A cross country skier moves from location A to location B to location C to location D. Each leg of the back and forth motion takes 1 minute to complete; the total time is 3 minutes.
What is the distance travelled by the skier in the first minute?
What is the displacement of the skier in the first minute?
What is the distance travelled by the skier in the first two minutes?
Please help it’ll be greatly appreciated!!
Answers
Answer:
1. 160
2. 0
3. 120
Explanation:
Related Questions
A car goes from 15 m/s to 25 m/s in 10 seconds. Calculate the
acceleration of the car during this time.
Answers
Answer:
1 ms-²
Explanation:
v = u + at
25 = 15 + a× 10
a= 1ms-²
An egg is dropped from a building that is 61 m high. What is the velocity when it hits the ground and how long did it take?
Answers
Answer:
the velocity is 10.6m/s
the time taken is 1.5sec
Explanation:
height (h)=61m
from,
[tex] {v}^{2} = 2gh[/tex]
v^2 = 2 (10)(61)
v^2 = 1220
v^2 = 10.6m/s
for time
[tex]v = \frac{1}{2} g {t}^{2} [/tex]
v=10.6
10.6=1×10t^2/2
10.6=5t^2
10.6/5=5t^2/5
t^2=2.12
t=1.5sec
mark me as brainliest pllyyzz
a rectangular block weighs 240N. The area of the block in contact with the floor is 20cm2 calculate the pressure on the floor
Answers
Answer:
The pressure on the floor is 12 Pascal(Pa).
Explanation:
Given,
Force (F) = 240N
Area (A) = 20 cm^2
Pressure (P) = ?
we know that,
P = F/A
= 240/ 20
= 12 Pa
What is good people?
Answers
Answer:
a good person is somebody who is not bad who is good nice good humanity
I am the negatively charged particle that determines the reactivity of any element. Give my name?
plz help me
Answers
Answer:
An electron.
Explanation:
+
- n n -
+
+ = Protons
n = neutrons
- = electrons
A mountain slope and a skier make up a closed system with 21,800 J J of energy. When the skier starts her descent down the mountain, the mechanical energy of the system is 19,500 J. By the time she reaches the bottom, the system's mechanical energy has fallen to 18,230 J. How much of the total energy is transformed into thermal energy?
A. 2,300 J
B. 3,570 J
C. 20,530 J
D. 1,270 J
Answers
Answer: 1,270 J
Explanation: APEX
Answer: 1,270 J
Explanation:
Just did it!!
A child observes a caterpillar walking on a window sill. The caterpillar walks 18 cm to the left, then 6 cm to
the right, then 10 cm to the left.
a. What is the total distance walked by the caterpillar?
Answers
Answer: 34 cm
Explanation:
18+6+10=34 cm
URGENT! PLEASE ANSWER!!
Which vector correctly indicates the direction of centripetal acceleration experienced by the car?
A ( is not correct!!)
B
C
D
Answers
Answer:
C
Explanation:
The answer is obvious from the given figure
Answer:
c
Explanation:
for 100% your welcome(:
A ____________ is a condition or behavior that may threaten an individual's well-being
Answers
Answer:
yeah it may be a risk factor
Explanation:
PLS HELP!!! The quarter back runs 75 meters down a football field in 12 seconds to score a touchdown. How fast did he run? A. 0.2m/s B. 6 m/s C. 26 m/s D. 87 m/s
Answers
Answer:
B.6
Explanation:
speed = distance / time
= 75m / 12s
= 6.25 m/s
The closest answer is b. 6 m/s
heart plz
PLS HELP ANSWER QUICK
An astronaut sets off on a space mission to visit The Moon and Mars. When leaving Earth she weighed herself on a set of scales, and she weighed 70kg. When she was on Mars she weighed herself again and it read 26.3kg. When she got back to Earth she weighed herself again, and it read 70kg. Why was there a difference when she was on Mars?
Answers
Skid Marx set the world record for acceleration as he went from zero to 10 m/s in 3 seconds. How far did he travel in that time?
Answers
Answer:
12000 miles per hour
Explanation:
If skid Marx went from zero to 10 miles in 3 seconds the his speed would have been 12000 miles per hour.
Which component of health-related fitness is developed by performing a wall sit?
A, Body composition
B, Muscular endurance
C, Reaction time
D, Coordination
Answers
Answer:
The answer is Muscular endurance
Explanation:
It is this because your seeing how long your muscles can with stand. I answered by guessing lol.
If a car has an initial velocity of 20 m/s and accelerates at 2.0 m/s2 for 100 m, what is its final velocity?
Answers
Answer:
28.28 ms-1
Explanation:
v² = u² + 2as
v² = 20² + 2×2×100
v²= 800
v = 28.28 ms-1
what is the SI unit of a force
Answers
Answer:
The So unit of force is the newton,symbol N. the base units relevant to force.
Answer
the SI unit of force is newton
12 g … _____________________kilograms
Answers
Answer:
0.012
Explanation:
What is the meaning of life
Answers
Answer:
The meaning of life, or the answer to the question: "What is the meaning of life?", pertains to the significance of living or existence in general. Many other related questions include: "Why are we here?", "What is life all about?", or "What is the purpose of existence?"
Explain how the velocity of an object changes in respect to time.
Answers
Answer:
Is this your ans of this question
Answer:
The rate of change in the velocity of an object per unit time is referred as acceleration and the kind of motion is known as accelerated motion. The acceleration is positive when it is in the direction of velocity and negative when it is opposite to the direction of velocity.
Explanation:
HOPE YOU UNDERSTAND
Which quantity is a vector quantity A. Acceleration B. Mass C. Speed D. Volume
Answers
Answer:
Acceleration
Explanation:
A vector quantity has a magnitude and direction. Mass, Speed and Volume are all scalar quantities because they only have magnitude, and not direction.
21) Y=2+3 solve for y
Answers
Answer:
This must be harder than it appears or I'm missing something, but as far as I know y=5
Explanation:
Y=5
I hope this helps!
What numbers are significant in 405kg
Answers
Answer:
All
Explanation:
I assume you mean how many sigs figs/which are sig figs. If that is what you meant then it is all of them.
What trend does the reactivity of nonmetals show in a periodic table? a) random changes without any trends on the periodic table b) changes according to trends on the periodic table c) increases from left to right across the periodic table d) decreases from left to right across the periodic table
Answers
Answer:
The answer is C. increases from left to right across the periodic table
Explanation:
I took the test
The reactivity increases as we move from left to right in the nonmetals sector of the periodic table. For instance, phosphorus is less reactive than chlorine. The reactivity does, however, diminish as we descend a column of nonmetals.
What reactivity of nonmetals show in a periodic table?Across a period, responsiveness declines as you move from left to right. Higher reactivity results from simpler electron transfer or removal as you move further to the left and down the periodic chart.
The reactivity of non-metals decreases as we move down a group. This is due to: An increase in the quantity of valence shells. The nucleus can no longer hold the electrons with the same force.
Therefore, In a period, the reactivity of non-metals rises from left to right; however, as we move down a group, the reactivity falls down because the tendency to take electrons declines.
Learn more about periodic table's here:
https://brainly.com/question/11155928
#SPJ2
A water-balloon launcher with a mass of 1.75 kg is suspended on a wire. It fires a 1.25 kg balloon to the east at a velocity of 12.0 m/s. What is the resulting velocity of the launcher if the net force on the launcher is equal to the reaction force? O A. 6.1 m/s east B. 16.8 m/s west C. 7.6 m/s west D. 8.6 m/s west
Answers
Answer:
8.6 to west
Explanation:
The initial momentum of the system is given by the sum of the momentum of the launcher and the momentum of the balloon. The correct answer is option C. 7.6 m/s west.
To solve this problem, we can apply the principle of conservation of momentum. According to this principle, the total momentum before an event is equal to the total momentum after the event, assuming no external forces act on the system.
The momentum of an object is calculated by multiplying its mass by its velocity.
Initial momentum = (mass of launcher × velocity of launcher) + (mass of balloon × velocity of balloon)
Let's substitute the given values into the equation:
Initial momentum:
[tex](1.75 kg * 0 m/s) + (1.25 kg * 12.0 m/s)[/tex]
Initial momentum = 15 kg·m/s
Since the net force on the launcher is equal to the reaction force, we can assume no external forces act on the system. Therefore, the total momentum before firing the balloon is equal to the total momentum after firing the balloon.
Final momentum = (mass of launcher + mass of balloon) × final velocity of the launcher
Let's solve for the final velocity of the launcher:
Final momentum:
[tex](1.75 kg + 1.25 kg)[/tex] × Final velocity of the launcher
15 kg·m/s = 3 kg × final velocity of the launcher
Dividing both sides of the equation by 3 kg gives us:
The final velocity of the launcher = 15 kg·m/s / 3 kg
The final velocity of the launcher = 5 m/s
Since the initial velocity of the balloon is to the east, the final velocity of the launcher will be to the west. Therefore, the correct answer is option C. 7.6 m/s west.
For more details regarding initial momentum, visit:
https://brainly.com/question/12450698
#SPJ2
7. How long would it take for you to reach the cafeteria, which is 100 m away, if
you were running at a speed of 20 m/s?
Answers
Time = distance / speed
Time = 100m / 20 m/s
Time = 5 seconds
But trust me ... You're not running at 20m/s.
was an American writer, poet, editor, and literary critic. Poe is best known for his poetry and short stories
Answers
Answer:
poet
Explanation:
Name three types of energy that exist in a large piece of charcoal on a grill in the sunlight. Explain why the charcoal has each type of energy.
Answers
Answer:
* thermal energy
potential energy,
potential energy
Explanation:
The ship has various types of energy,
* thermal energy. This energy is associated with the temperature of the coal, the hotter the greater its internal energy,
* potential energy this energy is stored in the constituent atoms within carbon
* potential energy. It is due to the configuration of the system, in this case the sun heats the coal
the unit of pressure is derived unit, why?
Answers
Answer:
I hope you understand it.
I had presented answer very clearly would you mark brainliest
hey can yall help me out in dis
Answers
Answer:
Scientific method
Explanation:
The __ variable is sometimes called the “manipulative ” because
Answers
Answer:
Independent.
Explanation: The Independent variable is sometimes called the "manipulative" because it refers to a quantity that is changed by the experimenter.
what if your outgoing,fun,kind,and a bit loud and ppl still don't what to be your friend? What am I doing wrong?
Answers
Answer:
Maybe you're hanging out around the wrong crowd. The people you are probably choosing to be around are more quiet then you.
Explanation:
