\dfrac{1}{2}\alpha t^2

Put the value in the equation

175.84=\omega_{i}\times 5+\dfrac{1}{2}\times\alpha\times(5)^2

175.84=\omega_{i}\times 5+12.5\alpha......(I)

Again using equation of motion

\omega_{f}=\omega_{i}+\alpha t

Put the value in the equation

96.0=\omega_{i}+\alpha \times 5

On multiply by 5 in both sides

480=\omega_{i}\times 5+\alpha\times 25....(II)

On subtract equation (I) from equation (II)

480-175.84=\alpha(25-5)

304.16=\alpha\times20

\alpha=\dfrac{304.16}{20}

\alpha=15.21\ rad/s^2

Hence, The angular acceleration of the wheel is 15.21 rad/s².

5 0
3 years ago
Which type of motorcycle features rear-positioned footrests, high power-to-weight ratio, and a forward leaning ride
VladimirAG [237]

Sport-type motorcycles typically feature a higher than average power-to-weight ratio.

  • Sport-style motorcycles often have a power-to-weight ratio that is above average.
  • Fuel refers to opening the fuel supply valve, if available.
  • Set the choke and squeeze the clutch lever together is referred known as "choke and clutch."
  • Even though some motorcycles lack a choke, the choke should be ON for a cold engine.

What is scrambler motorcycle?

  • Scrambler motorbikes, also referred to as dirt bikes, have special features designed for off-road activities and sports.
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  • Scrambler bicycles feature relatively straightforward designs, long suspensions, and high ground clearance.

Learn more about Scrambler motorbikes

brainly.com/question/24915434

#SPJ4

8 0
2 years ago
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