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Phantasy [73]
2 years ago
10

Witch part of the ear is responsible for sending singnals about sound to the brain

Physics
1 answer:
drek231 [11]2 years ago
7 0

Answer:

Cochlea

Explanation:

Cochlea. The cochlea changes the sound vibrations from the middle ear into nerve signals. The nerve signals the travel to the brain via the cochlea \ nerve.

The cochlea nerve is also called the auditory nerve.

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Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. When the carts collide, they
Svetradugi [14.3K]

Answer: Graph C is the correct option

Explanation:

The question is incomplete, please remember to submit the whole question :)

However, the rest of the question with its corresponding figures is below:

Assume that positive momentum is to the right, which of the following best represents the momentum of the cart of mass m as a function of time before and after the collision?

The initial momentum p_{o} of the cart with mass m (before the collision) is:

p_{o}=-mV (1) Note the negative sign indicates the direction of cart's velocity (to the left, as seen in the first image attached)

On the other hand, the final momentum p_{f} of both carts (after the inelastic collision) is:

p_{f}=(2m+m) V_{f}=3m V_{f} (2)

So, according to this, the correct graph tha best represents the situation is C. Since before the collision the momentum is negative, then both carts slow down after the collision (V_{f}), and taking into account the linear momentum is directly proportional to the velocity p_{f} (although is in the positive direction) is less than p_{o}.

6 0
3 years ago
How much energy (in kW-h) does a 900 Watt stove use in a week if it is used for 1.5 hours each day?
ioda

Answer:

9.45 kWh

Explanation:

Energy = Power × time

E = 900 W × (1.5 h/day × 7 day)

E = 9450 Wh

E = 9.45 kWh

3 0
3 years ago
Which of the following stages follows a protostar?
goldfiish [28.3K]
The answer is a White Dwarf.
4 0
3 years ago
A man holding a rock sits on a sled that is sliding across a frozen lake (negligible friction) with a speed of 0.480 m/s. The to
SpyIntel [72]
This is a problem of conservation of momentum

Momentum before throwing the rock: m*V = 96.0 kg * 0.480 m/s = 46.08 N*s

A) man throws the rock forward

=>

rock:
m1 = 0.310 kg
V1 = 14.5 m/s, in the same direction of the sled with the man

sled and man:
m2 = 96 kg - 0.310 kg = 95.69 kg
v2 = ?

Conservation of momentum:
momentum before throw = momentum after throw

46.08N*s = 0.310kg*14.5m/s + 95.69kg*v2

=> v2 = [46.08 N*s - 0.310*14.5N*s ] / 95.69 kg = 0.434 m/s

B) man throws the rock backward

this changes the sign of the velocity, v2 = -14.5 m/s

 46.08N*s = - 0.310kg*14.5m/s + 95.69kg*v2

v2 = [46.08 N*s + 0.310*14.5 N*s] / 95.69 k = 0.529 m/s


3 0
3 years ago
Question 5
Ksenya-84 [330]

Answer:

The force of the nail pushing in the opposite direction

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