1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Llana [10]
3 years ago
15

4. A moped travels 20 kilometers in 30 minutes. Calculate its average speed in km/h?

Physics
2 answers:
Nikolay [14]3 years ago
7 0
Average speed = 40km/h
Ann [662]3 years ago
5 0

Answer:

\boxed{Average \: speed = 40 km/h}

Explanation:

Distance travelled = 20 km

Time taken = 30 min

= \frac{30}{60} h

= \frac{1}{2} h

Average \: speed = \frac{Distance \: travelled}{Time \: taken} \\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  \frac{20}{ \frac{1}{2} } \\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 20 \div  \frac{1}{2} \\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 20 \times 2 \\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 40km/h

You might be interested in
An aquarium has a volume of 2.75 cubic
Harlamova29_29 [7]
The aquarium can hold 2750 liters because 1 cubic meter equals 1000 liters.
3 0
3 years ago
Help please an observer at the North Pole sees the moon phase shown below. What Moon phase will be observed approximately one we
ziro4ka [17]

Answer:

it should be a new moon

Explanation:

4 0
3 years ago
Why one part of the earth's surface is arid and dry and a nearby part is lush and wet is explained by the term?
Darina [25.2K]
The process that explains why one part of the earth's surface is arid and dry and a nearby part is lush and wet is areal differentiation. It is<span> an approach to geography that shows </span>the dependence of the distribution of physical and human phenomena and the relation  to each other from the physical location. Areal integration on the other hand is the approach that studies how places interact with each other.
8 0
3 years ago
If a 10kg block is at rest on a table and a 1200N force is applied in the eastward direction for 10 seconds, what is the acceler
gavmur [86]

Answer:

a = 120 m/s²

Explanation:

We apply Newton's second law in the x direction:

∑Fₓ = m*a Formula (1)

Known data

Where:

∑Fₓ: Algebraic sum of forces in the x direction

F: Force in Newtons (N)

m: mass (kg)

a: acceleration of the block (m/s²)

F = 1200N

m = 10 kg

Problem development

We replace the known data in formula (1)

1200 = 10*a

a = 1200/10

a = 120 m/s²

6 0
3 years ago
How do longshore currents shape the land?
Sonbull [250]
Longshore drift has a very powerful influence on the shape and composition of the coastline. It changes the slopes of beaches and creates long, narrow shoals of land called spits, that extend out from shore. Longshore drift may also create or destroy entire “barrier islands” along a shoreline.
5 0
2 years ago
Read 2 more answers
Other questions:
  • Local environmental change have no effect on the global climate true or false
    9·1 answer
  • If you could find the coldest object on Earth, you would find that it _________.
    14·2 answers
  • While wearing rubber-soled shoes, you rub a helium balloon on your sweater. the balloon becomes negative charged. now release th
    9·1 answer
  • An attacker at the base of a castle wall 3.95 m high throws a rock straight up with speed 5.00 m/s from a height of 1.60 m above
    14·1 answer
  • 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?
    8·1 answer
  • CAN SOMEONE PLEASE HELP ME ASAP PLEASE !!!!!​
    15·1 answer
  • The air in a room with volume 180 m3 contains 0.25% carbon dioxide initially. fresher air with only 0.05% carbon dioxide flows i
    13·1 answer
  • L 9.4.3 Test (CST): Bond. Molecular Bond,
    7·1 answer
  • How much force is required to accelerate a 100 kg wagon at 5 m/s2?
    6·1 answer
  • Which of the following is an example of a luminous object? <br>Dog<br> Tree <br>Candle <br>Moon​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!