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
drek231 [11]
3 years ago
12

It is easy to jump on a smooth surface than of cemented surface

Physics
1 answer:
Reil [10]3 years ago
7 0
There is list friction on the smooth surface the concrete its surface is rough which creates friction when you jump
You might be interested in
Hurricanes are least likely to form in which of the following?
Sholpan [36]
The best and most correct answer among the choices provided by the question is the second choice "Lake Michigan"


A hurricane<span> is a storm that occurs in the </span>Atlantic Ocean <span>and northeastern Pacific </span>Ocean<span>, a typhoon occurs in the northwestern Pacific </span>Ocean<span>, and a cyclone occurs in the south Pacific or Indian </span>Ocean<span>. Tropical cyclones can be categorized by intensity.</span>

I hope my answer has come to your help. God bless and have a nice day ahead!
3 0
3 years ago
Describe how sound waves move through different types of matter. Compare the speed at which sound moves through solids, liquids,
Andru [333]
Sound waves need different media in order to travel. This travels by the movement of the atom transferred to another up to its destination. The speed of sound is greatest in solids since the molecules of solid are closely packed together, followed by liquid and they are slowest in gases. 
7 0
3 years ago
A force of 14 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching i
enyata [817]

Answer:

W = 19.8 J

Explanation:

14 lb force is required to stretch the spring by 4 inch distance

So we have

F = 14 lbf

F = 6.35 \times 9.8 N

F = 62.3 N

stretch in the spring is given as

x = 4 in = 0.1016 m

now we will have

F = kx

62.3 = k(0.1016)

k = 613.125 N/m

Now we need to find the work to stretch it by x = 10 in = 0.254 m

so we have

W = \frac{1}{2}kx^2

W = \frac{1}{2}(613.125)(0.254)^2

W = 19.8 J

7 0
3 years ago
The same element with different molecular structures are called?
jonny [76]
The answer is allotropes. Hope this helps. Have a great day.
6 0
3 years ago
Read 2 more answers
4. A high school athlete runs 400 m in 52.20 sec. What is his speed in mph?<br> 14100<br> 1110
Serggg [28]

Answer:

28,800m/p second

Explanation:

Calculate the distance per second so, 400m/50 s= 8m/p second now knowing the speed/hour and knowing an hour has 3,600 seconds,multiply it by 8 then you will get 28,800m/p second, or 28.8km/h

3 0
2 years ago
Other questions:
  • A road with a positive cross slope is highest __________.
    8·1 answer
  • Which statement explains the similarity between momentum and kinetic energy of an object?
    8·1 answer
  • Two point charges each have a value of 3.0 c and are separated by a distance of 4.0 m. what is the electric field at a point mid
    14·1 answer
  • An object in a certain direction with an acceleration in the perpendicular direction
    14·1 answer
  • ) Water falls from a height of 60m at the rate of 15kg/s to operate a turbine. The losses due to frictional force are 10% of ene
    7·1 answer
  • What is the taste of the resulting mixture?
    15·2 answers
  • A chef fills 50ml container with 43.5 g of cooking oil. what is the density of the oil?
    5·1 answer
  • In scientific notation, (6.2 x 10^4) x (3.3 x 10^2 ) equals ____________________.
    10·2 answers
  • When do i know if the acceleration (a) in newtons second law is 0? ​
    14·1 answer
  • What are non-metals?<br>explain briefly​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!