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Sunny_sXe [5.5K]
3 years ago
8

Which of the following are car safety features that rely on increasing the

Physics
1 answer:
zubka84 [21]3 years ago
6 0
All of the above because crumple zones and seatbelts and airbags do get ruined so all of the above
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A stretched string is 2.11 m long and has a mass of 19.5 g. When the string is oscillated at 440 Hz, which is the frequency of t
Katarina [22]

Answer:

efsfefsfsdf

Explanation:

efsfesef

7 0
3 years ago
A 1500 kg car traveling at 80.0 km/h comes to a screeching halt in a time of 4.00 seconds. Calculate the force of friction exper
amm1812

Answer:

F=m x a

(F is force ,M is mass and A is acceleration)

in thisncase the Mass is given but we need to find ou the acceleration

Formula for acceleration-

a=(v - u)/t

(v is final velocity , u is initiatal velocity and t is time)

a = (0 - 80)/4

a= -80/4

a= -20

By substituting the values-

F= m x a

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F=-30000N

Thus the force acted is -30000N

hope this helps

7 0
3 years ago
Which of the following choices concerning the net magnetic flux through any enclosed surface is true according to Gauss' law for
11Alexandr11 [23.1K]

Answer:

e. The net magnetic flux in this case would be equal to zero.

Explanation:

As per Gauss law of magnetism we need to find the net magnetic flux through a closed loop

here we know that net magnetic flux is the scalar product of magnetic field vector and area vector

so here we have

\int B. dA = net magnetic flux

since we know that magnetic field always forms closed loop so if we find the integral over a closed loop

then in that case the value of the close integral must be zero

so correct answer would be

e. The net magnetic flux in this case would be equal to zero.

6 0
3 years ago
What charges must the particles have to create the electric field shown
Leviafan [203]

<u>Correct Option:</u>

X shows positive while Y shows negative charges, create the electric field as shown.

<u>Option: D</u>

<u>Explanation:</u>

The idea of an electric field provides a way to define how starlight travels to enter our eyes across huge distances of empty space.The electric field is a quantity of vectors that is present at any point in space. The electric field at a region shows the force that, if put at that position, will operate upon a positive charge device.

The direction of the electric field points directly at a positive point charge, and straight at a negative point charge. The field direction is implemented to the force direction exert on a positive test charge. It is externally from a positive charge and radially in toward a negative point charge.

8 0
3 years ago
i got the right answer for this question (pretty sure i guessed or just asked me teacher the answer?) but can someone explain ho
Bingel [31]
Well for you to get 980 Hz you divided 344 m/s with .35 m
6 0
3 years ago
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