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vichka [17]
3 years ago
7

3 track athletes run the 400 meter dash, Jackie 51 seconds and 1500 joules

Physics
1 answer:
Aleksandr [31]3 years ago
7 0

Answer:

ish all usual isaiah or easier fall iF.Hg. diff potty off radial ish usually appraisal

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Anyone know 1-5? Will give brainliest
baherus [9]

Answer:

1. 200 metres West

2. Dividing distance by time

3. Speed was unchanged

4. 1800 metres

5. 15 seconds

Explanation:

Running 500 metres West puts you 500 Metres west from the start. Then running 300 metres east puts you 200metres from where you started.

Since displacement is the distance you are from your original position 200 Metres West is the answer

2. Distance = Speed x Time

Rearrange that to get Speed = Distance / Time

3. Acceleration is when the rate of increase or decrease of speed or the direction is changing. When the speed or sirection dont change acceleration is 0

4. Distance = Speed x Time

60 x 30 = 1800 metres

5. Time = Distance / Speed

300 / 20 = 15 seconds

7 0
3 years ago
The cerebral cortex is divided into two halves called cerebral hemispheres. Please select the best answer from the choices provi
Ymorist [56]

The cerebral cortex is divided into two halves called cerebral hemispheres.

<h2><u><em>                                      True                                       </em></u></h2>

                                                    is your answer :)

6 0
3 years ago
Read 2 more answers
What height would a 4 kg book need to be to have a potential energy of
zloy xaker [14]

Answer:

5.99 m  = 6 m

Explanation:

PE = m*g*h

235.2 J = (4 kg)(9.81 m/s^2)(h)

h = (235.2 J)/(9.81*4)

h = 5.99 m

h = 6 m

5 0
3 years ago
This experiment, you compare several unknown powders to known powders. What is the name given to all of the known materials used
brilliants [131]
<span>B. Controls: The known powders attributes are already studied, so the are used as control measures to compare with the findings in the experiment with the unknown powders.</span>
5 0
3 years ago
Read 2 more answers
A ball starts from rest and accelerates at 0.460 m/s2 while moving down an inclined plane 8.85 m long. When it reaches the botto
Ivahew [28]

Answer:

V=2.8534m/s \approx 3m/s

Explanation:

From the question we are told that

Acceleration a=0.460m/s

Distance traveled S_1=8.5m

Distance traveled S_2=15.6m

Generally the velocity of the ball at the bottom of the first plane V is mathematically given by

v^2=2as

v=\sqrt{2as}

V=\sqrt{2*0.460*8.85}

V=2.8534m/s \approx 3m/s

6 0
3 years ago
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