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
ICE Princess25 [194]
3 years ago
8

A box sliding on a horizontal frictionless surface runs into a fixed spring, compressing it a distance x1 from its relaxed posit

ion while momentarily coming to rest. 1)If the initial speed of the box were doubled, how far x2 would the spring compress?
Physics
1 answer:
inn [45]3 years ago
7 0

Answer:twice of initial value

Explanation:

Given

spring compresses x_1 distance for some initial speed

Suppose v is the initial speed and k be the spring constant

Applying conservation of energy

kinetic energy converted into spring Elastic potential energy

\dfrac{1}{2}mv^2=\dfrac{1}{2}kx_1^2----1

When speed doubles

\dfrac{1}{2}m(2v)^2=\dfrac{1}{2}kx_2^2----2

divide 1 and 2

\dfrac{1}{4}=\dfrac{x_1^2}{x_2^2}

x_2=2x_1

Therefore spring compresses twice the initial value

   

You might be interested in
Puck B has twice the mass of puck A. Starting from rest, both pucks are pulled the same distance across frictionless ice by stri
gogolik [260]

Answer:

(a) 1 : 2

(b) same

Explanation:

Let the mass of puck A is m and the mass of puck B is 2 m.

initial speed for both the pucks is same as u and the distance is same for both is s.

let the tension is T for same.

The kinetic energy is given by

K = 0.5 mv^2

(a) As the speed is same, so the kinetic energy depends on the mass.

So, kinetic energy of A : Kinetic energy of B = m : 2m  = 1 : 2

(b) A the distance s same so the final velocities are also same.

8 0
2 years ago
Where is oceanic crust being formed?
Sever21 [200]
Oceanic crust is being formed it is because of the tectonic plates. Tectonic plates work because of volcanic eruption every time it will erupt the tectonic plates underground will have more pressure on magma, then below there will be a volcano thats why their is a volcano in ocean. The heat rises up then it will open, thats what we call divergent bounderies then their will be earthquakes form. Then another plate opens up and the crust is going down, it will stop if the volcano stops erupting because there is more lava left in volcano then it will go underwater and thats why oceanic crust is being formed.

#CarryOnLearning

Butbot na dili na tinuod ga timala ra ko ana
3 0
3 years ago
Why do people put rough strips in their bathtubs?
krok68 [10]

Answer:

hi, the reason is for friction so that they don't fall. subscribe to me on you tube. name is my brainly name

Explanation:

4 0
3 years ago
The volumes of a sample of lead and a sample of platinum are the same: 2 cm3. The density of lead is 11.3 g/cm3 and the density
Vlad1618 [11]

The answer is C. The mass of the platinum sample is greater than the mass of the lead sample. As I explained in a previous answer, if they are the same volume, but one is heavier, then it must be more dense. In this particular example, the platinum is more dense than the lead, and therefore has more mass.

4 0
3 years ago
Read 2 more answers
Người ta đúc một khối nhóm (A) và một khối sắt ( (Fe) hình khối với cũng khói lượng 5 kg Khối lượng riêng (2) của Al và Fe là 2
IrinaVladis [17]
Translate to English please
5 0
3 years ago
Other questions:
  • The elementary charge equals 1.6 x 10^-9 C. <br> a. True<br> b. False
    12·1 answer
  • Two basketball players are essentially equal in all respects. (They are the same height, they jump with the same initial velocit
    15·1 answer
  • Kent needs to know the volume of a sphere. When he measures the radius, he gets 135.4 m with an uncertainty of +4.6 cm. What's t
    15·1 answer
  • A system consists of three particles with these masses and velocities: mass 3.00 kg, moving north at 3.00 m/s; mass 4.00 kg, mov
    5·1 answer
  • Heat energy always moves from a _ _ _ place to a _ _ _ _ _ _ place. The three methods of heat transfer are?
    14·1 answer
  • A short horizontal line leads to a small circle, which then has a longer line point up at about 45 degrees. A gap in the horizon
    11·2 answers
  • I need help please..its too complicated
    9·1 answer
  • The song Arirang is an example of korean F_L_ _O N_​
    14·1 answer
  • A motorist travels 130 km in 2 hours.
    13·1 answer
  • the curiosity rover sent to explore the surface of mars has an electric generator powered by heat from the radioactive decay of
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!