A skateboarder is traveling at a velocity of 8 m/s. She slows down and comes to a stop in 4 seconds. Calculate the skater’s acceleration.

Answers

Answer 1

Answer:

Go to this link it has many examples - https://staff.retsd.mb.ca/public/or4xe53elrzxg5ldmjuwe3i/Lists/SharedDocuments/Physics/14.2.PDF

Explanation:

Link ^


Related Questions

A raindrop was 16meters above the ground, falling straight down at a constant velocity. It took the raindrop 2seconds to fall half the distance to the ground. What was the raindrop's velocity?



what is the answer

Answers

Answer is 4 m/s

Step-by-step explanation:-

Let :-

Constant velocity = v

Time (t) = 2 seconds

Height (h) = 16 metres

As the raindrop has constant velocity, we can write that :

[tex] \frac{h}{2} = vt[/tex]

Substituting the values, we get,

[tex] \frac{16}{2} = v \times 2[/tex]

[tex]8 = v \times 2[/tex]

[tex] \frac{8}{2} = v[/tex]

[tex]v = 4 \: m/s[/tex]

Therefore, the velocity of the raindrop is 4 m/s.

✍️ By Benjemin ☺️

Calculate the power of a car that uses 12KJ of chemical energy in 6 seconds

Answers

Explanation:

Power=work done/time

=> 12kJ/6s = 12000J/6s = 2000W = 2kW.

hope this helps you

PLEASE HELP. SO HARD. SCIENCE ASSIGNMENT. ASAP

Answers

World shall know pain im not helping figure it out urself + RATIO

9. What is NOT true about the Body Composition Assessment?
It can be measured using skin calipers, a water test, and body composition scales.
OBMI is an indirect body composition measuring method using your weight and height.
ОО
Your weight alone can determine the percentages of your body's composition.
OBMI can be a reliable indicator of body composition.

Answers

Answer: Your weight alone can determine the percentages of your body's composition

Explanation:

C. Your weight alone can determine the percentages of your body's composition.

What is Body Composition Assessment?

Body composition analysis is the assessment of the proportion of fat to fat-free mass in your body.

Performing Body Composition Assessment will tell you your own body's unique makeup and help you identify areas to work on to improve your overall health and wellness.

Thus, the statement that is NOT true about the Body Composition Assessment is your weight alone can determine the percentages of your body's composition.

Learn more about body composition here: https://brainly.com/question/7285113

#SPJ6

how to find the density of air?

Answers

You have to divide the pressure exerted by the air into two partial pressures: of the dry air and of the water vapor. Combining these two values gives you the parameter.

HELP HOMEWORK IS DUE IN % MINUTES

6. How much time will it take for a bug to travel 5 meters across the floor if it is traveling at 1 m/s?

7. You need to get to class, 200 meters away, and you can only walk in the hallways at about 1.5 m/s. (if you run any faster, you’ll be caught for running). How much time will it take to get to your class?

8. In a competition, an athlete threw a flying disk 139 meters through the air. While in flight, the disk traveled at an average speed of 13.0 m/s. How long did the disk remain in the air?

Answers

Answer:

Answer to number 6 = 5 seconds.

Explanation:

Distance = Speed x Time.

So  

t

=

d

s

t

=

5

1

=

5

So the bug will take 5s.

Answer to number 7 =133.33

Explanation:

here s=200m

v=15m/s

now,s=d/t

then,t=d/s

200÷1.5=133.33s

Answer to number 8 = 10.69 s

t = 139m/13 m/s

This is physics?? If so I must be a genius.

4. You bought a block of cheddar from the grocery store. If you cut a small piece and a large piece from the same block of cheese, will they have the same density? Why?

Answers

yes, as density is a value which is the same for any substance and does not change due to different volumes or masses of the same substance

Pipes that transport water
over long distances
What is pipes that transport water over long distance

Answers

Answer:

Large-diameter pipelines can be used to convey water over large distances, while smaller-diameter pipelines can be used to provide bulk or individual supplies at the point of use. Aqueducts are canals used to bring water from a river or reservoir to a water distribution center.

Explanation:

A car drives 215 km west and then 85 km south. Find the distance and displacement of the car.​

Answers

Answer:

Distance= 300 km

Displacement= 130

Explanation:

When you find distance you have to add

When you find displacemnet you subtract

If a car drives 215 kilometers west and then 85 kilometers south, then the distance and displacement of the car would be 300 kilometers and kilometers respectively.

What is displacement?

Displacement is a vector quantity. This indicates that it has both a direction and a magnitude and that it is visually represented as an arrow that points from the starting position to the ending position.

As given in the problem, if a car drives 215 kilometers west and then 85 kilometers south, then we have to find the distance and displacement of the car,

The distance traveled by car = 215 kilometers + 85 kilometers

                                                = 300 kilometers

The displacement covered by the car = √(215² + 85²)

                                                               = 231.2 Kilometers

Thus, the distance traveled by car would be 300 Kilometers and the displacement would be 231.2 Kilometers in the southwest direction.

To learn more about displacement here, refer to the link;

https://brainly.com/question/10919017

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An arrow fired horizontally at 44m/s travels 23m horizontally before it hits the ground From what height was it fired?

Answers

High=1.54m that is the answer your welcome

Question:
the distance of the car can move by velocity 15 m/s for time 5s is :
Physics

Answers

Answer:

c) 2.05

Explanation:

If it takes 5 seconds for the projectile to reach its highest point, what is the total

hang time?

10 sec

1 sec

2 sec

d

8 sec

Answers

10 seconds! There you go

*Average Speed v = d/t


Distance d = v t


Time t = d/v


* remember v = average speed


Solve the following problems for average speed, distance or time. Round to tenths place:


Find the distance traveled by a car that travels with an average speed of 110 km/h for 3.5 h.

How long does it take a baseball moving with an average speed of 35 m/s to travel 18 m?

What is the average speed of a car that travels 870 km in 14.5 h?

Answers

Find the distance traveled by a car that travels with an average speed of 110 km/h for 3.5 h

To solve for distance:

d = v t

d = 110 × 3.5

d = 385 km

How long does it take a baseball moving with an average speed of 35 m/s to travel 18 m?

To solve for time:

t = d/v

t = 18 / 35

t = 0.514286

t = 0.5 s

What is the average speed of a car that travels 870 km in 14.5 h?

To solve for average speed:

v = d/t

v = 870 / 14.5

v = 60 km/h

If you place a force of 10 N on a box and accelerate at 1.2 m/s squared what is the mass of the box?

Answers

Answer:

8.33 kg

Explanation:

The mass of the box can be found by using the formula

[tex]m = \frac{f}{a} \\ [/tex]

f is the force

a is the acceleration

From the question we have

[tex]m = \frac{10}{1.2} = 8.333... \\ [/tex]

We have the final answer as

8.33 kg

Hope this helps you

How is air resistance similar to gravity? give me two reasons

Answers

Explanation:

I think this would help you. Read this and make your own answer ok.

Which has the lowest coefficient of friction?


cast iron on cast iron

glass on glass

nonstick coating on steel

steel on steel with castor oil

Answers

Answer: nonstick coating on steel

Explanation:

Question 1 (Mandatory) (1 point)
An 8 kg basketball is dropped from a height of 10 m. Calculate the Gravitational
Potential Energy of the ball.
0784 Joules
7,683 Joules
80 Joules
O 0.8 Joules

Answers

Answer:

[tex]P.E=mgh \\ = 8kg \times 9.81m {s}^{ - 2} \times 10m = 784J[/tex]

Are you an antisocial person. Me honestly am

Answers

Explanation:

By the way.. What's the meaning of ANTISOCIAL??..(ㆁωㆁ)

If you tell me the meaning of it, I'll tell you my answer too(ㆁωㆁ)

yes definitely i do feel like i’m a antisocial person

A girl attempts to swim directly across a stream 15meters wide. When she reaches the other side, she is15 meters downstream. The magnitude of herdisplacement is closest to

Answers

x
=

15
2
+
15
2

x
=
15

2
QED.

A car accelerates from 4 meters/second to 16 meters/second in 4 seconds. The car’s acceleration is meters/second2.

Answers

Answer:

3m/s^2

Explanation:

VF-VI/time

16-4/4

12/4

3

What affects the vertical (y-component) of a projectile?
A. Gravity
B. Air resistance
C. Velocity
D. Speed

Answers

a. the force of gravity

Answer:

Gravity

EXPLANATION:

In the vertical or y direction, however, the projectile experiences the effect of gravity. As a result, the y component of the velocity  is not constant, but changes. The y component of the acceleration ay is the downward acceleration due to gravity.

PLS MARK BRAINLIEST

URGENT: true or false: liquids can be poured from one container to another because there are no attraction forces between atoms or molecules

Answers

Answer:

False

Explanation:

It's common sense  

Answer:

True

Explanation:

Water doesnot have any definite shape.There is less attraction between particles .Hence water can move one container to another

Hai điện tích q1 = 8*10^-8C, q2 = -8*10^-8C đặt tại A,B trong không khí, AB=4cm. Xác định cường độ điện trường tại C với:
a) CA = CB = 2cm
b) CA= 8cm, CB = 4cm
c) CA = CB = 4cm
d) CA = 3cm, CB = 5cm

Answers

Answer:

its b cuz ca when u add the b its a Explanation:

in the international space station which orbits earth, astronauts experience apparent weightlessness because

Answers

Answer:

because there isn't any gravity there

PLS HELP HELP WILL MARK FIRST RIGHT ANSWER BRAINLIEST!!!!

Answers

Answers:

2. Displacement is:

A. All answers correctly describe displacement.

3. What is the initial position of this car?

B. 0

4. What is the final position of this car?

C. -2

5. What is the displacement of the car during PART A of the trip?

A. 3

6. What is the displacement of the car during PART B of the trip?

C. -5

7. What is the total distance the car travels during the WHOLE TRIP?

B. 8

8. What is the total displacement the car travels during the WHOLE TRIP?

D. -2

9. What is the change in position (displacement) of the car?

A. 17 meters

10. Define and explain each of the three variables in this displacement equation: Δx = [tex]x_{f} - x_{i}[/tex]

Δx: This is the total value of displacement. xf: This represents the final position.xi: This represents the initial position.HOPE THIS HELPS!

CR(OH)3+HCIO4>CR(CIO4)+H2O

Answers

Answer:

Cr(OH)3 + 3 HCLO4 → Cr(CLO4)3 + 3H2O

Stoichiometry balancing +

Why is the temperature of a normal healthy old man is less than that of a normal healthy young man?

Answers

Answer:

Normal body temperature does not change much with aging. But as you get older, it becomes harder for your body to control its temperature. A decrease in the amount of fat below the skin makes it harder to stay warm.

What is the force of a object that has a mass of 7 kg and an acceleration of 6 m/s/s

Answers

Answer:

42 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question

mass = 7 kg

acceleration = 6 m/s²

We have

force = 7 × 6 = 42

We have the final answer as

42 N

Hope this helps you

How far could you skip in one hour? 20m/ 3m/s

Answers

Answer:

20m/s = 72,000m, 3m/s = 10800m

Explanation:

5 star please

express one light year into SI unit​

Answers

Explanation:

The light-year, alternatively spelled lightyear, is a unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (9.46×1012 km) or 5.88 trillion miles (5.88×1012 mi).

hope it helps.stay safe healthy and happy.
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