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Paul [167]
3 years ago
8

Disadvantage of metal

Engineering
1 answer:
ivolga24 [154]3 years ago
7 0
You can get hurt if u don’t use it properly.
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A motor car shaft consists of a steel tube 30 mm internal diameter and 4 mm thick. The engine develops 10 kW at 2000 r.p.m. Find
tresset_1 [31]

The maximum shear stress in the tube when the power is transmitted through a 4: 1 gearing is 28.98 MPa.

<h3>What is power?</h3>

Power is the energy transferred per unit time.

Torque is find out by

P = 2πNT/60

10000 = 2π x 2000 x T / 60

T =47.74 N.m

The gear ratio Ne / Ns =4/1

Ns =2000/4 = 500

Ts =Ps x 60/(2π x 500)

Ts =190.96 N.m

Maximum shear stress τ = 16/π x (T / (d₀⁴ - d₁⁴))

τ max =T/J x D/2
where d₁ = 30mm = 0.03 m

           d₀ = 30 +(2x 4) = 38mm =0.038 m

Substitute the values into the equation, we get

τ max = 16 x 190.96 x 0.038 /π x (0.038⁴ - 0.03⁴)

τ max = 28.98 MPa.

Thus, the maximum shear stress in the tube is 28.98 MPa.

Learn more about power.

brainly.com/question/13385520

#SPJ1

7 0
2 years ago
Two small balls A and B with masses 2m and m respectively are released from rest at a height h above the ground. Neglecting air
statuscvo [17]

Answer:

The kinetic energy of A is twice the kinetic energy of B

Explanation:

5 0
4 years ago
Can you list three ways that real life earthquake conditions may differ from those made by a shaking table
jolli1 [7]

Answer:

No

Explanation:

8 0
3 years ago
A ramjet operates by taking in air at the inlet, providing fuel for combustion, and exhausting the hot air through the exit. Th
UNO [17]

Answer:

15300 N

Explanation:

\rho_i = Density of air at inlet

\dfrac{m}{t} = Mass flow rate = 60 kg/s

v_i = Inlet velocity = 225 m/s

\rho_o = Density of gas at outlet = 0.25\ \text{kg/m}^3

A_i = Inlet area

A_o = Outlet area = 0.5\ \text{m}^2

Since mass flow rate is the same in the inlet and outlet we have

\rho_iv_iA_i=\rho_ov_oA_o\\\Rightarrow v_o=\dfrac{\dfrac{m}{t}}{\rho_oA_o}\\\Rightarrow v_o=\dfrac{60}{0.25\times 0.5}\\\Rightarrow v_o=480\ \text{m/s}

Thrust is given by

F=\dfrac{m}{t}(v_o-v_i)\\\Rightarrow F=60\times (480-225)\\\Rightarrow F=15300\ \text{N}

The thrust generated is 15300 N.

8 0
3 years ago
Which option identifies what engineers will do to help in the following scenario?
Tasya [4]

Answer:

a

Explanation:

4 0
3 years ago
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