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3 years ago

ASAP I have soooo much work to do pls answer right

Physics

1 answer:

Sveta_85 [38]3 years ago

7 0

4.) opposite
for every action there is an equal and opposite reaction. so in a soccer game if the soccer ball is coming towards your foot and ur foot is going towards the ball they will bounce off each other with the SAME FORCE(equal). but since humans have a greater mass we will not move. the soccer ball has a lighter MASS so it will move is the opposite direction(opposite)

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Question 1 of 10

Novay_Z [31]

Answer:

C. 5.6 × 10^11 N/C

Explanation:

The electric field $E$ at a distance $R$ from a charge $Q$ is given by

$E = k\dfrac{Q}{R^2}$

where $k = 9*10^9Nm/C$ is the coulomb's constant.

Now, in our case

$R = 0.0075m$

$Q = 0.0035C$ ;

therefore,

$E = (9*10^9)\dfrac{0.0035C}{(0.0075m)^2}$

$\boxed{E = 5.6*10^{11}N/C.}$

which is choice C from the options given (at least it resembles it).

6 0

3 years ago

Calculate the force that the 4kg block exerts on the 10kg block

Kryger [21]

Acceleration=force/mass=28/(10+4)=2m/s^2

force10kg=ma=10*2
force4kg=ma=(10*2)=20
the4 kg is pushing against the 10kg block

vf=vi+at
-10=20*28/14 * t
t=30/2=15sec

i hope this can help you.

8 0

3 years ago

A little girl kicks a soccer ball, it goes 10 feet then comes back to her, how is this possible??

kirza4 [7]

Its gravitational force

7 0

3 years ago

a toy car has a 2.0 A current, and its resistance is 1.75 ohms. How much voltage does the car require

o-na [289]

Answer:

the answer will be 24.40 ohms law

Explanation:

5 0

3 years ago

An object is pulled to the left by a force of 50 N. The same amount of force pulls it to the right. The object will ____.

11111nata11111 [884]

<h2>Required Answer:</h2>

The body will stay at rest (Option D). It is because a force of magnitude 50 N is pulled towards left and another force is pulling it towards right with same magnitude 50 N. So, the direction of force is opposite and magnitude is same i.e. 50 N. So, they will cancel each other and net force is 0. Hence, there would be no acceleration.

Option A - Showing acceleration
Option B - Showing acceleration
Option C - Change of direction due to Net force

Hence, these options are incorrect because they are only possible when net external force is non-zero. Staying at rest i.e. Option D means there is no motion and hence no acceleration, this shows that net force is 0 $.$

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3 0

3 years ago