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Alika [10]
3 years ago
9

What is the average acceleration of the object represented in the graph above over the eight seconds? 0.5 cm/s2 1.0 cm/s2 1.5 cm

/s2 2.0 cm/s2
Physics
1 answer:
Olenka [21]3 years ago
3 0

Answer:

Draw tangents to the graph at 1.0 s and 5.0 s. 0. 1. 2. 3. 4. 5. 6. 0 ... When the velocity component is negative, the extra displacement during ... 2 - 3 min. constant acceleration component until the car stops. ..... ii). The gravitational force and the drag force are doing work on the object. .... N) × (0.5 m) = 5 × 10. 2.

Explanation:

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A notebook is on a desk the force of the notebook weight pushing down on the table is 10 in the force of the table normal force
Mamont248 [21]

Answer:

Yes it is balanced

Explanation:

Because 10-10= a net force of 0N

Its equal (balanced)

5 0
3 years ago
A 60-V potential different is applied across a parallel combination of a 10-ohm and 20-ohm resistor. What is the current in the
kodGreya [7K]
V=IR
60-V
The current that passes through a 10-ohm resistor = I
I=60/10
6 amperes
3 0
3 years ago
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What percentage of energy consumed in the united states is nonrenewable??
IgorLugansk [536]
It was estimated, according to the United States Energy Information Administration, that the United States still consumes almost 91% of non-renewable resources as its energy source. In addition, 32 % of it are natural gas, 28 % for petroleum and crude oil, and 21 % for coal power.
6 0
3 years ago
A 300 g glass thermometer initially at 23 ◦C is put into 236 cm3 of hot water at 87 ◦C. Find the final temperature of the thermo
DIA [1.3K]

Answer:

74^{\circ} C

Explanation:

We are given that

Mass of glass,m=300 g

T_1=23^{\circ}

Volume,V=236cm^3

Mass of water=density\times volume=1\times 236=236 g

Density of water=1g/cm^3

Temperature of hot water,T=87^{\circ}

Specific heat of glass,C_g=0.2cal/g^{\circ}C

Specific heat of water,C_w=1 cal/g^{\circ}C

Q_{glass}=m_gC_g(T_f-T_1)=300\times 0.2(T_f-23)

Q_{water}=m_wC_w(T_f-T)=236\times 1(T_f-87)

Q_{glass}+Q_{water}=0

300\times 0.2(T_f-23)+236\times 1(T_f-87)

60T_f-1380+236T_f-20532=0

296T_f=20532+1380=21912

T_f=\frac{21912}{296}=74^{\circ} C

5 0
3 years ago
A wave of infrared light has a speed of 6 m/s and a wavelength of 12 m. What is the frequency of this wave?
givi [52]
I'll be happy to solve the problem using the information that
you gave in the question, but I have to tell you that this wave
is not infrared light.

If it was a wave of infrared, then its speed would be close
to 300,000,000 m/s, not 6 m/s, and its wavelength would be
less than 0.001 meter, not 12 meters.

For the wave you described . . .

             Frequency  =  (speed)  /  (wavelength)

                                 =  (6 m/s)  /  (12 m)

                                 =      0.5 / sec

                                 =      0.5 Hz .  

(If it were an infrared wave, then its frequency would be
greater than 300,000,000,000 Hz.)
5 0
3 years ago
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