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4 years ago

8

Becky is a 4-month-old infant whose mother uses a high-pitched voice, simple words or phrases, and lots of repetition when she s

peaks. Becky delights in her mother's use of _____.

1 answer:

hichkok12 [17]4 years ago

5 0

Answer:

child-directed speech

Explanation:

child-directed speech is Any of various speech patterns used by parents or caregivers when communicating with young children

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Consider a rubber rod having been rubbed with fur to give the rod a net negative charge, and a glass rod having been rubbed with

butalik [34]

Answer:

D

Explanation:

The rubber rod having been rubbed with fur get a net negative charge thereby gaining more mass which means the mass has increased compared to before it was rubbed against the fur while the glass rod having been rubbed with the silk to give it a net positive has lost mass and therefore has less mass compared to before it was rubbed on the silk.

6 0

4 years ago

A home gets its water from the public supply. Which of the following would be the best way for the homeowner to obtain a water-q

diamong [38]

The correct option is C.
Since the home gets its water from public supply, the best place to get the water quality report is from the local water treatment facility who processed the water. Water quality report is a document which summarizes information about the water sources that are used, detected contaminants, compliance observed, etc.

6 0

4 years ago

Read 2 more answers

You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 275 N in the positive x di

Volgvan

Answer:

f = 347.08 N

Explanation:

The frictional force exerted by the floor on the refrigerator is given as follows:

$f = \mu R = \mu W$

where,

f = frictional force = ?

μ = coefficient of static friction = 0.58

W = Weight of refrigerator = mg

m = mass of refrigerator = 61 kg

g = acceleration due to gravity = 9.81 m/s²

Therefore,

$f = \mu mg\\f = (0.58)(61\ kg)(9.81\ m/s^2)\\$

<u>f = 347.08 N</u>

8 0

3 years ago

Help please <br>the question is in the picture

Lemur [1.5K]

The kinetic energy bc the energy is independent of the gravitational acceleration, and it depends only on the speed and mass. So the last answer

7 0

3 years ago

A piece of amber is charged by rubbing with a piece of fur. If the net excess charge on the fur is +8.0 nC (+8.0 10-9 C), how ma

Ann [662]

Answer:

Number of electron on the fur will be $5\times 10^{10}electron$

Explanation:

We have given net charge on the fur $q=8nC=8\times 10^{-9}C$

Charge on one electron $e=1.6\times 10^{-19}C$

Let there are n number of electrons

So $ne=8\times 10^{-9}$

$n\times 1.6\times 10^{-19}=8\times 10^{-9}$

$n=5\times 10^{10}electron$

So number of electron on the fur will be $5\times 10^{10}electron$

6 0

3 years ago