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Lilit [14]
3 years ago
13

Congress can pass laws concerning ___. (Select all that apply.)

Engineering
1 answer:
Dovator [93]3 years ago
6 0

Answer: What laws can Congress pass?

What Congress Does

Make laws.

Declare war.

Raise and provide public money and oversee its proper expenditure.

Impeach and try federal officers.

Approve presidential appointments.

Approve treaties negotiated by the executive branch.

Oversight and investigations.

Explanation:

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A scale on a blue print drawing of a house shows that 666 centimeters represents 333 meters.
Dennis_Churaev [7]

Answer:

545454cm

Explanation:

The blue print drawing of the house shows 666 centimeters, but the real picture of the house is 333 meters. So let the number of cm on the blueprint that represent the distance of 272727 meters be x. Firstly convert the meters to centimeters 666cm = 333m, x=272727m ; then cross multiply, 666cm=33300cm x=27272700cm ; x =(666cm×272727cm)/33300cm =545454cm.

4 0
3 years ago
The hoist of a crane consists of a 10 kW electric motor running at 1440 rpm drivine 300 mm diameter drunn through a 60:1 gear re
MissTica

Answer:

 Load =  2.42 tons

Lifting speed = 24 RPM

Explanation:

Given that

Power=10 KW

Efficiency = 90%

So the actual power,P=0.9 x 10 =9 KW

Speed of motor = 1440 RPM

Diameter of drum = 300 mm

radius =150 mm

G=60:1

Lets take speed of drum =N

We know that

G=\dfrac{Speed\ of\ motor}{Speed\ of\ drum}

60=\dfrac{1440}{N}

N=24 RPM

We know that

P=\dfrac{2\pi NT}{60}

Where T is the torque

9000=\dfrac{2\pi \times 24\times T}{60}

T=3580.98 N.m

Lets take load =F

So T= F x r

3580.98 = F x 0.15

F=23.87 KN

We know that

1 KN=0.109 tons

So 23.87 KN= 2.42 tons

So the load =  2.42 tons

Lifting speed = 24 RPM

8 0
3 years ago
The free convection heat transfer coefficient on a thin hot vertical plate suspended in still air can be determined from observa
damaskus [11]

Answer:

h = 6.35 W/m².k

Explanation:

In order to solve this problem, we will use energy balance, taking the thin hot plate as a system. According to energy balance, the rate of heat transfer to surrounding through convection must be equal to the energy stored in the plate:

Rate of Heat Transfer Through Convection = Energy Stored in Plate

- h A (Ts - T₀) = m C dT/dt

where,

h = convection heat transfer coefficient = ?

A = Surface area of plate through which heat transfer takes place = 2 x 0.3 m x 0.3 m (2 is multiplied for two sides of thin plate) = 0.18 m²

Ts = Surface Temperature of hot thin plate = 225⁰C

T₀ = Ambient Temperature = 25°C

m = mass of plate = 3.75 kg

C = Specific Heat = 2770 J/kg. k

dT/dt = rate of change in plate temperature = - 0.022 K/s

Therefore,

- h (0.18 m²)(225 - 25) k = (3.75 kg)(2770 J/kg.k)(- 0.022 k/s)

h = (- 228.525 W)/(- 36 m².k)

<u>h = 6.35 W/m².k</u>

4 0
3 years ago
PLZ HELP ME!! Can someone plz give me a summary on engineering in 3-5 sentences.
myrzilka [38]
Engineering is about building things, learning how to build things and it being fun
4 0
3 years ago
Indentify the common types of conductors used for: a. Distribution lines (33kV and below) b. Transmission lines (66kV and above)
fiasKO [112]
Wassup my big boy James with the Ghent branew air fork one nigh
8 0
3 years ago
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