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
Answer:
the density of mobile electrons in the material is 3.4716 × 10²⁵ m⁻³
Explanation:
Given the data in the question;
we make use of the following expression;
hall Voltage VH = IB / ned
where I = 2.25 A
B = 0.685 T
d = 0.107 mm = 0.107 × 10⁻³ m
e = 1.602×10⁻¹⁹ C
VH = 2.59 mV = 2.59 × 10⁻³ volt
n is the electron density
so from the form; VH = IB / ned
VHned = IB
n = IB / VHed
so we substitute
n = (2.25 × 0.685) / ( 2.59 × 10⁻³ × 1.602×10⁻¹⁹ × 0.107 × 10⁻³ )
n = 1.54125 / 4.4396226 × 10⁻²⁶
n = 3.4716 × 10²⁵ m⁻³
Therefore, the density of mobile electrons in the material is 3.4716 × 10²⁵ m⁻³
Answer:
Los objetos A y C tienen cargas del mismo signo (opcion a)
Explanation:
Hay dos tipos de cargas
: cargas positivas y cargas negativas.
La Ley de Coulomb dice que la fuerza electrostática entre dos cargas puntuales es proporcional al producto de las cargas e inversamente proporcional al cuadrado de la distancia que las separa, y tiene la dirección de la línea que las une y se cumple que:
- La fuerza ejercida sobre una carga apunta hacia la otra cuando las dos tienen distinto signo (fuerza atractiva).
- El sentido de la fuerza se dirige hacia el lado opuesto de la carga cuando ambas tienen el mismo signo (fuerza repulsiva).
Es decir que las cargas de igual signo se repelen, mientras que las de diferente signo se atraen.
Entonces, si se juntan los objetos A y B y se repelen significa que la carga es del mismo signo.
Cuando se acercan los objetos B y C, se repelen. Entonces significa que posee carga de igual signo.
Por lo que podes concluir que <u><em>los objetos A y C tienen cargas del mismo signo (opcion a)</em></u>
Answer:
a = 1.5*10^-3 m/s^2
x = 0.033m = 3.3cm
Explanation:
To calculate the acceleration and the distance traveled by the car you use the following formulas:
(1)
(2)
v: final velocity = 0,255 km/h
vo: initial velocity = 0 m/s
t: time = 3/4 min
a: acceleration = ?
x: distance
In order to use the equations (1) and (2) you first convert the units of the final velocity to m/s, and the time to seconds.
Next, you solve the equation (1) for the acceleration a:
With this value of a you can calculate the distance traveled by the car, by using the equation (2):
hence, the acceleration of the car is 1.5*10^-3 m/s^2 and the distance traveled in 3/4 min is 0.033m
