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djverab [1.8K]
4 years ago
8

In scientific notation 8700 is written

Physics
2 answers:
Alex73 [517]4 years ago
8 0

Answer:

8.7 x 10^3 is the correct answer.

Nookie1986 [14]4 years ago
6 0

Answer:

8.7 x 10^3  

I have no explanation, I just know that it is written as this

                     

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How much current is in a circuit that includes a 9-volt battery and a bulb with a resistance of 12 ohms?
Reil [10]

V = IR

Where v is voltage I is current and r is resistance

So

V = 9

R = 12

V/R = I

9/12 = I

I = 0.75 A

4 0
3 years ago
Read 2 more answers
Please help me I need this for a test
Marysya12 [62]

Answer:

Explanation:

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8 0
3 years ago
A student throws a water balloon with speed v0 from a height h = 1.82 m at an angle θ = 29° above the horizontal toward a target
3241004551 [841]

Answer:

v_o = 7.76 m/s

Explanation:

As we projected the balloon at speed vo at an angle of 29 degree

so the two component of velocity is given as

v_x = v_ocos29 = 0.875 v_o

v_y = v_o sin29 = 0.485 v_o

now we know that in x direction we have

d = v_x t

7.5 = 0.875 v_o t

v_o t = 8.57

in y direction we have

- 1.82 = (0.485 v_o) t - \frac{1}{2}gt^2

-1.82 = 0.485(8.57) - 4.9 t^2

t = 1.1 s

now we have

v_o = 7.76 m/s

7 0
4 years ago
How long will it take a basketball starting from rest to roll without slipping 2.6 m down an incline that makes an angle of 30.8
Romashka-Z-Leto [24]

Answer:

<em>t = 1.02 s</em>

Explanation:

friction = 0 N (no slipping)

downward force along the inclined plane = F = mgsin(30.8)

                                                                        F = ma

⇒                                                                      a = 9.81 sin(30.8)

                                                                         a = 5.02 m/s^2

now we have

displacement = s = 2.6 m

acceleration   = a = 5.02m/s^2

initial velocity = Vi = 0m/s

time                 = t =  ?

<u>APPLYING THE 2ND EQUATION OF MOTION:</u>

<em>    S = (Vi)(t)+0.5at^2</em>

<em>2.6 = 0(t) + 0.5 * 5.02 * t^2</em>

<em>t = 1.02 s</em>

7 0
3 years ago
For two objects with masses 100 kg and 500 kg to be 20 meters apart , find the gravity between them
Vikki [24]

Answer:

8,3375*10^-9 N

Explanation:

4 0
3 years ago
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