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
Alexeev081 [22]
2 years ago
9

Date: 12-3-21 4. The momentum of a 5-kilogram object moving at 6 meters per second is

Physics
2 answers:
Dafna11 [192]2 years ago
6 0
30 kg•m/s

p = mv
p = 5kg • 6m/s
p = 30 kg•m/s
ASHA 777 [7]2 years ago
5 0

Answer

30 kg . m/sec

Explanation:

mark me as brainliest!

You might be interested in
Air contained in a rigid, insulated tank fitted with a paddle wheel, initially at 300 K, 2 bar, and a volume of 3 m3, is stirred
madam [21]

Answer:

a)P₂ =4 bar

b)W= - 1482.48 KJ

It means that work done on the system.

c)S₂ - S₁ = 3.42 KJ/K

Explanation:

Given that

T₁ = 300 K   ,V₁ = 3 m³  ,P₁=2 bar

T₂ = 600 K ,V₂=V₁ 3 m³

Given that tank is rigid and insulated.It means that volume of the gas will remain constant.

Lets take the final pressure = P₂

For ideal gas  P V = m R T

\dfrac{P_2}{P_1}=\dfrac{T_2}{T_1}

P_2=\dfrac{T_2}{T_1}\times P_1

P_2=\dfrac{600}{300}\times 2

P₂ =4 bar

Internal energy

ΔU = m Cv ΔT

Cv=0.71 KJ/kg.k for air

m=\dfrac{PV}{RT}

m=\dfrac{200\times 3}{0.287\times 300}\ kg

m= 6.96 kg

ΔU= 6.96 x 0.71 x (600 - 300)

ΔU=1482.48 KJ

From first law

Q= ΔU + W

Q= 0  Insulated

W = - ΔU

W= - 1482.48 KJ

It means that work done on the system.

Change in the entropy

S_2-S_1=mC_v\ \ln\dfrac{T_2}{T_1}

S_2-S_1=6.96\times 0.71\ \ln\dfrac{600}{300}

S₂ - S₁ = 3.42 KJ/K

 

5 0
3 years ago
According to newtos first law of motion. what is required to make a object slow down.
ladessa [460]

Answer:

Friction

Explanation:

Friction is a force that slows down moving objects. If you roll a ball across a shaggy rug, you can see that there are lumps and bumps in the rug that make the ball slow down. The rubbing, or friction, between the ball and the rug is what makes the ball stop rolling. External Force is required.

5 0
3 years ago
Gas a bG1 5.22 0.0289G2 1.05 0.0388G3 2.31 0.0467G4 4.05 0.0310Based on the given van der Waals constants for four hypothetical
inysia [295]

Answer:

Gas 2, Gas 3, Gas 4, Gas 5 is the order of decreasing strength of inter-molecular forces.

Explanation:

The strength increases as there is a decrease in the vanderwaals constant and vice versa.

3 0
3 years ago
calculate the weight of an object of mass 100kg on the surface of a planet whose mass is 4.8×10^24 kg and diameter is 12000km.​
notsponge [240]

Answer:

p= mv

where p is momentum

m is mass

v is velocity

so it's given p= 100kgm/sec

v= 4m/s

so putting in the formula

100= m × 4

m = 25kg

Explanation:

3 0
3 years ago
Which of the following is a mixture?<br> a air<br> biron<br> Chydrogen<br> d nickel
Korolek [52]
The answer is Chydrogen
5 0
3 years ago
Other questions:
  • Two blocks of masses mA and mB are connected by a massless spring. The blocks are moved apart, stretching the spring, and subseq
    10·1 answer
  • What is the possible consequence of the following scenario? Because of high unemployment rates in the country of Lavernia, emplo
    7·1 answer
  • When two or more atoms combine into a chemical compound, the force of attraction holding the atoms together is known as a ...
    5·1 answer
  • 3. What are the challenges of looking for Dyson spheres?
    9·2 answers
  • At what frequency would the wavelength of sound in air be equal to the mean free path of oxygen molecules at 1.5 atm pressure an
    14·1 answer
  • One astronomer has observed an apparent lengthening of the electromagnetic waves given off by a star. Which of these conclusions
    9·2 answers
  • A segment of wire carries a current of 25 A along the x axis from x = −2.0 m to x = 0 and then along the y axis from y = 0 to y
    13·1 answer
  • Hey, can a physics major help me?
    6·2 answers
  • PLEASE HELP
    14·2 answers
  • Which FBD would represent a car moving right with a motor force of 250 N, and force of friction of 750N, a weight of 8500N and a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!