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Artyom0805 [142]
3 years ago
12

Please help me I have been struggling

Physics
1 answer:
disa [49]3 years ago
4 0
  1. High/low notes have high/low frequency, not high/low amplitude.
  2. Heartz measures the number of waves per second, not per hour.
  3. Sounds do not travel in space because it's empty
  4. Sounds make our eardrum vibrate. The diaphragm is the muscle we use to breathe.
  5. Soft, pale materials are best for sound proofing because they absorb the waves.
  6. In the next paragraph, ultrasound and infrasound are inverted (ultra means "over, above" and infra means "below").
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A capacitor with plates separated by distance d is charged to a potential difference ΔVC. All wires and batteries are disconnect
fgiga [73]

Answer:

Yes, the capacitor's Q load varies inversely proportional to the distance between plates.

Explanation:

In the attached files you see the inverse relationship between capacity and distance between plates "d".

In the following formula we see its relationship with the "Q" load

5 0
3 years ago
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A piece of iron block moves across a rough horizontal surface before coming to rest. The mass of the block is 1.3 kg, and its in
KengaRu [80]

Answer:

0.0126°C

Explanation:

Kinetic energy sustain by the block,K.E = 1/2× mass×velocity^2

K.E = 1/2 ×1.3×(4^2)

=1/2 × 1.3× 16 = 1.3 ×8 = 10.4J

The internal energy is 71% of kinetic energy is;

U= 71/100 × 10.4 = 7.38J

But U = m × C × ∆T

Where U is internal energy

m is the mass of iron

C is the heat capacity of iron

∆T is the temperature change

By make ∆T the subject of the formula we have

∆T=U/ m×C

=7.38/ 1.3×452= 0.0126°C

6 0
3 years ago
What is the definition of the product of force and distance applied to an force
amid [387]

Answer:

that is the definition of work

Explanation:

3 0
2 years ago
1. In cognitive therapy, a therapist pays attention to the patient’s perception,___,reason, attention, and judgment.
barxatty [35]
Try choosing the word Judgement for your answer, a therapist pays attention to the patient's perception, and judgment.
3 0
2 years ago
a boat is headed with a velocity of 18 meters/second toward the west with respect to the water in a river. if the river is flowi
irinina [24]
Both the boat and swimmer are going in the same direction, west.
The net velocity the boat is traveling is then:
18 m/s + 2.5 m/s = 20.5 m/s

The magnitude is the hypotenuse of the components but there is only an x component so magnitude = 20.5 m/s
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2 years ago
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