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
lesya [120]
2 years ago
11

What is the momentum of a 8 kilogram cart moving with a speed of 12 meters per second?

Physics
1 answer:
lisov135 [29]2 years ago
5 0

Answer:

Explanation:

momentum = mv

m = 8 kg

v = 12 m/s

momentum = 8 * 12 = 96 kg m/s

You might be interested in
Two metal plates 4 cm long are held horizontally 3 cm apart in a vacuum, one being vertically above other. The upper plate is at
kati45 [8]

Answer:

the answer to your question is 4 cm long

Explanation:

5 0
2 years ago
An ice skater of mass m = 60 kg coasts at a speed of v = 0.8 m/s past a pole. At the distance of closest approach, her center of
IrinaVladis [17]

Answer:

1.78 rad/s

1.70344 rad/s

Explanation:

v = Velocity = 0.8 m/s

m = Mass of person = 60 kg

r_1 = Distance between center of mass of person and pole = 0.45 m

r_2 = New distance between center of mass of person and pole = 0.46 m

I = Moment of inertia

Angular speed is given by

\omega_1=\dfrac{v}{r_1}\\\Rightarrow \omega_1=\dfrac{0.8}{0.45}\\\Rightarrow \omega_1=1.78\ rad/s

The angular speed is 1.78 rad/s

In this system the angular momentum is conserved

L_1=L_2\\\Rightarrow I_1\omega_1=I_2\omega_2\\\Rightarrow mr_1^2\omega_1=mr_2^2\omega_2\\\Rightarrow \omega_2=\dfrac{r_1^2\omega_1}{r_2^2}\\\Rightarrow \omega_2=\dfrac{0.45^2\times 1.78}{0.46^2}\\\Rightarrow \omega_2=1.70344\ rad/s

The new angular speed is 1.70344 rad/s

7 0
2 years ago
A 20 N unbalanced force causes an object to accelerate at 1.5 m/s2. What is the mass of the object?
Ket [755]

<u>Answer:</u>

Force = 20N

acceleration (a) = 1.5 m/s²

Mass of object (m) = ?

<u>From Newtons II law</u>

                   <em>    F = m. a N</em>

                        m =  F/a

                        m = 20/1.5

                      <em>  m = 13.34 Kg</em>

<em>Mass of an object is 13.34 Kg</em>

8 0
3 years ago
Jim thinks that he can throw a baseball six meters per second. What does the six meters refer to?
SVETLANKA909090 [29]

Answer:

Six meters refers to the distance the baseball travels in one second.

Explanation:

6 m/s means that every second, the baseball travels 6m. So, 6 meters is the distance traveled in one second.

3 0
2 years ago
Read 2 more answers
Carbonic acid _____.
artcher [175]
Dissolves limestone and other rocks.

3 0
2 years ago
Read 2 more answers
Other questions:
  • A film of oil that has an index of refraction of 1.45 rests on an optically flat piece of glass of index of refraction n = 1.60.
    8·1 answer
  • Problem 2: A rock is dropped from a cliff. If it falls for 10 seconds, what is its displacement?​
    7·1 answer
  • Use the following terms in the same sentence: proton, neutron, and isotope.
    6·1 answer
  • Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. He t
    7·2 answers
  • ¿Cuál es el rango de frecuencias comprendido entre las longitudes de onda de 220 nm, 350 nm,
    14·1 answer
  • The human body uses water in many of its natural processes. water is made of two hydrogen atoms bonded to an oxygen atom. what a
    13·1 answer
  • If a small-diameter open glass tube is partially immersed in a vessel containing mercury, the surface of the mercury inside the
    10·2 answers
  • Describe the acceleration of the cart shown. Assume there is no friction.
    7·2 answers
  • 7) Se calcula dividiendo distancia entre tiempo
    12·1 answer
  • ¿Qué diferencia una magnitud fundamental de una derivada?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!