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
Hunter-Best [27]
3 years ago
10

Pls help with this question i’ll give brainliest

Physics
1 answer:
bearhunter [10]3 years ago
6 0

Answer:

5m/s to the right

Explanation:

Momentum = mass * velocity

Momentum before = momentum after

m₁u₁+m₂u₂ = m₁v₁+m₂v₂

3000*10 + 1000*0 = 3000*v₁ + 1000*15

30000-15000=3000v₁

15000=3000v₁

v₁=5m/s to the right (to the right because answer is positive)

You might be interested in
What is the number of the lowest energy level that contains an f sublevel?. . 3. . 4. . 5. . 6
DENIUS [597]
The correct answer among all the other choices is 4. This is the number of the lowest energy level that contains an f sublevel. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help. 
7 0
3 years ago
You are standing a distance of 17.0 meters from the center of a merry-go-round. The merry-go-round takes 9.50 seconds to go comp
GenaCL600 [577]

Answer:

(a)11.24 m/s

(b)7.44 m/s

(c)409 N

(d)539.55\mu

(e) 0

Explanation:

The period for 1 circle 2\pi of the merry go around is 9.5s. It means the angular speed is:

\omega = \theta / t = 2\pi / 9.5 \approx 0.661 rad/s

(a)The speed is

v = \omega * R = 0.661 * 17 = 11.24 m/s

(b) Centripetal acceleration:

a = \frac{v^2}{R} = \frac{11.24^2}{17} = 7.44 m/s^2

(c) Magnitude of the force that keeps you go around at this acceleration

F = ma = 55 * 7.44 = 409 N

(d) let the coefficient of friction by \mu. The frictional force shall be this coefficient multiplied by normal force reverting gravity of the man

F_f = mg\mu = 55*9.81\mu = 539.55\mu

3 0
2 years ago
A 1.00-kg object is attached by a thread of negligible mass, which passes over a pulley of negligible mass, to a 2.00-kg object.
Anna [14]

Answer:

a = 3.27 m/s²

v = 2.56 m/s

Explanation:

given,

mass A = 1 kg

mass B = 2 kg

vertical distance between them = 1 m

F_d = mg

F_d = 2 \times 9.8

F_d = 19.6\ N

F_u = mg

F_u = 1 \times 9.8

F_u = 9.8\ N

F_{net} = 19.6 - 9.8

F_{net}=9.8\ N

F = (m_1+m_2)a

9.8 = (2+1)a

a = 3.27 m/s²

The speed of the system at that moment is:

v² = u² + 2×a×s

v² = 0² + 2× 3.27 × 1

v ² = 6.54

v = 2.56 m/s

3 0
3 years ago
Can i have the physical science grade 12 june 2021 paper (common paper)​
Veseljchak [2.6K]

Answer:

u have to purchase it via online e-commerce platforms

7 0
2 years ago
Read 2 more answers
A solution is oversaturated with solute. which could be done to decrease the oversaturation?
Grace [21]
<span>A solution is oversaturated with solute. The thing that could be done to decrease the oversaturation is to add more solvent in order to decrease the concentration of the solute. You can also increase the temperature to increase solubility of the solute. Hope this answers the question.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • Representar las uniones interatomicas<br> a. kcl<br> b. ZnO<br> c. ZnBr2<br> d. BeI2
    7·1 answer
  • Which of the following has more inertia: (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a five-r
    15·2 answers
  • Which of the following is a unit of volume of solids?
    13·2 answers
  • The fact that the magnetic field generates a force perpendicular to the instantaneous velocity of the particle has implications
    7·1 answer
  • Which of these has the most inertia?
    8·1 answer
  • The coefficent of static friction between the floor of a truck and a box resting on it is 0.28. The truck is traveling at 72.4 k
    15·1 answer
  • Because CMB radiation was _____ throughout the universe, scientists can only relate the source to the big bang.
    8·1 answer
  • What does Charles law state?​
    10·1 answer
  • According to Newton’s law of universal gravitation, which statements are true?
    10·1 answer
  • A standard drink is a unit of measurement. in the united states, a standard drink contains 0.6 fluid ounces of alcohol.which of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!