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
jeka57 [31]
3 years ago
6

Please Help!!! For A&B

Physics
1 answer:
klio [65]3 years ago
5 0

Answer:

A. 40N

B. 5m/s

Explanation:

A.

Impulse is equal to the area under the curve of a force vs. time graph. In this case, the area is in the shape of a triangle with base 8 (12-4=8) and perpendicular height 10:

<em>Area of a triangle = (1/2)bh</em>

A=(1/2)*8*10

=40

ANSWER: 40N

B.

<em>Impulse = mass * velocity</em>

40 = 8v

v = 5

ANSWER: 5m/s

You might be interested in
A 10kg sphere hits a stationary 8kg sphere. After the collision the 8kg sphere moves off in the positive direction at 4m/s. If t
Bumek [7]

M = mass of the first sphere = 10 kg

m = mass of the second sphere = 8 kg

V = initial velocity of the first sphere before collision = 10 m/s

v = initial velocity of the second sphere before collision = 0 m/s

V' = final velocity of the first sphere after collision = ?

v' = final velocity of the second sphere after collision = 4 m/s

using conservation of momentum

M V + m v = M V' + m v'

(10) (10) + (8) (0) = (10) V' + (8) (4)

100 = (10) V' + 32

(10) V' = 68

V' = 6.8 m/s

7 0
3 years ago
The Earths magnetic field deflects the flow of current from?
Zarrin [17]
<span>Most of the earth's fresh water is stored as ice in the Arctic and Antarctic regions of the globe.</span>
5 0
3 years ago
Echolocation is based on the use of sound
Anni [7]
Yes echolocation is based on the use of sound and knowing where the sound comes from without having to look for it a lot of soldiers on the battle field need to know how to use echolocation so they can basically not die
5 0
3 years ago
Read 2 more answers
The number of single covalent bonds that most non metallics can form
Veronika [31]
Nonmetals will readily form covalent bonds with other nonmetals in order to obtain stability, and can form anywhere between one to three covalent bonds with other nonmetals depending on how many valence electrons they posses.
8 0
3 years ago
Why does the surfaces of the moon, mars and earth vary in appearance
Murrr4er [49]

Answer:

due to its distance ..............

4 0
3 years ago
Other questions:
  • How could you use a rock to measure the height of your ceiling?
    15·1 answer
  • How much energy must be added to a bowl of 125 popcorn kernels in order for them to reach a popping temperature of 175°C? Assume
    14·1 answer
  • What are some similarities between heat and temperature? 
    12·2 answers
  • The Celsius tempersture scale is based on which of the following? a) vapor b) the human body c) the boiling point of air d) the
    13·2 answers
  • A wave is produced from a vibrating string on a violin. Two observers are standing 20 m and 40 m away from the musician. The obs
    15·1 answer
  • Why do waves with frequencies higher than visible light hurt while those with lower frequencies do not affect us?
    6·2 answers
  • Need Help Please and Thank You). Question 1: Explain how longitudinal waves and transverse waves are similar to each other and d
    5·1 answer
  • Two forces are applied to a 2.0 kg block on a frictionless horizontal surface. F1 = 8.ON is applied to the left while F2 = 3.0 N
    13·1 answer
  • car was moving in a straight road of length 320 km it covered 240 km with an average velocity 75 km/hr then it ran out of fuel a
    8·1 answer
  • In order for a ball to move upward, the initial velocity of the ball must be greater than _____.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!