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
RoseWind [281]
3 years ago
15

Can someone help please and thank you:)

Physics
1 answer:
Ray Of Light [21]3 years ago
4 0

Answer:

The answer is C.

Explanation:

You might be interested in
Please please help me, don't guess please my test is timed !!
dimulka [17.4K]

Answer:

a) J = F  t = 40 * .05 = 2 N-s

b)  J = 2 N-s     momentum changed by 2 N-s

c) Initial momentum appears to be zero

J = change in momentum = m v2 - m v1 = m v2 = 2 N-s

v2 = J / m = 2 / .057 = 35 m/s

d) if the impulse time was increased and the average force remained the same then the change in momentum would increase with a corresponding increase in velocity attained - note the increase in v2 in part c)

4 0
2 years ago
What units is the Metric System of Measurement based on?
Alex787 [66]

Answer:

metre for length and the kilogram for Mass

3 0
3 years ago
A 2.8-kg cart is rolling along a frictionless, horizontal track towards a 1.2-kg cart that is held initially at rest. The carts
agasfer [191]

Answer with Explanation:

We are given that

Mass of one cart,m_1=2.8 kg

Mass of second cart,m_2=1.2 kg

Initial velocity of one cart,u_1=4.6m/s

Initial velocity of second cart,u_2=-2.7 m/s

a.Total momentum,P=m_1u_1+m_2u_2=2.8(4.6)+1.2(-2.7)

P=9.64 kgm/s

b.Velocity of second cart,v_2=0

According to law of conservation of momentum

Initial momentum=Final momentum

9.64=2.8v_1+1.2\times 0

v_1=\frac{9.64}{2.8}

v_1=3.44m/s

8 0
3 years ago
Identify the machines in which both a lever and a wedge are used
disa [49]

the see-saw, and the catapult.

7 0
3 years ago
Read 2 more answers
Explain the motion of a ball bearing falling through a viscous liquid​
skad [1K]

Answer:

its acceleration decrease because of the force acted upon by the viscous liquid

8 0
3 years ago
Other questions:
  • An object has a mass of 50.0 g and a volume of 10.5 cm3. What is the object's density?
    14·1 answer
  • What will happen to a periodic wave acted upon an external damping force?
    5·2 answers
  • Phase change requires...
    7·1 answer
  • A missile is moving 1350 m/s at a 25° angle it needs to hit a target 23,500 m away in a 55° direction in 10.2 seconds what is th
    14·1 answer
  • A rotating merry go-round makes one complete revolution in 4.2 s. (a) what is the linear speed of a child seated 1.3 m from the
    9·2 answers
  • Displacement is to velocity as _______ is to acceleration
    8·1 answer
  • What is the force required to lift the balloon with
    15·1 answer
  • A 6kg sled sliding on an icy surface experiences a 6-N frictional force exerted by the ice and the air resistive force of 0.6 N.
    14·1 answer
  • How much energy is passed from one trophic level to the next
    15·1 answer
  • From Smallest to Largest <br> Moon<br> asteroid <br> meteorite <br> meteoroid
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!