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
Tom [10]
2 years ago
14

An object weighing 49 N is pushed across a floor by a force of 12 N. What is the acceleration of the object?

Physics
1 answer:
NISA [10]2 years ago
3 0

Answer:

Explanation:

Given parameters:

Weight of object  = 49N

Force applied = 12N

Unknown:

Acceleration of object  = ?

Solution:

The acceleration of the object is found by dividing the force by the weight;

 Acceleration  = \frac{12}{49}   = 0.25m/s²

You might be interested in
An electron enters a region between two large parallel plates made of aluminum separated by a distance of 2.0 cm and kept at a p
kotykmax [81]

Answer:

a)v=1.77\times 10^6\ m/s

b)v=3.872\times 10^6\ m/s

c)v=5.5\times 10^6\ m/s

d)v=6.7\times 10^6\ m/s

e)v=7.7\times 10^6\ m/s

Explanation:

Given that

d = 2 cm

V = 200 V

u=4\times 10^5\ m/s

We know that

F = E q

F = m a

E = V/d

So

m a =  q .V/d b            

a=\dfrac{q.V}{m.d}                 ---------1

The mass of electron

m=9.1\times 10^{-31}\ kg

The charge on electron

q=1.6\times 10^{-19}\ C

Now by putting the all values in equation 1

a=\dfrac{1.6\times 10^{-19}\times 200}{9.1\times 10^{-31}\times 0.02}\ m/s^2

a=1.5\times 10^{15}\ m/s^2

We know that

v^2=u^2+2as

a)

s = 0.1 cm

v^2=(4\times 10^5)^2+2\times 1.5\times 10^{15}\times 0.1\times 10^{-2}

v=\sqrt{3.16\times 10^{12}}\ m/s

v=1.77\times 10^6\ m/s

b)

s = 0.5 cm

v^2=(4\times 10^5)^2+2\times 1.5\times 10^{15}\times 0.5\times 10^{-2}

v=\sqrt{1.5\times 10^{13}}\ m/s

v=3.872\times 10^6\ m/s

c)

s = 1 cm

v^2=(4\times 10^5)^2+2\times 1.5\times 10^{15}\times 1\times 10^{-2}

v=\sqrt{3.06\times 10^{13}}\ m/s

v=5.5\times 10^6\ m/s

d)

s = 1.5 cm

v^2=(4\times 10^5)^2+2\times 1.5\times 10^{15}\times 1.5\times 10^{-2}

v=\sqrt{4.5\times 10^{13}}\ m/s

v=6.7\times 10^6\ m/s

e)

s = 2 cm

v^2=(4\times 10^5)^2+2\times 1.5\times 10^{15}\times 2\times 10^{-2}

v=\sqrt{6.06\times 10^{13}}\ m/s

v=7.7\times 10^6\ m/s

5 0
3 years ago
Read 2 more answers
Who’s going faster in the attached image?
ioda

Answer:

Art

Explanation:

Polly's line is linear, while arts line is going up with constant velocity. There for art is going faster.

8 0
3 years ago
Read 2 more answers
How are mechanical waves and electromagnetic waves alike?
miss Akunina [59]

I got this answer from the internet

6 0
3 years ago
Read 2 more answers
Gamma rays have more energy than X-rays. What else is true about gamma rays?
posledela
The answer is D. They have a higher frequency than X-rays.

Gamma-rays falls in the electromagnetic spectrum above, Gamma-rays have frequencies greater than 10¹⁸ cycles per second, or Hertz (Hz)
5 0
3 years ago
A car of mass 487 kg travels around a flat, circular race track of radius 53.3 m. The coefficient of static friction between the
aleksklad [387]

Answer:

9.96 m/s

Explanation:

mass of car, m = 487 kg

radius of track, R = 53.3 m

coefficient of static friction, μ = 0.19

acceleration due to gravity, g = 9.8 m/s^2

let v be the maximum speed so that the car can go without flying off the track.

The formula for the maximum speed is given by

v_{max}=\sqrt{\mu Rg}

v_{max}=\sqrt{0.19\times53.3\times9.8

vmax = 9.96 m/s

8 0
3 years ago
Other questions:
  • Tara heated a beaker on a hot plate. Then, she set the solution on the countertop to cool. Her lab partner, Molly, did not reali
    14·1 answer
  • If you break quartz to learn if it splits smoothly in a certain direction, what physical property are you testing?
    13·2 answers
  • What happens to matter when we add or take away heat energy?
    15·1 answer
  • If the moon phase is seen as a waxing crescent moon in london, what phase of the moon would be seen in new york if it's viewed a
    14·1 answer
  • Consider the cantilever-beam Wheatstone bridge system that has four strain gages (two in compression and two in tension). Which
    14·1 answer
  • Which is not a way to conserve existing energy resources?
    8·2 answers
  • Coulomb measured the deflection of sphere A when spheres A and B had equal charges and were a distance d apart. He then made the
    8·1 answer
  • I NEED a LOT of help PLEASE!
    10·2 answers
  • What are the units of potential difference??
    15·1 answer
  • A man leave his townA at 8 am for town B which is 384km away and he reach at4pm what is average speed in m/s
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!