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labwork [276]
1 year ago
12

Sound that reaches the ears after bouncing off a wall or a floor is called _____.

Physics
2 answers:
andrew11 [14]1 year ago
8 0

Answer:

Indirect sound

BartSMP [9]1 year ago
3 0

Answer:

ecolocation I think but it is not for human ears

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How much gravitational potential energy does a 45.2 kg object have when it is 21.9m above the ground?
Blizzard [7]

Answer:

Explanation:

The formula for gravitational potential energy is

Ep = m · g · h   Assuming that the acceleration is g = 10m/s²

Ep = 45.4 · 10 · 21.9 = 9,942.6 J

God is with you!!!

6 0
3 years ago
A spring gun consists of a spring inside a plastic tube with spring constant, k. The spring can be compressed 20 cm from its equ
emmainna [20.7K]

Answer: The spring constant is K=392.4N/m

Explanation:

According to hook's law the applied force F will be directly proportional to the extension e produced provided the spring is not distorted

The force F=ke

Where k=spring constant

e= Extention produced

h=2m

Given that

e=20cm to meter 20/100= 0.2m

m=100g to kg m=100/1000= 0.1kg

But F=mg

Ignoring air resistance

assuming g=9.81m/s²

Since the compression causes the plastic ball to poses potential energy hence energy stored in the spring

E=1/2ke²=mgh

Substituting our values to find k

First we make k subject of formula

k=2mgh/e²

k=2*0.1*9.81*2/0.1²

K=3.921/0.01

K=392.4N/m

5 0
3 years ago
What is the mass of something that weighs 300 N on earth
jeka57 [31]

Answer:

30.5810 kg

Explanation:

6 0
2 years ago
"I could feel his anguish" what could be the anguish​
sergey [27]

Answer:

yeah

Explanation:

the answer is right.

3 0
3 years ago
If you have a pet that isn't getting nourishment from the food it eats, which organ might
tatuchka [14]
An organ I think that will have the problem is probably the kidney in an animal ! I tried my best
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3 years ago
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