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
ivanzaharov [21]
3 years ago
13

If an object accelerates at 10 m/s2 for 4 seconds, how much will its velocity change by?

Physics
1 answer:
jek_recluse [69]3 years ago
5 0

Answer:

40 m/s

Explanation:

Acceleration formula: a=\frac{\triangle v}{t}

Δv=at=10*4=40

You might be interested in
If C is 1kg and D is 100kg, and the initial velocities of both balls are 5m/s, how would the magnitude of the forces exerted by
kupik [55]

Answer:

Explanation:

The forces exerted by each mass is best understood in terms of their momentum.

Momentum is a sort of compelling force or impulse. It is given as:

                  Momentum  =  mass x velocity

Let us consider the momentum of the balls;

Substance C;

    Mass  = 1kg

     Velocity  = 5m/s

    Momentum of C = 1 x 5  = 5kgm/s

Substance D:

      Mass  = 100kg

      Velocity  = 5m/s

     Momentum of D  = 100kg x 5m/s  = 500kgm/s

Body D has a higher momentum compared to Body C. This suggests that body D will exert a higher force than C when they collide.

The higher the momentum, the more the force of impact it has.

3 0
3 years ago
A student claims "everything falls at the same acceleration rate on the Moon, where there is no air or friction," how would you
Alexeev081 [22]

Now let’s say you’re on the Moon. If you were to drop a hammer and a feather from the same height, which would hit the ground first?

Trick Question! On the moon both objects would hit the ground at the same time. On Earth, the hammer lands first.

So yeah, the student is right. Galileo gave us this theory long ago.

5 0
3 years ago
1.
irga5000 [103]

Answer:

Explanation:

solution is found below

6 0
3 years ago
3. Pedro threw a penny into a fountain and it sank to the bottom. Which of the following would explain
____ [38]

Answer:

its B because we're not talking about mass even tho most people would have chosen A cuz it says mass and u they would think its apart of density but if ur testing to see density ur figuring out which object will sink and which one will float so da reason why da penny snuck it cuz da density is greater den da water and copper has a better chance of sinking den floating so dats why its B I hope dis helps :3

3 0
3 years ago
Read 2 more answers
A car travels a distance of 400 m in 5 seconds. Calculate its average velocity.
ikadub [295]

Answer:

80 m/s

Explanation:

x = 400 m

t = 5 s

x = vt,

400 = v(5),

80 = v

5 0
3 years ago
Read 2 more answers
Other questions:
  • What type of galaxy has mostly old stars, without a lot of star formation?
    13·2 answers
  • In Fig. 21-25, particle 1 of charge &1.0 mC and particle 2 of charge $3.0 mC are held at separation L ! 10.0 cm on an x axis
    14·1 answer
  • Assume the average value of the vertical component of Earth's magnetic field is 42 μT (downward) in some region that has an area
    14·1 answer
  • A circular loop of radius 11.9 cm is placed in a uniform magnetic field. (a) If the field is directed perpendicular to the plane
    7·2 answers
  • Calculate the total resistance in the circuit​
    7·2 answers
  • Can someone help me?
    15·1 answer
  • Which one of these are considered as mechanical energy?
    12·1 answer
  • g A CD is spinning on a CD player. You open the CD player to change out the disk and notice that the CD comes to rest after 15 r
    5·1 answer
  • Define work What is the unit for work? For Physics, thanks.
    5·1 answer
  • A poker is a long thin tool used to move pieces of coal or logs burning in a fire. To be as safe as possible, the poker should b
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!