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
katrin2010 [14]
3 years ago
5

An object with a mass of 100 grams is dropped from a certain height and has a velocity of 60 meters/second. if the potential ene

rgy of this object is 179.99 joules, how high was the object when it was dropped?
Physics
1 answer:
joja [24]3 years ago
6 0
KE=PE
1/2*m*V^2=mgh
1/2*0.100*(60)^2=0.100*10*h
0.05*3600=h
180 meters=h
You might be interested in
A car of weight 300N moved through a distance of 10m when pushed by 3 students
Sati [7]

The work done by the three students is 3,000 J.

The energy transferred in the process is 3,000 J.

<h3>What is work done?</h3>
  • Work done is the product of force and distance moved by the object.

W = Fd

The work done by the three students is calculated as follows;

W = 300 x 10

W = 3,000 J

<h3>What is energy transfer?</h3>
  • This is means by which energy is converted from one form to another.

The energy transferred in the process is determined by work energy theorem.

E = W

E = 3,000 J

Learn more about work-energy theorem here: brainly.com/question/22236101

3 0
2 years ago
900n pushes a wedge 0.10 m into a log, if the work done on the log is 50j what is the efficiency of the wedge
mariarad [96]

Answer:

100

Explanation:

mark me brainliest

7 0
3 years ago
18. How does magnetic force affect the energy in a system of magnets when the magnets are released and begin to move? a The magn
astra-53 [7]

When the magnets are released and begin to move, the magnetic force changes potential energy into kinetic energy;<u> option D</u>

<h3>What is magnetic force?</h3>

Magnetic force can be defined as the force of attraction or repulsion that is felt or produced between the magnetic poles and electrically charged moving particles.

Magnetic force is the force that exists due to the attractio or repulsion of objects place around the region of space where a maget exerts its force.

When a magnet is released ai a system of magnets and allowed to move it increases the kinetic eergy of the system by converting potential energy to kinetic energy.

Learn more about magnetic force at: brainly.com/question/28989998

#SPJ1

5 0
1 year ago
2. Jenny picks up a guitar and strums. If the sound from the string emanates out at 440 Hz,
erik [133]

Answer:

6.8×10^6 m

Explanation:

f = velocity of light/ wavelength

440= 3×10^8 / wavelength

so

wavelength = 3×10^7/ 44

= 6.8×10^6 m

7 0
3 years ago
A 5000.0-kg car goes from 0 m/s to 70 m/s in 3600 seconds. What is the accelera
antiseptic1488 [7]

given:

mass = 5000 kg

u (initial velocity) = 0 m/s

v (final velocity) = 70 m/s

time taken to change velocity = 3600 s

acceleration = v - u / t

a = 70 - 0 / 3600

a = 70 / 3600

a =  0.0194 m/s2 (approx)

given: mass = 5000 kg

acceleration = 0.0194 (found in 1st part)

force = mass * acceleration

f = ma

f = 5000*0.0194 = 97 N

therefore the acceleration will be 0.0194 m/s2

and the force involved in acceleration will be 97 N

4 0
3 years ago
Other questions:
  • Which statement BEST describes the benefits of muscular fitness training?
    5·1 answer
  • A student walks to school at a speed of 1.2 m/s. if the students mass is 53kg, what is the students kinetic energy
    15·1 answer
  • An elevator of massmis initially at rest onthe first floor of a building. It moves upward,and passes the second and third floors
    6·1 answer
  • Which statements accurately describe mass? Check all that apply. Mass is a chemical property of an object. Mass is measured usin
    9·2 answers
  • Sound wave A has a lower frequency than sound wave B, but both waves
    5·2 answers
  • Heating food under a heat lamp is an example of heat transfer by
    7·1 answer
  • List 5/10 qualities/characteristics of what you believe a leader should have and why
    12·1 answer
  • If an object reflects all of the wavelengths of visible light you would see what color
    12·1 answer
  • A 4kg object has a momentum of 12 kg*m/s, what is the objects velocity?
    8·1 answer
  • 1. The magnitude of the electrostatic force a charge particle exerts on a 5.0nC particle 0.20m away from it is 18N. Find the mag
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!