Suspensions are a homogeneous mix True False

Physics

2 answers:

meriva2 years ago

5 0

Answer:

False

Explanation:

Suspensions are not a homogeneous mix as the particles do not dissolve into the liquid as they are solids.

to give you an idea the definition of homogeneous is 'denoting a process involving substances in the same phase (solid, liquid, or gaseous).' and since suspension is a solid within a liquid it is not homogeneous

nirvana33 [79]2 years ago

4 0

Answer:

FALSE

Explanation:

Suspensions are heterogeneous mixtures from which some of the particles settle with time.

You might be interested in

An object’s motion remains constant when acted upon by what?

igomit [66]

Answer:

An outside force

Explanation:

Newton's law an object in motion stays in motion an object at rest stays at rest unless acted on by an outside force.

6 0

2 years ago

If 2000 kg cannon fires 2 kg projectile having muzzle velocity 200 m/s then the KINETIC ENERGY of the CANNON will be ("E4" means

lilavasa [31]

Answer:

M V = m v conservation of momentum (Caps-cannon Small-projectile)

V = m / M * V = 2 / 2000 * 200 m/s = .2 m/s recoil velocity of cannon

KE = 1/2 M V^2 = 2000 / 2 kg * (.2 m/s)^2 = 40 kg m^2/s^2 = 40 J

6 0

3 years ago

Read 2 more answers

An ice skater has a moment of inertia of 5.0 kgm2 when her arms are outstretched. at this time she is spinning at 3.0 revolution

givi [52]

With arms outstretched,
Moment of inertia is I = 5.0 kg-m².
Rotational speed is ω = (3 rev/s)*(2π rad/rev) = 6π rad/s
The torque required is
T = Iω = (5.0 kg-m²)*(6π rad/s) = 30π

Assume that the same torque drives the rotational motion at a moment of inertia of 2.0 kg-m².
If u = new rotational speed (rad/s), then
T = 2u = 30π
u = 15π rad/s
= (15π rad/s)*(1 rev/2π rad)
= 7.5 rev/s

Answer: 7.5 revolutions per second.

7 0

3 years ago

Which force requires contact?

Minchanka [31]

Answer:

Explanation: A is a example of Air resistance force, which is a contact force.

8 0

3 years ago

Read 2 more answers

Convert 2 days into second

eduard

Answer: