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
GuDViN [60]
3 years ago
8

Plssss help I need good grade!!!! Plssss and thank u

Physics
2 answers:
shepuryov [24]3 years ago
8 0

Answer:

the answer is 'b'

According to me

Tatiana [17]3 years ago
8 0

Answer:

B

Explanation:

It has more negative signs than positive signs

You might be interested in
What happens to the object when positive velocity and positive acceleration occur?
erik [133]
The object increases in speed
7 0
3 years ago
How did Linnaeus improve the classification of organisms
mamaluj [8]

Answer: A

Reason: one of his contributions was the development of a hierarchical system of classification of nature. Linnaeus also provided us with a consistent way to name species called binomial nomenclature. (From Internet)

6 0
3 years ago
Read 2 more answers
Hai xe chuyển động trên cùng một đoạn đường , khi xe (1) ở A thì xe (2) ở B phía trước với AB=5km . Xe (1) đuổi theo xe (2) . Tạ
12345 [234]

Answer:

b

Explanation:

because it shows you it

4 0
3 years ago
A firecracker sitting on the ground explodes into two pieces. Immediately after the explosion, one of the pieces has momentum of
Misha Larkins [42]

Answer:

other part will move with momentum 0.5 kg m/s towards west

Explanation:

As we know that the during the explosion event the time interval is very small and there is no impulsive force on the firecracker during this time

so here we can say that the momentum will remains conserved during the this event

now if the initial momentum of the firecracker is zero

then the final momentum must be zero

so here we can say

P_1 + P_2 = 0

P_1 = 0.5 kg m/s towards east

now from above equation

P_2 = - P_1 = -0.5 kg m/s

so the other part will move with momentum 0.5 kg m/s towards west

6 0
4 years ago
Three bulbs are connected by tubing, and the tubing is evacuated. The volume of the tubing is 45.0 mL. The first bulb has a volu
kipiarov [429]

Answer:

The final pressure of the whole system is 34.80 atm.

Explanation:

Given that,

Volume = 45.0 ml

Volume of first bulb = 77.0 mL

Pressure  = 8.89 atm

Volume of second  bulb = 250 mL

Pressure = 2.82 atm

Volume of third  bulb = 21.0 mL

Pressure = 8.42 atm

We need to calculate the final pressure of the whole system

Using formula of pressure

P_{1}V_{1}+P_{2}V_{2}+P_{3}V_{3}+P_{t}V_{t}=P_{f}V_{f}

Where, P_{1}= pressure of first bulb

P_{2}= pressure of second bulb

P_{3}= pressure of third bulb

P_{4}= initial pressure of tube

V_{1}= Volume of first bulb

V_{2}=Volume of second bulb

V_{3}= Volume of third bulb

V_{4}= Initial volume of tube

Put the value into the formula

8.89\times77.0+250\times2.82+21.0\times8.42+0=P_{f}\times45

P_{f}=\dfrac{1566.35}{45}

P_{f}=34.80\ atm

Hence, The final pressure of the whole system is 34.80 atm.

4 0
3 years ago
Other questions:
  • All systems have what
    6·1 answer
  • A hungry 177 kg lion running northward at 81.8 km/hr attacks and holds onto a 32.0 kg Thomson's gazelle running eastward at 59.0
    11·1 answer
  • All matter is made up of________ called atoms or molecules
    12·2 answers
  • A ball with a mass of 0.15 kg rolling at 2.7 m/s rolls down into a ditch that is 2.2 m deep. Assuming a complete transformation
    5·1 answer
  • When a sound from a source is refracted away from the surface of the earth, it gives an indication that the
    14·2 answers
  • What is 12 and 1 half % expressed as a fraction
    8·2 answers
  • An atom with two protons, three neutrons and two electrons would have a mass of about how many atomic mass units?
    14·1 answer
  • The period of a pendulum is directly proportional to the mass of the bob. <br><br> true or false.
    10·1 answer
  • Please answer it due to night you!!!!!<br><br>You will be a the brainlist ​
    6·1 answer
  • As your roller coaster climbs to the top of the steepest hill on its track, when does the first car
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!