We have that for the Question "" it can be said that how long will it take the car to come to a full stop and the car lengths before a stop is
t=6.67L=27cars
From the question we are told
Your car can brake with a deceleration of 6 m/s2. The car is initially going at 40 m/s.
a) How long will it take the car to come to a full stop?
b) If the car is 5 meters long, about how many car lengths should be kept between you and the car in front of you (assume the car in front of you comes to a stop immediately).
Generally the equation for the Velocity is mathematically given as
[tex]v=u+at\\\\Therefore\\\\40=0+6t\\\\t=6.667s\\\\[/tex]
b)
s=ut+1/2at^2
Therefore
[tex]S=0+1/2(6)(6.7)^2\\\\S=134.67m[/tex]
Therefore
The car lengths before a stop is
L=134.67m/5
L=27cars
For more information on this visit
https://brainly.com/question/23379286
What does it mean when an
electromagnetic wave has low energy?
A. it has a long wavelength
B. It has a short wavelength
C.it has a short amplitude
D. It has a high frequency
Answer:
A
Explanation:
Low energy photons (such as radio photons) behave more like waves, while higher energy photons (such as X-rays) behave more like particles.
Please give brainliestAnswer:
B. It has a short amplitude.
:)
Urgent need help 100 points
Suppose that scientists observe violent gas eruptions on a planet with an acceleration due to gravity of 3.6 m/s2.
The jets throw sand and dust about 75 m
above the surface.
What is the speed i
of the material just as it leaves the surface?
Scientists estimate that the jets originate as high‑pressure gas speeds through vents just below ground at about 150 km/h.
How much energy per kilogram of material does the jet lose to nonconservative forces as the high‑speed matter forces its way to the surface and into the air?
Answer: The velocity with which the sand throw is 24.2 m/s.
Explanation:
Explanation:
acceleration due to gravity, a = 3.9 m/s2
height, h = 75 m
final velocity, v = 0
Let the initial velocity at the time of throw is u.
Use third equation of motion
The velocity with which the sand throw is 24.2 m/s.
saan natin maaaring ipinta ang myural
Answer:
wall,ceiling or other permanent surfaces
NEED HELP!!! IF YOU ANSWER ALL QUESTIONS I WILL GIVE YOU BRAINEST!!!!! 15 POINTS!!!!
1. Tracking your exercise can help you stick with an exercise routine.
A.
True
B.
False
2. Lola is trying to be healthier, so she has been doing a lot of weight lifting. She can tell that she is really starting to build more muscle. If she is working her muscles, does she need to be concerned about flexibility?
A.
No, any kind of muscle work gets the job done.
B.
Yes, it is best to do as many different kinds of exercise as possible.
C.
Yes, flexibility is a different and important way of working muscle.
D.
No, most people are naturally flexible without much additional work.
3. Many sports that do not explicitly depend on strength work weightlifting into their practices. Why is this a good idea?
A.
Weightlifting is a traditional form of exercise.
B.
Building muscle strength helps with all aspects of fitness.
C.
There are very few ways to build muscles other than weightlifting.
D.
Sports can change their rules and require more strength from athletes.
4. Marina comes from a family with a lot of heart disease. She knows that she will have to go out of her way to make sure that her heart stays strong and healthy. What would be the BEST exercise to achieve this goal?
A.
yoga
B.
bowling
C.
swimming
D.
weightlifting
PLEASE NO LINKS!!!
Answer:
1.A
2.C
3.B
4. i.dk about that one
Explanation:
1. It is true that Tracking your exercise can help you stick with an exercise routine.
2. Yes, it is best to do as many different kinds of exercise as possible.
3. Building muscle strength helps with all aspects of fitness
4. Yoga would be the best exercise to achieve this goal.
What is exercise?Exercise is any activity that utilizes the physical movements of the body that improves a people's health, endurance, and wellbeing while lowering their chance of contracting illnesses. It enables the person to keep their body weight in a healthy weight range.
The benefits of fitness fluctuate depending on the sort of dying a person experiences. Even if a muscle is stretched, excessive sitting can cause a number of illnesses, many of which are fatal. The individual should engage in mobility activities as well as exercising to improve their stamina.
Thus, exercise is very necessary for health.
To learn more about exercise here, refer to the link;
https://brainly.com/question/22616385
#SPJ2
please help me with this
Answer:
the answer is UV Radiation
How much work does a 60 Watt motor perform in 5 minutes?
Answer:
18000J or 18kJ
Explanation:
Use the formula:
work done or energy = power × time
power = 60Wtime = 5 mins = 300s (5 × 60)Sub in the values:
work done or energy = 60 × 300 = 18000Answer = 18000J or 18kJHope this helps!
a person lifts a package weighing 75 N if she lifts it 1.2m off the floor what work has she done ?
Answer:
W = 90 J
Explanation:
Data:
Force (F) = 75 NDistance (d) = 1.2 mWork (W) = ?Use the formula:
W = F * dReplace and solve:
W = 75 N * 1.2 mW = 90 JThe work done was 90 Joules.
Greetings.
a dog is running at 5.5 m/s then comes to a complete stop in 1.5 seconds. What is the dogs acceleration?
The dog's acceleration running at 5.5 m/s then comes to a complete stop in 1.5 seconds is 8.25m/s²
HOW TO CALCULATE ACCELERATION:
The acceleration of a moving object can be calculated by multiplying the velocity of the object by the time taken. That is;Acceleration (m/s²) = speed (m/s) × time (s)According to this question, a dog is running at 5.5 m/s then comes to a complete stop in 1.5 seconds. The acceleration can be calculated as follows:Acceleration = 5.5 × 1.5Acceleration = 8.25m/s²Therefore, the dog's acceleration running at 5.5 m/s then comes to a complete stop in 1.5 seconds is 8.25m/s².Learn more at: https://brainly.com/question/19573976?referrer=searchResults
Que sucede con el trabajo obtenido conforme aumenta el ángulo?
The acceleration of free fall on Mars is 3.7 m/s?.
What is the weight of a 100g mass on Mars?
A 0.037N
B
0.37 N
C 37 N
D
370N
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Given :
Acceleration (a) = 3.7 m/s²mass (m) = 100g = 0.1 kgweight is equal to :
[tex]m \times a[/tex][tex]3.7 \times .01[/tex][tex]0.37 \: \: \: N[/tex]Weight of the object is 0.37 Newtons ~
Correct choice is B
NEED HELP!!!! 15 POINTS!!!!
Imagine that you are going to make an exercise routine. If your goal was to develop your health rather than one specific improvement, what should be in your plan?
A.
a focus on the benefits of stretching
B.
a variety of aerobic and anaerobic exercises
C.
a single exercise with increasing intensity
D.
an exercise that you have never tried before
PLEASE NO LINKS
Answer:
c
Explanation:
If the goal of the exercise routine is to develop overall health rather than focusing on one specific improvement, a well-rounded approach that addresses various aspects of fitness would be ideal.
This would involve a combination of different types of exercises to promote cardiovascular health, muscular strength, flexibility, and overall well-being. From the given options, the best choices would be:
B. A variety of aerobic and anaerobic exercises: This option is important because it incorporates both cardiovascular exercises (aerobic) and strength-building exercises (anaerobic), ensuring a balanced approach to fitness.
A. A focus on the benefits of stretching: Stretching is important for maintaining flexibility and preventing injuries. Incorporating stretching exercises, such as static and dynamic stretches, can contribute to overall health and mobility.
D. An exercise that you have never tried before: While not as essential as the first two options, trying new exercises can add variety and excitement to your routine. It can also engage different muscle groups and challenge your body in new ways.
C. A single exercise with increasing intensity: While progressively increasing the intensity of a single exercise can be part of a fitness plan, focusing solely on a single exercise may not provide the diverse benefits that a combination of exercises can offer. Variety is key to a well-rounded fitness routine.
To know more about fitness:
https://brainly.com/question/16289258
#SPJ3
Martine also has an eraser.it has a mass of 3g,and a volume if 1cm3.what is its density
Answer:
3g/cm³
Explanation:
Use the formula:
density = mass ÷ volume
Substitute (plug in) the values:
density = 3 ÷ 1 = 3g/cm³
Math the words in the box with the sentences below.
In order of appearance on the table;
Magnetic force
Normal force
Gravity
String force
Friction
Contact force
Tension
Non Contact force
Static force
Applied force
please mark BRAINLIEST if I'm right.
X=(150^2•sin(2•42))/9.8
Answer:
2283.3410863
Explanation:
Answer:
2283.341086
Explanation: Just plug the equation into the calculator as is
A plant uses carbon dioxide and water to form food and oxygen. Why is this a chemical change?
Answer:
because when the plant inhales c02 it exhales oxgen
Explanation:
Answer:
The properties of carbon dioxide and oxygen are different.
Explanation:
A chemical change is defined as something that changes the substance of something (such as the creation of water from hydrogen and water), and can be figured out if chemical or physical based on different changes and properties. Your answer will be The properties of carbon dioxide and oxygen are different because these are two different elements (compounds in case of CO2) that combine to form a different substance, thus changing the identity of the substance.
Photosynthesis is a chemical reaction that occurs in plants by using radiant energy from sunlight. In this chemical reaction, carbon dioxide from the atmosphere and water from the soil are combined to produce sugar (glucose) that contains stored chemical energy.
What is the voltage between two short-circuited points? PLZ HELP ASAP
Answer
It states that V/I = R where V is potential difference R is resistance and I is the current flowing across the terminals.Now when short circuit the resistance ...
Explanation:
Molly does not have many activities after school, so she has plenty of time to exercise. She has never been very athletic and plans to start by exercising two hours a day five days a week. Is this a good plan?
OPTIONS:
A.
Yes, she should dive right in.
B.
No, no one can exercise that much.
C.
Yes, if she has the time there is no excuse.
D.
No, smaller goals would be better.
PLEASE NO LINKS
A bus is running with a velocity of 72 km.hr on seeing a a boy on the road tom a head the driver jammed on the brakes and the bug Stopped witts uniform retradtion 5 m/s2 calculate the distance travelled by bus and discuss whether accident took place or not.
Answer:
Answer is 40m
Explanation:
The explanation is attached in the image below.
How long would it take you to travel 163 meters at a speed of 33 meters per second?
Speed=
[tex]33m {s}^{ -1} [/tex]
Distance=
[tex]163m[/tex]
speed= distance/time
So,
Time= distance/speed
Time= 163/33
=[tex]\huge\underline\mathtt\colorbox{cyan}{4.9393s}[/tex]
explain how siphon works with atmospheric pressure?
Answer:
A siphon is a tube that allows liquid to travel upward, above the surface of the origin reservoir, then downwards to a lower level without using a pump. When a certain amount of water moves over the bend in the siphon, gravity pulls it down on the longer leg lowers the atmospheric pressure in the bend of the siphon.
Mark me as brainlest, please?
Explanation:
what is his angular displacement during a 1.0 s time interval?
Answer:
The angular velocity is: (2π radians) ⁄ (4.3 sec) = 1.461 rad/sec
The angular displacement is: (1.461 rad/sec)(1 sec) = 1.461 radians
Explanation:
knjdjdedjddjdddejjjjjjjj
What acceleration would you expect a 100 kg individual to experience from a 1000N force?
Answer: 10 m/2^2
F=ma
Explanation:
Force = 1000N
1 N is 1 (kg*m/s^2)
Mass = 100kg
F=ma
a = F/m
a = (1000kg*m/s^20/(100kg)
a = 10 m/s^2
the secondary atmosphere of the earth was composed mainly of
If you apply a force of 10 N to a table and push it 5 m in 10 s, how much power did you deliver? Multiple choice question. A) 50 W B) 25 W C) 500 W D) 5 W
Answer:
D) 5 W
Explanation:
Force=10N
Distance =5m
Time=10s
Power =?
But Power= Work done/Time taken
P= W/s
W= Fxd=10x5=50
P=50/10
P=5W
What force does the gravitational attraction of earth exert on a 12.8kg object, such as a toolbox loaded with tools
Answer:
16
Explanation:
A dog walks 100m at a bearing of 175 degrees. a) How far did it walk East?
1 kilometer
Explanation:
hope it helps
Answer:
275m
Explanation:
hope it helps
pls give me brainliest
At a race car driving event, a staff member notices that the skid marks left by the race car are
10.99 m long as it comes to a stop. The very experienced staff member knows that the
deceleration of a car when skidding is -42.61 m/s2. What can the staff member estimate for
the original speed of the race car if it came to a stop during the skid?
A car that experiences a deceleration of -41.62 m/s² and comes to a stop after 10.99 m has an initial velocity of 30.60 m/s.
A car experiences a deceleration (a) of -41.62 m/s² and comes to a stop (final velocity = v = 0 m/s) after 10.99 m (s).
We can calculate the initial velocity of the car (u) using the following kinematic equation.
[tex]v^{2} = u^{2} + 2as\\\\u = \sqrt[]{v^{2}-2as} = \sqrt[]{(0m/s)^{2}-2(-42.61m/s^{2} )(10.99m)} = 30.60m/s[/tex]
A car that experiences a deceleration of -41.62 m/s² and comes to a stop after 10.99 m has an initial velocity of 30.60 m/s.
Learn more: https://brainly.com/question/14851168
why is the saturated lapse rate less than the dry adiabatic lapse rate?
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
Lifting a saturated package causes it to expand and cool, resulting in vapour condensation. Condensation will release latent heat, partially counteracting the cooling. As a result, a saturated parcel's adiabatic lapse rate is smaller than an unsaturated parcel's.
Because moist air ascending condenses off its water vapour, the moist adiabatic lapse rate is lower than the dry adiabatic lapse rate (once saturation is attained). The air is considered to be saturated when the dew point temperature and air temperature are identical.
an object applies force of 500n on the area if 10m². find the force exerted
Exerted force is called Pressure.
From,
Pressure = Force/Area
P = 500N/10m²
P = 50N/m²
The force exerted is 50N/m²