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
Shalnov [3]
3 years ago
10

A spring had a spring constant of 48N/m. The end of the spring hangs 8m above the ground. How much weight can be placed on the s

pring so that the end of the spring is 2m above the ground

Physics
1 answer:
Oksi-84 [34.3K]3 years ago
7 0

Answer:

28.8kg

Explanation:

h1=8m

h2=2m

h2-h1=6m

k=48 N/m

g=10m/(s^2)

w=F

10m=6*48

m=28.8kg

You might be interested in
Find the energy released in the fission reaction¹₀n + ²³⁵₉₂U → ⁹⁸₄₀Zr + ¹³⁵₅₂Te +3(¹₀n) The atomic masses of the fission product
ikadub [295]

Fission reaction is given

¹₀n + ²³⁵₉₂U → ⁹⁸₄₀Zr + ¹³⁵₅₂Te +3(¹₀n)

The atomic masses of the fission products are 97.912735 u for ⁹⁸₄₀Zr and 134.916450 u for ¹³⁵₅₂Te. Hence, the energy released in fission reaction is 191.715 MeV.

How to find the energy released in the given fission reaction?

We know, that the atomic mass of the elements are as follows:

  • ⁹⁸₄₀Zr - 97.9120u
  • ¹³⁵₅₂Te - 134.9087u
  • ²³⁵₉₂U  - 235.0483923u
  • n = 1.008665u

In order to find the mass difference, we will calculate the initial mass and the mass of products.

The equation for the reaction:

n + ²³⁵₉₂U → ⁹⁸₄₀Zr + ¹³⁵₅₂Te +3n

Mass of initial reagents is 1.008665u + 235.0483923u = 233.052588u

Product of the reagents is 97.9120u + 134.9087u + 3(1.008665u) = 235.846773u

Now, using the formula of

E=(\triangledown m)c^2

E=(0.205815u)\frac{931.494MeV/c^2}{u} c^2=191.715MeV

Hence, the energy released in fission reaction is 191.715 MeV.

To learn more about fission reactor, refer to:

brainly.com/question/23276812

#SPJ4

4 0
2 years ago
a steam engine work on its vicinity 285 k heat is released with the help of 225 c energy absorbed to the system what is the effi
zvonat [6]

The efficiency of steam engine is  26.66 %.

<h3>What is Efficiency?</h3>

The efficiency is defined as the work done by the engine divided by the heat supplied.

Work done is the difference between the heat supplied and heat rejected.

So, efficiency η = (Qs -Qr) / Qs

Given is the heat supplied Qs = 225 Joules and heat rejected Qr =285 . then the work done is

W = 225 -225 = - 60 Joules

Efficiency η  = 60/225 x 100%

η = 26.66 %

Thus, the efficiency of the steam engine is  26.66 %.

Learn more about efficiency.

brainly.com/question/13828557

#SPJ2

8 0
2 years ago
Read 2 more answers
A neutral wire without current flowing creates A.) an electric field. B.) a magnetic field. C.) both an electric field and magne
Wewaii [24]
Believe the answer is B
6 0
3 years ago
If the pressure acting on a given sample of an ideal gas at constant temperature is tripled, what happens to the volume of the g
lorasvet [3.4K]

Answer:

a)The volume is reduced to one-third of its original value.

Explanation:

For a gas at constant temperature, we can apply Boyle's law, which states that the product between pressure and volume is constant:

pV=const.

where p is the pressure and V the volume.

In our case, this law can also be rewritten as

p_1 V_1 = p_2 V_2

where the labels 1 and 2 refer to the initial and final conditions of the gas.

For the gas in the problem, the pressure of the gas is tripled, so

p_2 = 3p_1

And re-arranging the equation we find what happens to the volume:

V_2 = \frac{p_1 V_1}{p_2}=\frac{p_1 V_1}{3p_1}=\frac{V_1}{3}

so, the volume is reduced to 1/3 of its original value.

6 0
3 years ago
Kelly sits on a rock in a field. Which of the following examples correctly name force pairs? Select all that apply.
ch4aika [34]

Answer:

A

Explanation:

5 0
3 years ago
Other questions:
  • Suppose a certain scale is not calibrated correctly, and as a result, the mass of any object is displayed as 0.75 kilogram less
    9·1 answer
  • How does temperature change as you go from the surface toward the center of the earth?
    8·1 answer
  • Would someone plz help a shister outttt
    12·1 answer
  • The atomic radius of metal X is 1.20 × 102 picometers (pm) and a crystal of metal X has a unit cell that is face-centered cubic.
    13·1 answer
  • A 1,000 of c-14 is left to decay radioactively. The half life of Carbon-14 is approximately 5,700 years. What fraction of the sa
    6·1 answer
  • Match the technology that uses radio waves to the field in which it is used
    13·1 answer
  • A number of compounds containing the heavier noble gases, and especially xenon, have been prepared. One of these is xenon hexafl
    10·1 answer
  • A charged particle isinjected into a uniform magnetic field such that its velocity vector is perpendicular to themagnetic field
    8·2 answers
  • A car is traveling at 21m/s. It accelerates at 1.4m/s2 for 11s. How fast is the car moving after the acceleration?
    5·1 answer
  • When firing a handgun, how far should you hold it from your body?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!