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Hatshy [7]
3 years ago
10

When you can do it safely, _____ instead of relying heavily on your brakes. A. Use your emergency brake B. Roll through STOP sig

ns C. Coast to a stop D. Weave side to side
Engineering
2 answers:
olganol [36]3 years ago
8 0

Answer:

A. Use your emergency brake

Explanation:

The function of the handbrake is to immobilize the vehicle. If we forget it when parking, we run the risk of the car moving with any contact. For example, if another vehicle hits you from behind, it could move causing an accident or hitting the car in front.

Do not forget to remove the handbrake before starting. If we drive with the handbrake on, the clutch and brakes will wear quickly. Similarly, it is not advisable to use it when hydraulic brakes fail, and less if the vehicle is going at high speed.

The best way to care for the handbrake is to use it only when parking the vehicle. The handbrake has cables that allow pressure on the wheel brakes, and this helps the hydraulic brakes not wear out. In turn, vehicles with disc brakes on the rear wheels have a mechanism called a self-adjuster, which keeps the brake pads aligned avoiding wear.

If we feel any annoying sound when braking, or the braking distance is longer than usual, there is probably a problem with the brake pads. The handbrake and hydraulic brake work under different mechanisms, so whenever you feel that there is a problem with braking, you should consult the mechanic.

If the car is automatic, when is the parking brake used? In the case of cars with automatic transmission, when parking the car is at P and the transmission is immobilized. If the vehicle is on a flat surface, this part exerts little pressure, but if it is on a slope, the entire weight of the vehicle rests on the brake and the transmission itself, therefore the parking brake must be applied.

sertanlavr [38]3 years ago
6 0

Answer:

coast to a stop

Explanation:

Emergency brakes are only for emergencies (and will not increase fuel efficiency). When you can do it safely, coast to a stop instead of relying heavily on your brakes. If you can see a red light ahead, there's no point in maintaining your speed all the way up to the braking point: you'll still have to sit behind the light until it changes. Instead, try taking your foot off the accelerator and coasting to a stop. You'll still need to brake at the end, but you'll use less gas and add less wear and tear to your brakes.

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Steam at 1400 kPa and 350°C [state 1] enters a turbine through a pipe that is 8 cm in diameter, at a mass flow rate of 0.1 kg⋅s−
sergeinik [125]

Answer:

Power output, P_{out} = 178.56 kW

Given:

Pressure of steam, P = 1400 kPa

Temperature of steam, T = 350^{\circ}C

Diameter of pipe, d = 8 cm = 0.08 m

Mass flow rate, \dot{m} = 0.1 kg.s^{- 1}

Diameter of exhaust pipe, d_{h} = 15 cm = 0.15 m

Pressure at exhaust, P' = 50 kPa

temperature, T' =  100^{\circ}C

Solution:

Now, calculation of the velocity of fluid at state 1 inlet:

\dot{m} = \frac{Av_{i}}{V_{1}}

0.1 = \frac{\frac{\pi d^{2}}{4}v_{i}}{0.2004}

0.1 = \frac{\frac{\pi 0.08^{2}}{4}v_{i}}{0.2004}

v_{i} = 3.986 m/s

Now, eqn for compressible fluid:

\rho_{1}v_{i}A_{1} = \rho_{2}v_{e}A_{2}

Now,

\frac{A_{1}v_{i}}{V_{1}} = \frac{A_{2}v_{e}}{V_{2}}

\frac{\frac{\pi d_{i}^{2}}{4}v_{i}}{V_{1}} = \frac{\frac{\pi d_{e}^{2}}{4}v_{e}}{V_{2}}

\frac{\frac{\pi \times 0.08^{2}}{4}\times 3.986}{0.2004} = \frac{\frac{\pi 0.15^{2}}{4}v_{e}}{3.418}

v_{e} = 19.33 m/s

Now, the power output can be calculated from the energy balance eqn:

P_{out} = -\dot{m}W_{s}

P_{out} = -\dot{m}(H_{2} - H_{1}) + \frac{v_{e}^{2} - v_{i}^{2}}{2}

P_{out} = - 0.1(3.4181 - 0.2004) + \frac{19.33^{2} - 3.986^{2}}{2} = 178.56 kW

4 0
3 years ago
5. If you designed a part with an overall width dimension of 1.250 inches and printed it on the same 3D printer using the same f
sleet_krkn [62]

Answer:

hu22 54=52222222222222

3 0
3 years ago
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Dennis_Churaev [7]
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3 years ago
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Using what you know about the NAND gate, draw how you could implement a three-input NAND gate using NMOS and PMOS transistors. T
Yuliya22 [10]

Answer:

use this, it should help you understand

Explanation:

https://www.electronics-tutorials.ws/logic/logic_5.html

4 0
3 years ago
Consider a steel pan used to boil water on top of an electric range. The bottom section of the pan is L = 0.5 cm thick and has a
Travka [436]

Answer:

-Differential equation: d²T/dx² = 0

-The boundary conditions are;

1) Heat flux at bottom;

-KAdT(0)/dx = ηq_e

2) Heat flux at top surface;

-KdT(L)/dx = h(T(L) - T(water))

Explanation:

To solve this question, let's work with the following assumptions that we are given;

- Heat transfer is steady and one dimensional

- Thermal conductivity is constant.

- No heat generation exists in the medium

- The top surface which is at x = L will be subjected to convection while the bottom surface which is at x = 0 will be subjected to uniform heat flux.

Will all those assumptions given, the differential equation can be expressed as; d²T/dx² = 0

Now the boundary conditions are;

1) Heat flux at bottom;

q(at x = 0) is;

-KAdT(0)/dx = ηq_e

2) Heat flux at top surface;

q(at x = L):

-KdT(L)/dx = h(T(L) - T(water))

5 0
3 years ago
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