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
Alex_Xolod [135]
3 years ago
9

Answered: A 4 kg mass is attached to a horizontal spring with the spring constant of 600 N/m and rests on a frictionless surface

on the ground. The spring is compressed 0.5 m past its equilibrium. What is the initial energy of the system.
Answer: 75 joules
Physics
1 answer:
butalik [34]3 years ago
6 0
Glad it’s figured out
You might be interested in
Show all work.
lys-0071 [83]

The new gravitation force at the new location is 40 N

Explanation:

The weight of the astronaut is given by the equation

F=mg (1)

where

m is the mass of the astronaut

g is the acceleration of gravity

The acceleration of gravity at a certain distance r from the centre of the Earth is given by

g=\frac{GM}{r^2}

where G is the gravitational constant and M is the Earth's mass. So we can rewrite eq.(1) as

F=\frac{GMm}{r^2}

When the astronaut is on the Earth's surface, r=R (where R is the Earth's radius), so his weight is

F=\frac{GMm}{R^2}=640 N

Later, he moves to another location where his distance from the Earth's surface is 3 times the previous distance, so the new distance from the Earth's centre is

r'=3R+R=4R

Therefore, the new weight is

F'=\frac{GMm}{(4R)^2}=\frac{1}{16}\frac{GMm}{R^2}=\frac{F}{16}

Which means that his weight has decreased by a factor 16: therefore, the new weight is

F'=\frac{640}{16}=40 N

Learn more about gravitational force:

brainly.com/question/1724648

brainly.com/question/12785992

#LearnwithBrainly

3 0
3 years ago
Why does the number 54,289.00 have seven significant figures and not five
nadya68 [22]
The 2 spots after the decimal still counts toward the total  the figures 
4 0
3 years ago
Read 2 more answers
Molecular clouds range in mass from a few times the mass of our Sun (solar masses) to 10 million solar masses. Individual stars
babymother [125]

Answer:

Explained in Depth.

Explanation:

It is all matter of what kind of stars are we talking about, for simplicity let's say we are talking about normal stars such as our sun.

If there is a molecular cloud that has a mass that is slightly larger than our sun then it is possible that the gravity will eventually pull together cloud into a sphere that would have enough mass to start nuclear fusion which is important to become a star.

Mass of such cloud would be 1.98x10^30Kg almost equal to the sun's mass.

All of this implies that stars are formed when there is enough mass to let gravity pull it all together into a sphere that has enough gravitational pull to start nuclear fusion inside the core.

3 0
2 years ago
However, had it been a real sound, the sound's pitch would have been increased by the Doppler Effect, since the Falcon was movin
kkurt [141]
I believe the answer is C.
3 0
3 years ago
Read 2 more answers
Which was a testable idea that J.J. Thomson developed through his experiments
Natalka [10]
Cathode ray tube, plumb pudding model, atoms were not hard spheres, but had smaller parts.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Two students are relaxing in their dorm room and are too lazy to get up and shut the door. One of the students suggests throwing
    13·2 answers
  • List six forms of electromagnetic radiation from the shortest waves(highest energy) to the longest waves (lowest energy)
    11·1 answer
  • An 3.7 lb hammer head, traveling at 5.8 ft/s strikes a nail and is brought to a stop in 0.00068 s. The acceleration of gravity i
    10·1 answer
  • 1. Determina el momento que produce una fuerza de 7 N tangente a una rueda de un metro de diámetro, sabiendo que el punto de apl
    5·1 answer
  • How do cells maintain homeostasis
    5·1 answer
  • A finite resource in the environment that keeps a population from steadily increasing is known as
    13·1 answer
  • How do intensity, frequency, and time affect physical fitness?
    5·1 answer
  • A golf ball rolls up a hill toward a miniature-golf hole. Assume the direction toward the hole is positive.
    14·1 answer
  • I WILL MARK BRAINLIEST
    5·2 answers
  • Moving plates form what tyes of boundaries?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!