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FinnZ [79.3K]
4 years ago
15

A physical science test book has a mass of 2.2kg. . What is the weight on the earth

Physics
2 answers:
dem82 [27]4 years ago
8 0
Weight = mg,          g ≈ 9.8 m/s²

Weight = 2.2 * 9.8 ≈ 21.56 N
Ilia_Sergeevich [38]4 years ago
5 0
The weight of an object is the product of its weight in kg and the acceleration due to gravity in m/s². In Earth, the acceleration due to gravity is equal to 9.81 m/s². The product of 2.2 kg and 9.8 m/s² is equal to 21.56 kg m/s² or 21.56 N. 
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A substance is round in one container and has a volume of one liter. In a much larger container, the substance is rectangular bu
insens350 [35]

Answer:

Liquid

Explanation:

Solids do not change shape, so we know it's not a solid.

Gases take the shape of their container, but they also expand to the volume of the container.  The substance in this problem has the same volume in different size containers, so we know it's not a gas.

The substance must be a liquid.  It takes the shape of its container but has a constant volume.

8 0
3 years ago
The passing of heat through a material while the material itself stays in place.
Veronika [31]
The passing of heat through a material while the material itself stays in place is conduction.
4 0
4 years ago
2.10-kg box is moving to the right with speed 8.50 m>s on a horizontal, frictionless surface. At t = 0 a horizontal force is
larisa86 [58]

Explanation:

Below is an attachment containing the solution.

8 0
3 years ago
Read 2 more answers
At a time when mining asteroids has become feasible, astronauts have connected a line between their 3740-kg space tug and a 5690
Gwar [14]

Answer:

61.4 s

Explanation:

The distance d₁ traveled by the asteroid:

d_1=\frac{1}{2}a_1t^2

The distance d₂ traveled by the space ship:

d_2=\frac{1}{2}a_2t^2

The total distance d:

d=d_1+d_2=\frac{1}{2}(a_1+a_2)t^2

Solving for time t:

t=\sqrt{\frac{2d}{a_1+a_2}}=\sqrt{\frac{2d}{F(\frac{1}{m_1}+\frac{1}{m_2})}}=\sqrt{\frac{2dm_1m_2}{F(m_1+m_2)}}

3 0
3 years ago
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Conductors, type SIS, for switchboard wiring, have a maximum operating temperature of: _______
Sati [7]

Conductors, type SIS, for switchboard wiring, have a maximum operating temperature of: 194 degree Fahrenheit.

<u>Explanation:</u>

A Panelboard or Switchboard wire is known as SIS.This type of SIS, have tin coating and it is manufactured with a copper conductor insulation.  It is helpful for facilitating solder and also it will be easy to fix them in tighter spaces because for their flexible nature.

As they are insulated with XLPE  they can be used at a voltage operating at 600 V and can be used at a temperature of 194 degree Fahrenheit or 90 degree Celsius. of The XLPE(Cross-Linked Polyethylene) insulation is rated for use at 90°C in either wet or dry locations at an operating voltage of 600 V. They can be used for distribution, panel and switch board wiring.

5 0
3 years ago
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