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jarptica [38.1K]

3 years ago

7

"I help people adopt beneficial behaviors such as a balanced diet and exercise. I am a ______ psychologist." A. Rehabilitation B

. Developmental C. Community D. Health

2 answers:

Rama09 [41]3 years ago

8 0

Answer:

health

Explanation:

rehabilitation focuses on people who come back from certain habits

development focuses on infants and kids behavior

community focuses on community problems

julsineya [31]3 years ago

7 0

Answer:

Explanation: D. HEALTH

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A tabletop gamer has designed a game that requires three dice to be thrown onto a tray with a measurement grid. To add an extra

Airida [17]

Answer:

The resulting coordinate is $(x,y) = (-0.170 \ m , -0.038 \ m )$

Explanation:

From the question we are told that

The mass of the first dice is $m_1 = 11.10 \ g$

The mass of the second dice is $m_2 = 15.10 \ g$

The mass of the third dice is $m_3 = 18.90 \ g$

The coordinate of the first dice is $(x_1, y_1) = (0.3150\ m , -0.4990 \ m )$

The coordinate of the second dice is $(x_2,y_2) = (-0.4050 \ m , 0.4850 \ m )$

The coordinate of the third dice is $(x_3 , y_3) = (-0.1150 \ m , -0.1850\ m )$

Generally the resulting coordinate of the center of mass of the dice in the x-axis is mathematically evaluated as

$x\ cm = \frac{m_1 * x_1 + m_2 * x_2 + m_3 * x_3}{m_1 + m_2 +m_3 }$

i.e the summation of the moments about their x-axis divided by the magnitude of their masses

substituting values

$x\ cm = \frac{11.0 * 0.3150 + 15.10 * (-0.4050) + 18.90 * (-0.1150)}{11.100 + 15.10 +18.90 }$

$x\ cm = -0.170 \ m$

Generally the resulting coordinate of the center of mass of the dice in the y-axis is mathematically evaluated as

$y\ cm = \frac{m_1 * y_1 + m_2 * y_2 + m_3 * y_3}{m_1 + m_2 +m_3 }$

$y\ cm = \frac{ 11.10 * (-0.4990) + (15.10) * (0.4850) + (18.90) * (-0.1850)}{ 11.10 + 15.10 +18.90 }$

$y\ cm = -0.038 \ m$

Thus the resulting coordinate is $(x,y) = (-0.170 \ m , -0.038 \ m )$

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3 years ago

When a baseball hits a

frez [133]

The reaction force is the glove pushing against the ball because the reaction force would be the ball pushing onto the glove.

Hope that helps :)

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3 years ago

In which situation is no work being done?

Nataliya [291]

I would say that work is being done in all the situations because technically in physics work is done whenever force is applied through a distance.

8 0

3 years ago

Read 2 more answers

A pole-vaulter is nearly motionless as he clears the bar, set 4.2 m above the ground. He then falls onto a thick pad. The top of

Inessa05 [86]

initial height of the pole vaulter = 4.2 m

height of the pole vaulter just before it touch the pad = 80 cm

so the total displacement of pole vaulter just before he will touch the pad = 4.2 - 0.80 = 3.4 m

now by kinematics

$v_f^2 - v_i^2 = 2a d$

$v_f^2 - 0^2 - 2* 9.8*3.4$

$v_f^2 = 66.64$

$v_f = 8.16 m/s$

now after this he will come to rest after compressing the pad by 50 cm

so again we can use kinematics to find its acceleration

$v_f^2 - v_i^2 = 2 a d$

$0 - 8.16^2 = 2*a*0.50$

$a = -66.64 m/s^2$

so here its acceleration will be - 66.64 m/s^2

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3 years ago

Look at the potential energy diagram for a chemical reaction. Which statement correctly describes the energy changes that occur

lukranit [14]

The activation energy is 10 kJ and the reaction is exothermic.

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