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
madreJ [45]
3 years ago
9

An athlete stretches a spring an extra 40.0 cm beyond its initial length. How much energy has he transferred to the spring, if t

he spring constant is 52.9 N/cm?
a) 4230 kJ
b) 4230 J
c) 423 kJ
d) 423 J
Physics
1 answer:
notsponge [240]3 years ago
4 0

Answer:

<h2>b) 4230 J </h2>

Explanation:

Step one:

given data

extension= 40cm

Spring constant K= 52.9N/cm

Step two:

Required

the Kinetic Energy KE

the expression to find the kinetic energy is

KE= 1/2ke^2

substituting our data we have

KE= 1/2*52.9*40^2

KE=0.5*52.9*1600

KE= 42320Joules

<u>The answer is b) 4230 J </u>

You might be interested in
What do the magnetic field lines on a bar magnet look like?
KATRIN_1 [288]

Answer

A is the correct answer

Explanation:

mark me as brainlist and follow me

6 0
2 years ago
Read 2 more answers
PLEASE HELP!!!! :D When you look at the Sun through a filtered telescope, the visible portion of the Sun appears blotchy.
olya-2409 [2.1K]
<span>When an individual looks through a filtered telescope in which he or she observes the sun, the portion where it appears blotchy is likely to be called the sunspots while the layer of the sun where it shows where it occurs is called the photosphere.</span>
5 0
4 years ago
Read 2 more answers
a car has a velocity of 10ms-1. it accelerates at 0.2 ms-2 for half minute find the total distance travelled and final velocity
Readme [11.4K]

Answer:

Final velocity = 16 m/s

Total distane travelled = 390 m

Explanation:

We can use equation of motion to solve this:

v = u + at \\ v = 10 + 0.2(30) \\ v = 16 {ms}^{ - 1}

s = ut +  \frac{1}{2} a {t}^{2}  \\ s = 10(30) +  \frac{1}{2} (0.2) {(30)}^{2}  \\ s = 390m

5 0
3 years ago
A shunt resistance of 8 Ω is connected to a galvanometer of resistance of 100 Ω. The current in the galvanometer is 0.42 A. What
GuDViN [60]
I have no idea sorry hm 111111
3 0
4 years ago
There is a simple pattern for determining if a binary number is odd. what is it and why does this pattern occur
frez [133]
The answer to this question would be the least number (right most number).

If you add an even number with even number, the result should be even. But if there is just one odd number added, it will be odd.
In binary, all the number is multiplied by 2^{x}. It is pretty clear that all the number should be even beside the first/lowest multiplier 2^{0}  which has potential to be 1. 
5 0
4 years ago
Read 2 more answers
Other questions:
  • Velocity must be measured in units of
    10·1 answer
  • Caleb misjudges while parking, and bumps his car into a brick wall at 3 mph. his bumper brings the car to a stop in about 2 inch
    8·1 answer
  • What is the value of acceleration that the car experiences
    15·1 answer
  • In most cases, what happens to a liquid when it cools?
    7·2 answers
  • The Democratic Party today is generally considered more liberal than the Republican Party because its members and elected offici
    10·1 answer
  • Many radioactive atoms that have large masses undergo radioactive decay by releasing a particle that is identical to a helium-4
    13·1 answer
  • Clothes are flung to the sides of a round tub during the spin-cycle of a washing machine.If the tub's period of rotation is 0.2s
    14·1 answer
  • What is the name of the part of the wave that is labeled -
    11·1 answer
  • George Frederick Charles Searle
    7·2 answers
  • Suppose a uniform electric field 4 N/C is in the positive x-direction .
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!