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3 years ago

A is the area of a chromosome pair that attaches to a fiber stretching

Physics

1 answer:

chubhunter [2.5K]3 years ago

5 0

The chromosome pair that attaches to fiber stretching is called Centrioles

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A television of mass 15 kg sits on a table. The coefficient of static friction

iris [78.8K]

Answer:

more than 51.45 N

__________________________________________________________

We are given:

Mass of the television = 15 kg

Coefficient of Static friction = 0.35

Minimum force required to move the television:

Normal Force:

We know that the normal force is equal and opposite to the Weight of the television

Weight of the television = Mg

[where m is the mass and g is the acceleration due to gravity]

Weight = 15 * 9.8

Weight = 147 N

Force of Friction:

We are given the coefficient of Friction = 0.35

We know that coefficient of Friction = Force of friction / Normal Force

replacing the variables

0.35 = Force of Friction / 147

Force of Friction = 147 * 0.35 [multiplying both sides by 147]

Force of Friction = 51.45 N

Since a force of 51.45 N is will be applied opposite to the direction of application of Force, the television will only move when we apply more force than 51.45 N

6 0

3 years ago

Read 2 more answers

The 50-mm-diameter cylinder is made from Am 1004-T61 magnesium and is placed in the clamp when the temperature is T1 = 15°C. If

Sergio [31]

Answer:

The temperature of steel first becomes 12 MPa at a temperature of 18.65°C

Explanation:

Given that,

Diameter = 50 mm

Temperature = 15°C

Diameter = 10 mm

Stress = 12 MPa

We need to calculate the temperature of steel

Using formula of stress

$stress=\alpha Y\Delta T$

Where, Y = young modulus

T = temperature

$\alpha$ = coefficient of linear expansion of the material

Put the value into the formula

$12\times10^{6}=17.3\times10^{-6}\times190\times10^{9}\times(T_{2}-15)$

$(T_{2}-15)=\dfrac{12\times10^{6}}{17.3\times10^{-6}\times190\times10^{9}}$

$T_{2}=3.650+15$

$T_{2}=18.65^{\circ}$

We need to calculate the temperature of magnesium

Using formula of stress

$stress=\alpha Y\Delta T$

Put the value into the formula

$12\times10^{6}=25.2\times10^{-6}\times45\times10^{9}\times(T_{2}-15)$

$(T_{2}-15)=\dfrac{12\times10^{6}}{25.2\times10^{-6}\times45\times10^{9}}$

$T_{2}=10.5+15$

$T_{2}=25.58^{\circ}$

Hence, The temperature of steel first becomes 12 MPa at a temperature of 18.65°C

7 0

3 years ago

Which does a reference point provide? Check all that apply.

Alona [7]

A reference point is a point in geometry or general which is used to determine or refer to another point. In reference to this point, measurements can be done. Like, a reference point in space is used to measure distance or displacement to another point. A reference point in time is used to measure the time interval of an event. A reference in space-time can be used to measure the speed or detect object's motion. Hence, the following points apply:

→A position from which to measure future distance

→a set of standard units for measuring displacement

→a method for determining the speed of an object

→a way to detect an object’s motion

A reference point provides a way/method to infer information about the object.

6 0

3 years ago

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How old is the earth? PLEASE HELP ME WITH THIS QUESTION BANANAFANART

scoray [572]

Answer:

The earth is 4 billion years old.