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
larisa86 [58]
3 years ago
10

A 15.0cm string is how many times shorter than the 30.0cm string?

Physics
2 answers:
coldgirl [10]3 years ago
7 0

Answer:

B

Explanation:

Just divide 30 by 15 to get the number 2

That's it!

Hope this helped and vote Brainliest, Thx :)

Alex Ar [27]3 years ago
3 0

Easy. answers B. Because 15.00x2=30

You might be interested in
A hand pump is being used to inflate a bicycle tire that has a gauge pressure of 59.0 lb/in2. If the pump is a cylinder of lengt
bagirrra123 [75]

Answer:

∴The air cannot be made to flow in with the given pump at the given conditions.

Explanation:

Given:

  • gauge pressure of bicycle tyre, P_g=59\ lb.in^{-2}
  • length of cylinder of the pump, l=17.4\ in
  • area of the the cylinder of the pump, a= 3\ in^2
  • we have the density of air at STP, \rho=4.4256\times 10^{-5}\ lb.in^{-2}

The piston must be pushed more than the pressure inside the tyre:

P_g=\rho\times V\div a

59=4.4256\times 10^{-5}\times a\times h\div a

h=13.33\times 10^5\ in

∴The air cannot be made to flow in with the given pump at the given conditions.

4 0
3 years ago
Suppose you increase your walking speed from 6 m/s to 14 m/s in a period of 1 s. What is your acceleration?
klasskru [66]
A = delta v over delta t delta v is calculated with final velocity less initial velocity so delta v is 14 - 6 that is 8m/s and delta t is calculated with final time less initial time as initial always is 0 then is 1 - 0 that is 1 then a = 8m/s over 1 that is 8 then the acceleration is 8m/s^2 (remember that is squared.)
6 0
3 years ago
Read 2 more answers
a racing car undergoes a uniform acceleration of 4.00m/s2. if the net force causing the acceleration is 3.00 times 10^3 N, what
yKpoI14uk [10]

Answer: 750Kg

Explanation:

Recall that force is the product of the mass M, of an object moving at a uniform acceleration.

i.e Force = Mass x Acceleration

In this case, Mass = ?

Force = 3.00 x 10^3 N = (3.00 x 1000N)

= 3000N

Uniform acceleration = 4.00m/s^2

Force = Mass x Acceleration

3000N = Mass x 4.00m/s^2

Mass = (3000N/4.00m/s^2)

Mass = 750Kg (The SI unit of mass is kilograms)

Thus, the mass of the car is 750Kg

4 0
3 years ago
Moving from the element with atomic number 10 to atomic number 11 on the periodic table, there is a change in reactivity. In thr
bazaltina [42]

Answer:

Explanation:

Ne has its outside shell full of electrons; therefore, its reaction with other elements is minimal if at all. Na, the next element, has 1 more proton and 1 more electron. More importantly that added electron is in the outside shell. It can fill that shell by ADDing 7 more electrons or LOSing the one electron. Obviously, it loses the one electron and it does so with gusto which makes Na a very reaction element while Ne is not reactive at all. Now follow oobleck's instructions, add what you read to what I've written,then summarize all of it in your own words.

7 0
3 years ago
How are magnetic poles and electrical charges similar? A. Their same forces repel each other, and their opposite forces attract
melomori [17]

Answer:

A. Their same forces repel each other, and their opposite forces attract each other.

Explanation:

As we know by the property of electric charge that similar charges repel each other and opposite charges attracts each other

So here we have similar situation in magnets also

Two similar poles or like poles of magnet i.e. North - North poles or South - South poles always repel each other

And also we can see that opposite poles of magnet each other i.e. North pole and south pole always attract each other.

SO here correct answer is

A. Their same forces repel each other, and their opposite forces attract each other.

8 0
3 years ago
Other questions:
  • A plane flies at 200 mph for the first and last half hour of a flight. it flies at 400 mph the rest of the time. the route is 10
    9·2 answers
  • you have two pieces of wire that allow electrons to pass through them when they are connected to each other. if you insert a pie
    9·1 answer
  • Which of the following is a region where magnetic force will affect other magnets?
    10·1 answer
  • At time t=0, a particle is located at the point (3,6,9). It travels in a straight line to the point (5,2,7), has speed 8 at (3,6
    13·1 answer
  • Which hormones help build bones?
    15·2 answers
  • The diagram below shows the forces acting on a box. Describe the motion of the box. Calculate all forces
    13·1 answer
  • What are beats? Physics B
    12·1 answer
  • What happens to atoms as you move across the periods on the periodic table?
    10·1 answer
  • Krebs Cycle experiment: if you want to increase the rate of the succinate forming fumarate, what could you do to the experiment?
    15·1 answer
  • 6.1 Write down, in words, the principle of conservation of mechanical energy.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!