Answer:
With a vector, however, the sign simply tells you about the direction of the vector. If you're travelling with a velocity of 20 km/hr east, it means you're travelling east, and your speed is 20 km/hr.
Please help!!
If you move 3 meters East and move 4 meters north what is the distance and what is the displacement?
Answer:
Explanation:
The distance will be the total distannce covered during the journey.
If you move 3 meters East and move 4 meters north, then the distance will be calculated as;
Distance = distnace through East+distance through north
Distance = 3m + 4m
Distance = 7m
Displacement is the distance covered in a specified direction. It is the shortest distance covered by me. This can be gotten using the Pythagoras theorem.
d² = 3²+4²
d² = 9+16
d² = 25
d = √25
d = 5m
Hence the displacement of the object is 5metres
You traveled 150.meters south at a speed of 1.50m/s, and then traveled 600. Meters north at a rate of 2.00 m/s.
1. Wha is the total time of the trip ?
2. What was your average speed ?
3. What was your average velocity ?
Answer:
1.) 400s
2.) 1.875 m/s
3.) 1.125 m/s
Explanation:
Given that you traveled 150.meters south at a speed of 1.50m/s,
Time = distance/ speed
Substitute speed and distance into the formula
Time = 150/1.5
Time = 100 s
and then traveled 600. Meters north at a rate of 2.00 m/s.
Time = 600 / 2
Time = 300 s
1.) Total time = 100 + 300
Total time = 400 s
2.) The average speed will be total distance travelled over total time.
Total distance travelled = 150 + 600
Total distance travelled = 750 m
Substitute all the parameters into the formula
Average speed = 750/400
Average speed = 1.875 m/s
3.) Average velocity will be displacement over total time
Displacement = 600 - 150
Displacement = 450 m
Average velocity = 450/400
Average velocity = 1.125 m/s
An observer sitting at a bus stop sees the bus drive by at 30 m/s to the east. He also sees a
passenger on the bus walking to the back at 2 m/s. What is the passenger's velocity relative
to the bus?
Answer:
32 m/s
Explanation:
The speed of a bus is 30 m/s due East wrt the passenger
He also sees a passenger on the bus walking to the back at 2 m/s.
We need to find the passenger's velocity relative to the bus. As the observer sees that the bus and the passenger are moving in opposite direction. Let v is the relative velocity. So,
v = 30 m/s + 2 m/s
v = 32 m/s
Hence, the passenger's velocity relative to the bus is 32 m/s.
WHAT IS THE MASS OF AN OBJECT THAT WEIGHS 100 N?
Answer:
10.2 kg
Explanation:
Assuming the object is on Earth:
w = mg
m = w / g = 100 / 9.81 = 10.2kg
A boat travels at a constant speed of 12.0m/s for 97s. How far does it go?
Answer:
your mama
Explanation:
because i said so
Answer:
1164m
Explanation:
speed=distance/time, therefore Distance=speed*time.
Now that we have our equation, we plug in the variables, as we do not need to convert our units.
12*97= 1164 m
Which pair of objects has the largest gravitational force?
Choose the correct answer.
marble and car
marble and baseball
car and bowling ball
There is no gravitational force between any of these pairs of objects.
IF all the pairs are separated by the same distance, then it's the car and the bowling ball.
If I can move them as far apart as I want, then I can make ANY of them have the greatest gravitational attraction between them.
Who know what parkour is list 1 thing that u know about parkour
Answer:
Excuse me? I'm truley sorry but I cannot understand you
Explanation:
You raise a penny for ever meter you walk, You walk 15 kilometers. How much money did you raise??
Answer: 15,000 pennies
Explanation:
Answer:
15000 pennies = 150 dollars
Explanation:
1 kilometer = 1000 meters
15 kilometers = 15000
15000 pennies / 100 pennies =150 pennies
15000 pennies converted to dollars is 150
What do u do if ur baby sitting and the kid falls down the stairs and breaks his nose. Should I tell the parents or no? What do I do
Answer:
Call the parent's for the safety of the baby
Explanation:
CALL 911.
THEN CALL THE PARENTS.
RIGHT NOW ! ! !
a liter contains 1,000 smaller units called  milliliters , true or false
True :) ..............
if there is a runner at first and the pitcher throws the ball to the catcher and the runner tries to steal second and the catcher throws to second and the runner breaks and tries to go back to first but the pitcher relizes what do you call that situation
i don’t know the answer too 4649ml=________L
Answer:
the answer is 4.649 liters
Answer: The answer is 4.56L
is carbon dioxide a element?
Answer:
Carbon Dioxide is a compound and not an element.
Answer:
Carbon dioxide is a compound.
Explanation:
Elements are when you only have one type of atom that makes it up. Carbon dioxide is made up of two different types of atoms.
A bus increases its velocity from 20m/s to 30m/s in 4s. Find its
acceleration.
(Ans: 2.5m/s?
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{2.5 \: m \: / \: {s} \: ^{2} }}}}}[/tex]
Explanation:
[tex] \star{ \text{ Given}}[/tex] :
Initial velocity ( u ) = 20 m / s
Final velocity ( v ) = 30 m / s
Time taken ( t ) = 4 second
[tex] \star{ \text{ \: To \: Find}}[/tex] :
Acceleration of a bus ( A ) = ?
We know,
[tex] \boxed{ \sf{acceleration \: ( \: a \: ) \: = \frac{final \: velocity(v) - \: initial \: velocity \: ( \: u \: )}{time \: taken \: ( \: t \: )}}} [/tex]
[tex] \longmapsto \: { \sf{ \: acceleration = \frac{30 - 20}{4} }}[/tex]
[tex] \longmapsto{ \sf{ \: acceleration = \frac{10}{4} }}[/tex]
[tex] \longmapsto{ \sf{acceleration = 2.5 \: m \: / \: {s} \: ^{2} }}[/tex]
The acceleration of bus = 2.5 m / s ²
Hope I helped!
Best regards!
~ TheAnimeGirl
Which of the three types of equations follows the law of conservation of mass?
Answer:
BE MORE DESCRIPTIVE
Explanation:
A drag racer starts her car from rest and accelerates at 10.9 m/s^2 for the entire distance of 226 m. How long did it take the car to travel this
distance? Answer in units of s.
u=0
a=10.9m/s^2
s=226m
v^2-u^2=2as
v^2=2 (10.9)(226)
v^2=49268
v=70.2m/s^2
v=u+at
70.2=0+10.9 (t)
70.2/10.9=t
t=6.44s
What is the twisted ladder shape of the DNA called? 3D model nucleotides double helix single strand
Answer: double helix
Explanation: Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups.
Hope this helps
Plz mark brainleist
The twisted ladder shape of the DNA called double helix.
What is DNA?A polymer made of two polynucleotide chains that coil around one another to form a double helix is called deoxyribonucleic acid. All known organisms and many viruses have genetic information in the polymer that is necessary for their development, operation, growth, and reproduction.
Nucleic acids include DNA and ribonucleic acid (RNA). Nucleic acids are one of the four main categories of macromolecules that are necessary for all known forms of life, along with proteins, lipids, and complex carbohydrates (polysaccharides).
Because the two DNA strands are made up of simpler monomeric units termed nucleotides, they are referred to as polynucleotides.
Each nucleotide is made up of a phosphate group, a deoxyribose sugar, and one of the four nitrogen-containing nucleobases (cytosine [C], guanine [G], adenine [A], or thymine [T]).
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A friend waves & yells at you. If the sound took 3.20 seconds to reach you and the speed of sound is 340 m/s,
how far away was your friend?
Answer:
1088 m
Explanation:
3.00 seconds times by 340 =1020+68=1088
Convert 285,000 milliliters to decaliters.
Answer:
The answer is 28.5 decaliters
3. A man heads up a trail going north to see a lake. The trail is 5 miles long and it takes him
2 hours to get there. What was his velocity?
Answer:
v = 2.5 mi/h
Explanation:
The velocity of an object is defined as the time rate of change of its position. In other words the velocity of an object is just a ration of displacement covered by the object to the time taken by the object, to cover that distance. So, in this case we will use the same formula or equation to calculate the velocity of the man. The formula is as follows:
v = s/t
where,
v = velocity of the man = ?
s = distance of the trail = 5 miles
t = time required to complete the trail = 2 h
Therefore,
v = 5 miles/ 2 h
v = 2.5 mi/h
A rocket is launched from the launch pad at a speed of 700 km/hr.
How far will the rocket have traveled after 1.5 hour?
Answer:
Explanation:
Vm = Δs/Δt
700km/h = Δs/1.5h
700 = Δs/1.5
[tex]\frac{700}{1} = \frac{S}{1.5}[/tex]
S = 700 x 1.5
S = 1050 Km
*(S = Δs)
Answer: The rocket will have traveled 1050 Km
Hope this help ☺
After 1.5 hour the rocket will have traveled 1023.54 km.
What is speed?In everyday use and in kinematics, the speed (commonly referred to as v) of an object is the magnitude of the change of its position over time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity. SI unit of speed is meter/second.
Initial speed of the rocket = 700 km/hr
= 700 (1000/3600) meter/second
= 194.44 meter/second
Acceleration due to gravity is = 9.8 m/s²
Time interval is = 1.5 hour = 1.5 × 60 × 60 second
hence, after 1.5 hour the rocket will have traveled = (194.44) (1.5 × 60 × 60) - 1/2×9.8×(1.5×60×60)² meter
= 1050000 meter - 26460 meter
= 1023540 meter
= 1023.54 km.
So, the rocket will have traveled 1023.54 km after 1.5 hour .
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Metric system please help me I don’t know how to do this
Answer:
11. 6700L
12. 0.0000238
13. 1805
14. 3800
15. 1400
16. 0.01428
17. 0.0003585
18. 0.0415
19. 4060.0
20.0.105
Which model is most likely used to predict a future event? a model of a cell a model of Mars a model of weather systems a model of prosthetic limbs
Answer:
C. a model of weather systems
Explanation:
just took the test on edge
hope this helps
Answer:
it is c
Explanation:
a model of weather systems
Which model is most likely used to predict a future event?
You are going for a drive, but a detour takes you out of the way of your destination. You
drive north for 10 miles, turn right and drive east for 5 miles, turn to the north and drive for 3
miles, drive west for 10 miles, and arrive at your destination.
a) How far from where you started did you end up?
b) If you wanted to travel directly to your destination without following the streets (“as the
crow flies”), what angle would you take? What direction would a compass read?
c) Now try adding the vectors in a different order. For example, start with the 5 miles east,
then 3 miles north, etc., as long as you add all four vectors. Compare the result to the sum
in part a). Draw the vectors in the order you used.
Answer:
(a). The distance between started point and end point is 13.92 miles.
(b), The direction is 68.9° north - west.
Explanation:
Given that,
You drive north for 10 miles, turn right and drive east for 5 miles, turn to the north and drive for 3 miles, drive west for 10 miles, and arrive at your destination.
According to diagram
(a).We need to calculate the distance
Using pythagorean theorem
[tex]EO=\sqrt{(ED)^2+(DO)^2}[/tex]
Put the value into the formula
[tex]EO=\sqrt{5^2+(13)^2}[/tex]
[tex]EO=13.92\ miles[/tex]
(b). We need to calculate the direction
Using formula of direction
[tex]\theta=\tan^{-1}(\dfrac{OD}{DE})[/tex]
Put the value into the formula
[tex]\theta=\tan^{-1}(\dfrac{13}{5})[/tex]
[tex]\theta=68.9^{\circ}[/tex]
The direction is 68.9° north - west.
(c). We need to draw a vector diagram
According to vector diagram,
The distance between started point and end point will be same.
Hence, (a). The distance between started point and end point is 13.92 miles.
(b), The direction is 68.9° north - west.
Which principle of sports rule provides the opportunity for equal competition for everyone?
Answer: Strict Equality
The Principle of Strict Equality. All competitors receive the same prize, irrespective of their ranking as winners and losers and whether or not such a ranking is employed. That is not to say that there are literally no competitions or games which adhere to this principle.
Answer:
Fairness
Explanation:
12x^2=108 i need help
Answer:
24
Explanation:
12 24 36 and go on
Answer:
3 or -3
Explanation:
3^2 or -3^2=9, And 12*9=108.
Help me please I only have a few minutes to get this doneplease and thank q
02.04 Thermal Energy and Chemical Change lab report
Answer:
You should use the evaporative cooler
Explanation:
Because its not fast but will help you remover around the tracks.
A student leaves their history classroom and walks 20 meters north to a drinking fountain. Then the student turns and walks 50 meters south to their art classroom. What is the magnitude of the total distance traveled by the student?
a. 20 m
b. 30 m
c. 50 m
d. 70 m
Answer:
D
Explanation: Given that a student leaves their history classroom and walks 20 meters north to a drinking fountain. Then the student turns and walks 50 meters south to their art classroom.
The distance is a scalar quantity.
The distance = 50 + 20
distance = 70 metres
Therefore, the magnitude of the total distance traveled by the student is 70 metres. Which is option D
which of the items has the least inertia while at rest? A. penny. B. airplane. C. frog. D. dog.
Answer:
A penny
Explanation:
