Answer:
The options are not properly punctuated.
(a) cognitively impaired (b) using holophrases which is developmentally appropriate (c) language-delayed and needs professional assistance (d) trying to manipulate his father and needs to be disciplined
The correct answer is (b) using holophrases which is developmentally appropriate
Explanation:
Holophrases are one of the single-word utterances characteristic of children in the early stages of language acquisition, it is the use of a single word to express a complex idea. Holophrases are normal among toddlers within the age of two years below.
Hence the the use of "cup" by the toddler to express his intent for a cup of milk is referred to as holophrases which is developmentally appropriate
Answer:
Momentum is define as the product of the mass and velocity of a body. It is measured in Kgm/s.
Explanation:
Momentum is the product of mass and velocity of an object. When an object or a body of mass 'm' is moving with velocity 'v', then its momentum can be determined as;
momentum (P) = mass × velocity
i.e P = m × v
= mv
It is measured in Kgm/s.
The change in momentum of a body is referred to as its impulse (Ft).
ΔP = m(v - u) = Ft
Where: P is the momentum of the object, m is its mass, v is its final velocity, u is the initial velocity, F is the force and t is the time in which the force acts.
Answer:
The volume can be calculated once the mass is determined.
Explanation:
Gas is a fluid that can be compressed, therefore knowing the volume of the container is not sufficient reason, to determine the volume. That is why it is important to always know the mass of the gas since the mass can not be destroyed will always be conserved the same. So if we have a gas in a container, and if we know its temperature and pressure, we can determine its specific volume, once this property is determined, we can calculate the volume by knowing the relationship between the specific volume and the mass of the gas.
Answer:
She used thinking pattern
Explanation:
because she just needed to think clearly
Answer:
270 m
Explanation:
When the driver hits the brakes, the kinetic energy of the car is converted by friction into heat. The kinetic energy K is given by:
(1)
The work W done by friction is:
(2)
where the force of friction is:
d: distance sliding
μ: friction coefficient
m: mass
g: gravitational constant
setting equation 1 and 2 equal:
(3)
simplifying:
(4)
Use equation 4 to find the ratio between the two cases gives:
(5)
plugging in: