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3 years ago

7

When a child does not know how to react emotionally to a situation they will observe the emotional expressions of others. This i

s called
Question 11 options:

1)

self-awareness

2)

behaviorism

3)

humanism

4)

social referencing

1 answer:

Otrada [13]3 years ago

6 0

Answer:

4)

social referencing

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A pitcher throws a 0.140 kg baseball, and it approaches the bat at a speed of 35.0 m/s. The bat does Wnc = 75.0 J of work on the

Eva8 [605]

Answer:

The speed of the ball is 42.5 m/s

Explanation:

The initial kinetic energy of the ball is:

$K_1=\frac{1}{2} m v_0^2=\frac{1}{2}*0.140 kg*(35.0 m/s)^2$ = 85.75 J

The speed of the ball after leaving the bat is:

$K_2=K_1+W_{nc}\\ \frac{1}{2}mV^2= 85.75 J + 75 J\\ (\frac{1}{2}mV^2)2=( 160.75 J)2\\ mV^2= 321.5 J\\ V^2= \frac{321.5 J}{0.140kg} \\ V=\sqrt{\frac{321.5 J}{0.140kg}}$

V=47.92 m/s

Using kinematic equation we can find the speed of the ball after being 25 m above the point of collision:

$V_f^2-V^2=-2gh$

$V_f^2-(47.92 m/s)^2=-2*9.81m/s^2*25m$

$V_f^2=-2*9.81m/s^2*25m+(47.92 m/s)^2$

$V_f=\sqrt{-2*9.81m/s^2*25m+(47.92 m/s)^2}$

$V_f=42.5m/s$

3 0

2 years ago

two forces x and y are acting at 120 degrees to each other, if the magnitude are 8N and 10N respectively determine their resulta

Ber [7]

The resultant force of both forces is 15.62 N.

<h3 /><h3>What is resultant?</h3>

The Resultant of forces is a single force obtained when two or more forces are combined.

To calculate the resultant of the force, we use the formula below.

Formula:

R = √[a²+b²-2abcos∅]..................... Equation 1

Where:

R = Resultant of the forces.
∅ = Angle between both forces

From the question,

Given:

a = 8 N
b = 10 N

Substitute these values into equation 1

R = √[8²+10²-2×8×10cos120°]
R = √[64+100-160cos120°]
R =√ [164-160(-0.5)]
R = √[164+80]
R = √(244)
R = 15.62 N

Hence, the resultant force of both forces is 15.62 N.

Learn more about resultant force here: brainly.com/question/25239010

#SPJ1

8 0

2 years ago

Read 2 more answers

A student sees a commercial that claims a new dishwasher is energy efficient.

erma4kov [3.2K]

Answer:

ENERGY STAR-certified dishwashers

Explanation:

use advanced technology to get dishes clean while using less water and energy. Soil sensors test the degree of dirt on dishes throughout the wash and adjust the cycle to achieve optimum cleaning with minimal water and energy use.

ENERGY STAR Most Efficient 2021 Dishwashers

Miele. G 6880 SCVi. Type. Standard. ...

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Miele. G 6875 SCVi SF. Type. Standard. ...

Miele. G 6885 SCVi. Type. Standard. ...

Miele. G 6835 SCi. Type. Standard. ...

Miele. G 6935 SCi. Type. Standard. ...

Miele. G 6987 SCVi. Type. Standard. ...

Miele. G 4780 SCVi. Type. Standard.

Energy-Saving “No-Heat” Dry

Most new dishwashers offer an energy-saving no-heat drying feature. At the end of the rinse cycle, if the feature is selected, room air is circulated through the dishwasher by fans, rather than using an electric heating element to bake the dishes dry.

Best Dishwashers

Best Overall: Bosch 300 Series Dishwasher.

Best High-End Dishwasher: Bosch 800 Series Dishwasher.

Best Cleaning Performance for the Price: GE GDP665SYNFS Dishwasher.

Best Feature Set and Design: KitchenAid KDPM604KPS Dishwasher.

Best Budget Dishwasher: Maytag MDB7959SKZ Dishwasher.

8 0

3 years ago

What is frictional less pulley

Talja [164]

Answer:

Conditions under which the belt and pulleys are operating – The friction between the belt and pulley may decrease substantially if the belt happens to be muddy or wet, as it may act as a lubricant between the surfaces.

Explanation:

I hope that this would be helpful

7 0

2 years ago

a sound has a frequency of 230 hz. what is the velocity of this sound if it has a wavelength of 46 cm?

lapo4ka [179]

Answer:

V=f×λ

Where,

V is the velocity of the wave measure using m/s.

f is the frequency of the wave measured using Hz.

λ is the wavelength of the wave measured using m.

transform 46 cm in m = 0.46m and there u have it

Explanation:

6 0

2 years ago