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2 years ago

Ai. What are ruminants?

Physics

2 answers:

In-s [12.5K]2 years ago

8 0

Ruminants are the mammals that can digest cellulose from plant and chew the cud

aii Cow and goat

bi A force is a push or pull upon an object resulting from the object interaction with another object

bii 1 Changes it's shape or size

2 To start moving

3 To stop moving

4 To accelerate or decelerate

biii Proton neutron and electron

maksim [4K]2 years ago

4 0

Answer:

Same answer please. Hope it helps.

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3 years ago

A sled slides along a horizontal surface on which the coefficient of kinetic friction is 0.25. Its velocity at point A is 8.6 m/

jenyasd209 [6]

Answer:

$\Delta t =1.31\ s$

Explanation:

given,

coefficient of kinetic friction, μ = 0.25

Speed of sled at point A = 8.6 m/s

Speed of sled at point B = 5.4 m/s

time taken to travel from point A to B.

we know,

J = F Δ t

J is the impulse

where F is the frictional force.

t is the time.

we also know that impulse is equal to change in momentum.

$J = m(v_f - v_i)$

frictional force

F = μ N

where as N is the normal force

now,

$F\Delta t = m(v_f -v_i)$

$\mu m g \times \Delta t = m(v_f-v_i)$

$\mu g \times \Delta t = v_f-v_i$

$\Delta t =\dfrac{v_f-v_i}{\mu g}$

$\Delta t =\dfrac{8.6-5.4}{0.25\times 9.8}$

$\Delta t =1.31\ s$

time taken to move from A to B is equal to 1.31 s

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3 years ago

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What is an example of a high amplitude sound, and an example of a low amplitude sound?

Sergeu [11.5K]

High amplitude sound would be music, radio, or earthquakes.
Low amplitude sound would be a breeze or wind.

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2 years ago

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What is the equivalent resistance of the circuit?

Alona [7]

The correct answer is option B. i.e. 60 ohm.
The diagram is attached.

Since all the resistances are attached in series.
Hence, the total resistance will be the sum of all resistances.

R_total = R_1+R_2+ R_3
= 10+20+30
= 60 ohms.

Therefore, option c is correct answer.

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2 years ago

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