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
Debora [2.8K]
2 years ago
12

If a change in speed “Δv” occurs and the mass starts at rest, would the change in speed also equal the final speed of the mass?

Physics
1 answer:
stealth61 [152]2 years ago
3 0

Yes, if the mass starts at rest, <u>the change in speed will be equal the final speed</u>, because:

Δv = Vf - Vo

How Vo (Initial velocity) is equal zero, we simplificate:

Δv = Vf

Then, the change of the speed, if the mass starts at rest, will be equal to final velocity.

Greetings.

You might be interested in
A 2.26 kg book is dropped from a height 1.5m what is its acceleration
Arada [10]
The answer is 9.8 ms^-2, because there is only one force acting on the object so the acceleration will be numerically equal to the gravitational field strength.
4 0
2 years ago
You have a nightlight plugged into an outlet in the hallway, which uses 3.5 watts when plugged in. If the house circuit provides
nekit [7.7K]
Base on the said question or problem that state and ask to calculate the current of the said light bulb and in my further calculation and further analysis, I would say that the current of the light bulb would be 0.0292. I hope you are satisfied with my answer and feel free to ask for more 
7 0
3 years ago
Read 2 more answers
How are electrons represented in orbitals?
Alexxx [7]
Electrons move in atomic orbitals (or subshells). there are four different orbital shapes (s p d f). in each shell, the s subshell is at a lower energy than the p. an orbital diagram is used to determine an atom's electron configurations
8 0
3 years ago
The tubes that go from the trachea into the lungs
exis [7]
The answer is bronchi
3 0
3 years ago
A 480N sphere 40.0cm in radius rolls without slipping 1200cm down a ramp that is inclined at 53 0 with the horizontal. What is t
IgorC [24]

As we know that sphere roll without slipping so there is no loss of energy in this case

so here we can say that total energy is conserved

Initial Kinetic energy + initial potential energy = final kinetic energy + final potential energy

\frac{1}{2}mv_i^2 + mgh = \frac{1}{2}mv^2 + \frac{1}{2}I\omega^2+ mgh'

as we know that ball start from rest

v_i = 0

height of the ball initially is given as

h = Lsin\theta

h = 1200sin53 = 960 cm

also we know that

I = \frac{2}{5}mR^2

also for pure rolling

v = r\omega

also we know that

480 = m*9.8

m = 49 kg

now plug in all data in above equation

480*9.60 + 0 = \frac{1}{2}*49*(0.40*\omega)^2 + \frac{1}{2}*\frac{2}{5}*49*(0.40)^2\omega^2 + 0

4608 = 3.92\omega^2 + 1.568\omega^2

\omega^2 = 839.65

\omega = 29 rad/s

So speed at the bottom of the inclined plane will be 29 rad/s

7 0
3 years ago
Other questions:
  • A member of the marching band tunes their trombone inside their school. When they walk out to the field the instrument goes out
    8·2 answers
  • A dart is loaded into a spring-loaded toy dart gun by pushing the spring in by a distance d. For the next loading, the spring is
    6·1 answer
  • Which seismic waves are generally the last to arrive after an earthquake?
    10·1 answer
  • Which of the following results when a crest and trough meet?
    5·1 answer
  • What are two reasons why a home computer scanner requires
    15·2 answers
  • How does the frequency of infrared electromagnetic waves compare with the frequency of radio and microwaves?
    14·1 answer
  • The chemical formula for Glucose is C12H6012.<br> True<br> False
    8·2 answers
  • What force causes rockets to move? <br> ​
    9·1 answer
  • What's the difference between coplanar forces and resultant forces?​
    7·1 answer
  • if the angular momentum of a rigid body is changing, does that mean that there must be a net torque acting on the body?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!