Explanation:
studying hard is the only thing that could make the educational system better
Answer:
a) 4.98m/s²
b) 481.66N
Explanation:
a) Using the Newtons second law of motion
m is the mass of the object
g is the acceleration due to gravity
Fm is the moving force acting along the plane
Ff is the frictional force opposing the moving froce
a is the acceleration of the skier
Given
m = 60kg
g = 9.8m/s²
= 35°
Ff = 38.5N
Required
acceleration of the skier a
Substituting into the formula;
Hence the acceleration of the skier is 4.98m/s²
b) The normal force on the skier is expressed as;
N = Wcosθ
N = mgcosθ
N = 60(9.8)cos 35°
N = 588cos 35°
N = 481.66N
Hence the normal force on the skier is 481.66N
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;
- socialization for the children in the family.
- love and happiness should be in a family for it to be function.
3. Two types of family are;
- Single parent family- this family includes one parent and his or her child, we can say it's an incomplete family.
- 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;
- both parents must and should protect their child or children from harm.
- 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
- falls
- 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
- Mono
- poly
If a hummingbirds diet is composed mainly of honeysuckle
nectar, it would require 10g/0.020g * 15 seconds for sugar = 2.08 hours = 124.8 minutes
8g/0.010g * 15 for protein = 3.3 hours = 216 minutes
If a hummingbirds diet is composed mainly of nasturtium nectar,
it would require 10g/0.010g * 20 seconds for sugar = 5.5 hours = 330 minutes
<span>8g/0.010g * 20 for protein = 4.4 hours = 264 minutes</span>
Answer:
69.42 m
Explanation:
From the question given above, the following data were obtained:
Initial velocity (vᵢ ) = 4.9 m/s
Acceleration (a) = 4.2 m/s²
Time (t) = 4.7 s
Displacement (Δx) =?
Thus, we can obtain the displacement by using the following formula:
Δx = vᵢt + ½at²
Δx = (4.9 × 4.7) + (½ × 4.2 × 4.7²)
Δx = 23.03 + (2.1 × 22.09)
Δx = 23.03 + 46.389
Δx = 69.419 ≈ 69.42 m
Thus, the distance travelled is 69.42 m