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
Soloha48 [4]
3 years ago
7

A 5.3 kg block initially at rest is pulled to the right along a frictionless, horizontal surface by a constant horizontal force

of magnitude 21 N. Find the block's speed after it has moved through a horizontal distance of 6.4 m.
Physics
2 answers:
Anni [7]3 years ago
6 0
Whatever the person said
dimulka [17.4K]3 years ago
3 0

Answer:

F= MASS *ACCELERATION

12=6*a

a=2 m/sec^2

v^2-u^2=2*a*s

v^2=2*2*3

v=sqrt(12)

v=3.5 m/sec

work done by force= change in kinetic energy

F*S=0.5*M*U^2-0.5*M*V^2

12*3=0 0.5*6*V^2

V=3.46 M/SEC

Explanation:

#if you need any queshtions answered within secs mins hit me up and I got you!

You might be interested in
Physical properties of minerals graphic organizer
Nadusha1986 [10]
The answer is in the attachment
<span>...........................................</span>

4 0
3 years ago
What is nuclear fission? (Points : 1)
mixas84 [53]
The splitting of the atomic nucleus into parts
4 0
3 years ago
Read 2 more answers
A monochromatic light beam with a quantum energy value of 3.0 ev is incident upon a photocell. the work function of the photocel
otez555 [7]
1.4 ev I'd explain but I gotta roll!
3 0
3 years ago
Read 2 more answers
________ is the average kinetic energy of each atom.<br><br> radiation<br> temperature<br> potential
solong [7]
I think it's temperature
7 0
3 years ago
A baseball is thrown with an initial velocity of 45.4 m/s at an angle of 31.2 ∘ .
sveticcg [70]

Answer:

V (initial vertical velocity) = 45.4 sin 31.2 = 23.52 m/s

1/2 m V^2 = m g h      conservation of energy

h = V^2 / (2 g) = 23.52^2 / 19.6 = 28.2 m       max height

Check:

t = 28.2 / 9.8 = 2.88 sec    time to reach max height

h = 23.52 * 2.88 - 1/2 g 2.88^2 = 27.1 m

8 0
2 years ago
Other questions:
  • A pronghorn antelope has been observed to run with a top speed of 97 km/h. Suppose an antelope runs 1.5 km with an average speed
    13·1 answer
  • A bike travels at a constant speed of 4.0m/s for 5 seconds. How far it goes ?
    14·2 answers
  • Which statement describes the magnetic field lines 2 cm
    5·2 answers
  • What document did the King of England sign that said the people had rights and that the king was not above the law?
    13·1 answer
  • At maximum speed an airplane travels 1720 miles against the wind in 5 hours. Flying with the wind, the plane can travel the same
    7·2 answers
  • What is the tangential speed of a point on a wheel of a car if the point is located 0.114 m from the axis of rotation; and the w
    12·1 answer
  • On what factor does speed of sound depend​
    13·1 answer
  • How does Physics help you as a student?
    15·2 answers
  • A certain part of a flat screen TV has a thickness of 150 nanometers. How many meters is this?
    8·1 answer
  • Select all that apply.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!