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kolbaska11 [484]
3 years ago
8

A spherical ball is dropped through a liquid, explain why it reaches terminal velocity.

Physics
1 answer:
Alekssandra [29.7K]3 years ago
8 0

Probably because of the drag coefficient and the density of the liquid.

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A police officer is using her radar to check speeds. She is moving south at 50 mph. You are moving
Luda [366]

Answer:

the relative speed should be 40mph

Explanation:

8 0
3 years ago
The plank is 5.1 meters long and has a mass of 9.2 kg, ack has a mass of 93.6 kg, and Diane has a mass of 64.2 kg. Assuming Dian
kodGreya [7K]

Answer:

The answer is 0.8 m

Explanation:

According the attached diagram, if we take the momentum in the point 0:

\frac{m_{D}*5.1 }{2} =m_{J} *X

Where

mD = mass of Diane = 64.2 kg

mJ = mass of Jack = 93.6 kg

Replacing:

X=\frac{\frac{64.2*5.1}{2} }{93.6} =1.75m

\frac{L}{2} -X=Y=\frac{5.1}{2} -1.75\\Y=0.8m

8 0
3 years ago
Help me with this please​
Marianna [84]

Answer:

<u>Family</u>

1. Definition of a family

A family is a group of people living together in a home related by blood, marriage or adoption.

2. Two function of the family are;

  1. socialization for the children in the family.
  2. love and happiness should be in a family for it to be function.

3. Two types of family are;

  1. Single parent family- this family includes one parent and his or her child, we can say it's an incomplete family.
  2. nuclear family- this family includes the two parents and their children or child, this family is known as the complete family.

4. Two roles and responsibilities of the parents and children in the home are;

  1. both parents must and should protect their child or children from harm.
  2. the children must have respect for the family.

<u>Accident in the Home</u>

1. Definition of accident in the home

accidents in the home are common to persons of all ages, therefore home accidents occurs in one's home that may cause an result an injury of a person

2. Two types of accident in the home

  1. falls
  2. minor cuts and wounds

3. The two uses of cereals in cooking

Cereals in cooking are used as thickened agents.

4. complete table

1. minor cuts and wounds

  • Causes: these are caused by broken glasses, contact with sharp instruments such as knife, pins and needles.
  • Prevention: this can be prevented by keeping the Sharp tools in safe places after used

2. Poisoning

  • Causes: poisoning can caused by in a result from children taking tablets for sweets, which can lead to death.
  • preventions: you can prevent this by avoiding poisoning from the from the home or you could put it at a safe place that you know the child cannot get it.

<u>Care labels</u>

1. definition of care label

care labels can be defined as a permanent label or we can say a tag, which contains regular instructions that is attached at the back of a cloth.

3. two classification of carbohydrates

  1. Mono
  2. poly

6 0
3 years ago
How does the frequency of infrared electromagnetic waves compare with the frequency of radio and microwaves?
iVinArrow [24]

Answer:

Answer is B.

Because the wavelength of infrared is shorter than microwave radiation

8 0
3 years ago
What is the force on a box that is being pushed to the right with 50n of force while, at the same time, being pushed to the left
elena-s [515]
I think the question meant to say net force on the box. Since force is a vector, the direction matters. 20N left is negated completely by the 50N right, which means the net force is 50N-20N to the right, 30N. 
7 0
3 years ago
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