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Natasha_Volkova [10]
2 years ago
12

A ball is thrown vertically up from the edge of a cliff with a speed of 8 m/s, how high is

Physics
1 answer:
anygoal [31]2 years ago
7 0

Explanation:

s=d/t

d=s×t

d=8×16.4

d=131.2

distance is 131.2m.

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To calculate the wavelength of a wave, take the wave speed and divide by the frequency of the wave. true or false
Serjik [45]

You said          Wavelength  =  (speed) / (frequency)

Yes, that's a valid equation.
TRUE
4 0
3 years ago
A glass object receives a positive charge of +3 nC by rubbing it with a silk cloth. In the rubbing process have protons been add
AlladinOne [14]

Answer: A glass object receives a positive charge of +3 nC by rubbing it with a silk cloth. In the rubbing process electrons been removed from it.

Explanation:

It is known that for every atom the protons and neutrons reside in the nucleus of the atom. Whereas electrons move outside the nucleus of an atom. As a result, electrons are able to transfer more easily from one substance to another as compared to the protons.

This is because protons are tightly held by the nucleus of an atom. Whereas electrons are mobile in nature and hence, they can easily move.

Therefore, positive charge on the glass develops due to the removal of electrons from it.

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8 0
2 years ago
1. A stone of mass 0.8 kg is attached to a 0.9 m long string. The string will break if the tension exceeds 60 N. The stone is wh
melamori03 [73]

Answer:

1. A. 8.22. m/s

Explanation:

7 0
2 years ago
an athlete whirls a 7.00 kg hammer tied to the end of a 1.3 m chain in a horizontal circle the hammer moves at the rate of 1.0 r
ElenaW [278]

Answer:

The answer to your question is a = 1.3 m/s²

Explanation:

Centripetal acceleration is the motion of a body that transverse a circular path.

Data

mass = 7 kg

radius = r = 1.3 m

angular rate = w = 1.0 rev/s

centripetal acceleration = a = ?

Formula

a = rw²

Substitution

a = (1.3)(1)²

Simplification and result

a = 1.3 m/s²

4 0
3 years ago
Which of the following holds true for volume if the temperature of a given amount of gas increases and pressure remains constant
svlad2 [7]
D. Volume will increase
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7 0
3 years ago
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