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Vadim26 [7]
2 years ago
7

How can you increase efficiency of a simple machine??​

Physics
1 answer:
Blizzard [7]2 years ago
5 0

Answer:

Efficiency can be increase by using rollers in conjunction with the inclined plane. Wedge. The wedge is an adaptation of the inclined plane. It can be used to raise a heavy load over a short distance or to split a log.

Explanation:

Hope it helps

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If the strings have the same thickness butdifferent lengths, which of the following parameters, if any, willbe different in the
gizmo_the_mogwai [7]

Answer:

1.Length is one of the four factors on which the wave frequency depends. So if the length of the string changes then there will be a change in the vibration of string. So in this case if the lengths are different then the wave frequency of both will be different.

2. Wave speed will be the same as it depends on tension and linear density of it.

3.  Wavelength itself is find out by the length of string so it depends on length and it will vary with the lengths of strings.

Explanation:

7 0
3 years ago
The energy difference in these two conformations has been measured to be about 23 kj per mole. how much of this energy differenc
Phantasy [73]

Answer:

The answer is 7.8 kJ / mol.

Explanation:

Energy = (number of methyl group) (Gauche interactions)(3.8kJ/mol per interaction)

           = (2)(2)(3.8 kJ / mol)

            = 15.2 kJ / mol.

The energy  = (number of methyl group) - ( energy of gauche interactions)

                    = (23 kJ/mol) - 15.2 kJ/mol

                    = 7.8 kJ / mol.

8 0
3 years ago
A 24 kg child descends a 5.0 m high slide and reaches the ground with a speed of 2.8 m/s. What is the mass of the child?
laila [671]
The mass of the child in this problem is 24 Kg, the unit for mass is in Kilogram.
The mass will change only if it travels close to the speed of light.
7 0
3 years ago
Please help! Two speakers are spaced 15 m apart and are both producing an identical sound wave. You are standing at a spot as pi
bonufazy [111]

Answer:

213.04 Hz

Explanation:

6 0
3 years ago
Read 2 more answers
Which one of the following is radical?<br>a.NH4+<br>b.CUSO4<br>c.CH4<br>d.NH3​
klio [65]

Answer:

The unit that is a radical among the options is;

a. NH₄⁺

Explanation:

A radical is an atom, group of atoms molecule or ion that contains an electron that is unpaired. The presence of the unpaired electrons make radical very reactive as such most radicals enter into reactions with other species or with themselves to form new compounds making them not last long.

Radicals are also known as free radicals. Examples of radicals includes; Ammonium ion, NH₄⁺

Nitrate ion NO₃⁻ (From a salt)

Hydroxide ion OH⁻ (From a base)

Sulphate ion SO₄²⁺ (From an acid)

All of which are formed in aqueous solution of acids, salts and bases.

5 0
3 years ago
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