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
malfutka [58]
3 years ago
15

If the mass of a

Physics
1 answer:
mixer [17]3 years ago
5 0

Answer:

The final acceleration becomes (1/3) of the initial acceleration.

Explanation:

The second law of motion gives the relationship between the net force, mass and the acceleration of an object. It is given by :

F=ma

m = mass

a = acceleration

According to given condition, if the mass of a  sliding block is tripled while a constant net force is applied. We need to find how much does the acceleration decrease.

a=\dfrac{F}{m}

Let a' is the final acceleration,

a'=\dfrac{F}{m'}

m' = 3m

a'=\dfrac{F}{3m}

a'=\dfrac{1}{3}\times \dfrac{F}{m}

a'=\dfrac{1}{3}\times a

So, the final acceleration becomes (1/3) of the initial acceleration. Hence, this is the required solution.

You might be interested in
A cliff jumper runs off a 15 m high cliff. Rocks extend 3.0 m past the cliff bottom. We can ignore air resistance.What is the mi
posledela
The correct answer would be 1.7 m/s:

Start with what you know. In the y-direction, we know the jumper must fall 15 meters and starts with 0 velocity in the y direction. You can also assume that the acceleration of gravity is pulling down on the jumper at 9.8 m/s. Once you have these three you can plug it into kinematic a equation to find time

x=Vot+1/2at^2
15=(0)t+1/2(9.8)(t)^2
t=1.75

You get time=1.75 seconds. Since this is a kinematics problem, both the x and y direction have the same amount of time. You can then see that the x displacement is 3 to avoid the rocks, and acceleration is 0 in the x direction because no force is speeding it up. Therefore you can use the same equation to find initial velocity and final velocity, which are gonna be the same because we have 0 acceleration:

X=Vot+1/2at^2
3=Vi(1.75)+1/2(0)(1.75)^
Vi=1.7

1.7 is your answer

I have my work in the picture I really like to make charts to help keep everything organized if that helps you
6 0
3 years ago
A Carnot engine takes 3000 J from a reservoir at 600 K, does some work, and discards some heat to a reservoir at 300 K. What is
exis [7]

Answer: 50%

Explanation: efficiency=power input/power output ×100

Eff.=300/600 ×100

Eff=½×100

Eff=50%

6 0
3 years ago
How much mass of ice at 0℃ must melt when ∆Q=948000 J of heat energy is added to it?
butalik [34]
<h2>The ice melted is nearly 2.8 kg </h2>

Explanation:

The quantity of heat required to melt the ice can be found by the relation .

ΔQ = m x L

here L is used for the latent heat of fusion .

Its value is 334 J per gram for ice .

Thus m = \frac{\Delta Q}{L} = \frac{948000}{334}  = 2836 gram

or = 2.8 kg approx

6 0
3 years ago
A Blu-ray disc is approximately 8 centimeters in diameter. The drive motor of the Blu-ray player is able to rotate up to 10,000
Ray Of Light [21]

Answer:

The question is incomplete. Here is the complete question:

A Blu-ray disc is approximately 8 centimeters in diameter. The drive motor of the Blu-ray player is able to rotate up to 10,000 revolutions per minute, depending on what track is being read. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates. (b) Find the maximum linear speed (in meters per second) of a point on the outermost track as the disc rotates.

Answer:

(a) 1047.2 rad/sec

(b) 41.9 m/s

Explanation: Please see the attachments below

8 0
3 years ago
Read 2 more answers
a wildlife biologist examines for a genetic trait he suspects may be linked to sensitivity to industrial toxins in the environme
Talja [164]
The probability he finds the trait in none of the dogs
7 0
3 years ago
Other questions:
  • The illustration shows the basic unit of life it is
    5·2 answers
  • This is a map that shows hot spots around the world.
    8·2 answers
  • The planet zeta has 2 times the gravitational field strength and sane mass as the earth , how does the radius of zeta compare wi
    15·1 answer
  • What is the force that acts against motion
    10·1 answer
  • Is length a <br> vector,<br> scalar<br> ,both,<br> neither
    15·1 answer
  • when a seagull picks an oyster up into the sky and then lets it drop on the rocks below to open the shell; where is the oysters
    9·2 answers
  • Mr. Tolman believes that our universe is expanding, but with all of the gravitational force from the celestial bodies of space,
    14·1 answer
  • PLZZZ HELP ME ASAP!!!! WILL GIVE BRAINLIEST AND EXTRA POINTS!! IM DESPERATE!!
    10·2 answers
  • 1.) What is the equation for Average Speed?
    10·2 answers
  • If a substance changes from a vapor to a liquid it ____ HELP FAST
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!