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d1i1m1o1n [39]
3 years ago
11

Someone please help me

Physics
1 answer:
lesya692 [45]3 years ago
7 0
The First one! A.. Water freezes at 0 and boils mostly at 100 or more
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In dwelling unit basements, at least ______ receptacle outlet(s) must be installed in addition to the laundry outlet
Rzqust [24]

In dwelling unit basements, at least one receptacle outlet must be installed in addition to the laundry outlet.

What determines the minimum number of receptacles in a given dwelling?

The amount of wall space determines the minimum number of receptacle outlets in a given dwelling. Wall space is measured horizontally along the floor line. Although the Code spells out requirements for the minimum number of receptacles in a dwelling, it does not limit the number of receptacle outlets.

The receptacle definition of electrical receptacles are types of sockets or outlets that provide a location in a system where the wire can be inserted to provide electrical current.

What is the receptacle used for?

Electrical outlets, also known as receptacles, are sockets that are used to establish an electrical connection between an electronic device and power supply.

To learn more about receptacle outlet here

brainly.com/question/20463369

#SPJ4

8 0
2 years ago
What is the relationship between SI units and CGS unit of work ?
VashaNatasha [74]
Work SI unit = joule = N*m= [kg]*[m/s^2] *[m] = kg * m^2/s^2

Work cgs unit = erg =  [g][cm/s^2][cm] = g*cm^2 / s^2

Then 1 kg * m^2 / s^2 * [1000 g/kg] * [100cm/m]^2 = 10,000,000 g*cm^2/s^2

The relation is 1 joule = 10,000,000 erg or 1 erg = 10^-7 joule
8 0
4 years ago
A 0.5 m diameter wagon wheel consists of a thin rim having a mass of 7 kg and six spokes, each with a mass of 1.2 kg. 1.2 kg 7 k
Arte-miy333 [17]

Explanation:

It is given that,

Mass of the rim of wheel, m₁ = 7 kg

Mass of one spoke, m₂ = 1.2 kg

Diameter of the wagon, d = 0.5 m

Radius of the wagon, r = 0.25 m

Let I is the the moment of inertia of the wagon wheel for rotation about its axis.

We know that the moment of inertia of the ring is given by :

I_1=m_1r^2

I_1=7\times (0.25)^2=0.437\ kgm^2

The moment of inertia of the rod about one end is given by :

I_2=\dfrac{m_2l^2}{3}

l = r

I_2=\dfrac{m_2r^2}{3}

I_2=\dfrac{1.2\times (0.25)^2}{3}=0.025\ kgm^2

For 6 spokes, I_2=0.025\times 6=0.15\ kgm^2

So, the net moment of inertia of the wagon is :

I=I_1+I_2

I=0.437+0.15=0.587\ kgm^2

So, the moment of inertia of the wagon wheel for rotation about its axis is 0.587\ kgm^2. Hence, this is the required solution.

4 0
4 years ago
according to newton's law of universal gravitation, in which of the following situations does the gravitational attraction betwe
Alex17521 [72]

Explanation:

The force acting between two masses is given by :

F=G\dfrac{m_1m_2}{d^2}........(1)

Where

G is the universal gravitational constant

m_1\ and\ m_2 are masses

d is the distance between two masses

It is clear from equation (1) that the gravitational attraction between the bodies always increases if the masses of bodies increases and when the separation between masses decreases.

So, the correct answer is "the masses increase, and the distance between the centers of mass decreases". This is because the force of gravitation is directly proportional to the masses and inversely proportional to the separation.

4 0
3 years ago
A relief plane flying horizontally at 65.0 m/s is delivering a
SVETLANKA909090 [29]

The height of the plane delivering a food package to people stranded on an island is 722.2 m.

<h3>Time of motion of the food package</h3>

The time taken for the food package to hit the ground level is calculated as follows;

X = vt

where;

  • X is horizontal distance traveled by the food package
  • v is horizontal distance
  • t is time of motion

t = X/v

t = 789/65

t = 12.14 seconds

<h3>Height of the plane</h3>

h = ¹/₂gt²

where;

  • h is height of fall of the food package which is height of the plane
  • t is time of motion of food package
  • g is acceleration due to gravity

h = (0.5)(9.8)(12.14²)

h = 722.2 m

Thus, the height of the plane delivering a food package to people stranded on an island is 722.2 m.

Learn more about height here: brainly.com/question/1739912

#SPJ1

5 0
2 years ago
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