Answer:
The minimum distance, d, between the cars so as to avoid collision is approximately 5.1304 feet
Explanation:
The given parameters are;
The distance of car B ahead of car A = d
The initial speed of both car A and car B = 80 ft./s
The deceleration of car B due to the application of the breaks = 10 ft./s²
The reaction time of the driver of car A = 0.65 s
The deceleration of the driver of car A = 17 ft./s²
To avoid collision, we have;
v² = u² - 2·a·s
Where;
v = The final velocity
u = The initial velocity
a = The acceleration
s = The distance covered
Where the car B comes to rest, we have, v = 0, therefore;
0² = u² - 2·a·s
u² = 2·a·s
s = u²/(2·a)
The distance travelled by car B before coming to rest, s, is therefore;
s = (80 ft./s)²/(2 × 10 ft./s²) = 320 ft.
The distance travelled by car A, after car B applies brakes, is given as follows;
The distance travelled at constant speed = u × Reaction time
∴ The distance travelled at constant speed = 80 ft./s × 0.65 s = 52 ft.
The distance, s, travelled by car A under deceleration is given as follows;
s = (80 ft./s)²/(2 × 17 ft./s²) = 188.24 ft.
s = 80·(t - 0.65) - (1/2)·17·(t - 0.65)² + 80 × 0.65 = d + 80·t - (1/2)·10·t²
∴ d = 80·(t - 0.65) - (1/2)·17·(t - 0.65)² + 80 × 0.65 - (80·t - (1/2)·10·t²)
d = -3.5·t² + 11.05·t - 3.59125
dd/dt = -7·t + 11.05 = 0
The time for the maximum distance for the cars to collide, t = 11.05/7
The maximum distance between the cars for collision, d = -3.5 × (11.05/7)² + 11.05 × (11.05/7) - 3.59125 ≈ 5.1304
Therefore, for no collision, the distance between the cars, d, should be approximately more than 5.1304 feet
define uniform velocity?
Uniform velocity refers to those velocity in which equal displacement is covered in equal interval of time....
The image shows a reconstruction of a pyramid with a square base. What is the best estimate for the volume of the pyramid?
A.
1,460,040 m3
B.
2,433,400 m3
C.
4,380,120 m3
D.
7,300,200 m3
Answer:
B 2,433,400 m3
Hope that helped you
Based on the calcualtions, the best estimate for the volume of the pyramid is: B. 2,433,400 m³.
How to calculate the volume of a pyramid.Mathematically, the volume of a pyramid is calculated by using this formula:
[tex]Volume = \frac{1}{3} \times base\;area \times height[/tex]
For the base area:
The area of a square is given by:
A = S²
A = 230²
A = 52,900 m².
Now, we can determine the volume:
Volume = 1/3 × 52,900 × 138
Volume = 2,433,400 m³.
Read more on pyramid here: brainly.com/question/16315790
2 accidentes que puede sufrir un fontanero, instalando una tubería.
Explanation:
sorry in dont know the ans
What is a differential in cars and what does it do?
Simply put, a differential is a system that transmits an engine's torque to the wheels. The differential takes the power from the engine and splits it, allowing the wheels to spin at different speeds. ... Turn it around a corner and you'll have no issues, as each wheel is able to turn independently from the other.
Software piracy occurs when
people steal things while sailing the seas.
someone steals software.
someone sells their own intellectual property.
someone shares gossip about other people.
Answer:
Someone steals software
Answer: Someone steals software.
Explanation:
A block plane comes
or
" in length
Answer:
Block planes vary in length from 3 to 7 inches (76 to 178 mm). The most common standard angled block planes have the blade angled at ~20°.
May you please rate my game out of ten, and also please telll me what I need to do to improve it, thx.
https://scratch.mit.edu/projects/510955319/
Hey hun^^
Your game was very fun. Here are a few bugs I found-
*At the beginning, the game flashed a few times before I could click start
*When I hit an obstacle the game froze and didn't take me back to the menu screen
*There are lots of obstacles. I suggest that you put levels and slowly make them easy to hard
Overall I rate this game an 8/10.
Great job!
~Alanna~
A/an_ Oscilloscope uses a cathode ray tube and displays all voltages.
Answer:
I think it’s B, digital
Explanation:
Explanation:
not digital for sure so A/an four-channel oscilloscope my best guess
Why are magnets been placed in speaker
___ is the most common and dangerous flammable found in an auto shop
Answer:
el neumatico es el inflable mas peligroso
Explanation:
Question 10: What is a K-turn?
Answer:
The three-point turn (sometimes called a Y-turn, K-turn, or broken U-turn) is the standard method of turning a vehicle around to face the opposite direction in a limited space, using forward and reverse gears. This is typically done when the road is too narrow for a U-turn.
When driving SUV it is recommended to place your thing
Answer:
Wh-
Explanation:
Which one is an example of a digital input?
Group of answer choices
Tilt sensor
Potentiometer
Photoresistor
Button
Answer:
I think the answer is button.
Explanation:
Which of the following was likely the cause of the innovation of the car airbag?
Select one:
a. Power
b. Luck
c. Wealth
d. Basic necessity
Answer:
D.
Explanation:
Due to the rising amounts of fatalities, air bags were enforced in all cars as a key safety feature. Since then, they have saved countless lives.
It is the same as force. b. Stress that is created by plate collision is the same everywhere and reflects the total force produced by the interacting plates. c. It is the change in shape produced by strain. d. Stress that is developed during orogeny can be different at various locations.
Answer:
Explanation:
ωωωωωωωωω
1.A holiday by the sea is …………………………than a holiday in the mountains. A.gooder B. better C. more good D. best
When turning left, which lane of the intersecting street should you turn onto?
Answer and Explanation:
The answer is the left lane on the far left of the street you our turning onto, when doing a left turn into it.
This is done for if someone on the road is turning right onto the same road you are turning to, in which they would take the right lane on the far right.
| | |
__| H | |__
R
L <-
__ ___
D ->
__| | X |___
| | |
X represents the position you are currently on.
D represents the lane with traffic going forward in front of you towards your right.
L represents the lane you need to turn to (the farthest left lane.
R represents the farthest right lane, in which car H would use to turn to.
H represents a car that would turn to position R (right lane).
I hope this helps!
#teamtrrees #PAW (Plant And Water)
Question 74
Which of the following would be required when towing a person on water skis
behind a PWC rated for two people?
A
power winch
B
reboarding ladder
С
rearview mirror (at least four inches by four inches)
D
rectangular red flag with a white diagonal stripe
Support
Answer:
C). rearview mirror (at least of four inches by four inches).
Explanation:
A 'rearview mirror' would be needed in case one is required to pull an individual on water skis after a PWC(personal watercraft) that is rated for carrying two persons only. This wide-angle mirror for rearview would allow the operator to monitor the person who is being towed constantly along with riding the ski at the same time. It is considered illegal to tow a person on a vessel without having a rearview mirror and at the same time, the limited capacity must also be followed strictly. Hence, option C is the correct answer.
please help me
give me all the answers
Answer:
I am sorry friend I can't
Answer:
how many answer in this question we have to tell
(-1) x (-1) x (-1)=
Answer:
(-1) x (-1) x (-1)=1×(-1)= -1
4. Partnership programs between schools and the owners
of local automotive service shops that allow students to
earn school credit and a wage by working in commercial
repair shops are called
Answer:
Automotive Technology Program
Explanation:
Basically hiring students for hands on training to learn the basics of mechanics.
An oscilloscope display grid or scale is called?
Answer:
An oscilloscope display grid or scale is called a graticule.
Explanation:
Answer:
I think the answer is graticule.
Explanation:
When selecting the appropriate gear for intended direction of travel, automatic transmission equipped vehicles should be placed in _______ while manual transmission equipped vehicles should be placed in ______. a) Drive, first gear b) First gear, second gear c) First gear, drive d) Second gear, first gear
Answer:
Automatic transmissions should be in Drive and Manual transmissions should be in first gear.
While driving your vehicle you see a red-colored traffic sign ahead. The red color means it is
A: A sign woming of hazardous waste cleanup activity bruide the roadway
B: A coratruction zone Hazard sign, or a construction to Speed Limitsign.
C: A Stop sign, Do Not Enter sign, or Wrong Way sign
Answer:
C. A Stop sign, Do Not Enter sign, or Wrong Way sign.
Explanation:
Oxides of nitrogen contribute to the formation of?
A. High levels of CO2.
B. Acid rain.
C. Photochemical smog.
D. Particulate emissions.
Answer:
B. Acid rain.
C. Photochemical smog.
Explanation:
Oxides of nitrogen contribute to the formation of photochemical smog and acid rain. Photochemical smog is a type of smog produced when ultraviolet light from the sun reacts with nitrogen oxides in the atmosphere while on the other hand, when nitrogen oxide react with the water vapor in the atmosphere forming nitric acid which falls on the earth surface with the help of precipitation.
If your accelerator pedal gets stuck, what is the first thing you should do?
If your accelerator gets stuck down, do the following: Shift to neutral. Apply the brakes. Keep your eyes on the road and look for a way out.If your accelerator gets stuck down, do the following:
Shift to neutral.
Apply the brakes.
Keep your eyes on the road and look for a way out.
Warn other drivers by blinking and flashing your hazard lights.
Try to drive the car safely off the road.
Turn off the ignition when you no longer need to change direction.
While driving on a rural road, your right wheels run off the pavement. You should hold the steering wheel firmly and
Guys I really need a lot of help on some engineering questions due tommorrow. If theres anyway your good at this topic pls coment or answer below so I can tell you the questions. Pls help a brodie out.. :(
Answer:
I might be able to help
i took engineering for a year so i might be of help! ill try my best but if not i do apologize
giải thích tại sao động cơ 2 kỳ lại bị khai tử
Answer:
Answer to the following question is as follows;
Explanation:
The regulations change made two-stroke bikes “outmoded” in six years. Casual fans and industry experts alike generally credit the advancement of progress and the necessity to decrease emissions as the major causes that led to the extinction of two-stroke-powered dirt equipment.
In a two-stroke engines, the conclusion of the combustion cycle and the start of the compression stage happen concurrently, as do the inlet and exhaust operations.
A carbon resistor has a resistance of 976 ohms at 0 degrees C. Determine its resistance at 89 degrees C
Answer:
1028.1184 Ohms
Explanation:
Given the following data;
Initial resistance, Ro = 976 OhmsInitial temperature, T1 = 0°CFinal temperature, T2 = 89°CAssuming the temperature coefficient of resistance for carbon at 0°C is equal to 0.0006 per degree Celsius.
To find determine its new resistance, we would use the mathematical expression for linear resistivity;
[tex] R_{89} = R_{0} + R_{0}(\alpha T) [/tex]
Substituting into the equation, we have;
[tex] R_{89} = 976 + 976*(0.0006*89) [/tex]
[tex] R_{89} = 976 + 976*(0.0534) [/tex]
[tex] R_{89} = 976 + 52.1184 [/tex]
[tex] R_{89} = 1028.1184 \ Ohms [/tex]
