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frez [133]
3 years ago
11

A small car has a head-on collision with a large truck. Which of the following statements concerning the magnitude of the averag

e force due to the collision is correct? A small car has a head-on collision with a large truck. Which of the following statements concerning the magnitude of the average force due to the collision is correct? The small car and the truck experience the same average force. The small car experiences the greater average force. The truck experiences the greater average force. It is impossible to tell since the masses are not given. It is impossible to tell since the velocities are not given.
Physics
1 answer:
Veronika [31]3 years ago
4 0

Answer:

The small car and the truck experience the same average force.

Explanation:

The average net force will be the resultant force of the average forces of both vehicles. On collision, they'll both experience the same impact force, but the deceleration and deformation felt by the individual vehicle will be proportional to the mass of the vehicle. This is why it will seem like the car will have more force but is not actually so.

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Eight 7.0W Christmas tree lights are strung in series to a 110 V light source. What is the resistance of each bulb?
Evgesh-ka [11]

Answer:

Resistance = 1728.57 Ohms

Explanation:

Given the following data;

Power = 7 Watts

Voltage = 110 Volts

To find the resistance of each bulb;

Mathematically, power can be calculated using the formula;

Power = \frac {Voltage^{2}}{resistance}

Making resistance the subject of formula, we have;

Resistance = \frac {Voltage^{2}}{power}

Substituting into the formula, we have;

Resistance = \frac {110^{2}}{7}

Resistance = \frac {12100}{7}

Resistance = 1728.57 Ohms

8 0
3 years ago
An object exhibits SHM with an angular frequency w = 4.0 s-1 and is released from its maximum displacement of A = 0.50 m at t =
vivado [14]

Explanation:

It is given that,

Angular frequency, \omega=4\ s^{-1}

Maximum displacement, A = 0.5 m at t = 0 s

We need to find the time at which it reaches its maximum speed. Firstly, we will find the maximum velocity of the object that is exhibiting SHM.

v_{max}=A\times \omega

v_{max}=0.5\times 4

v_{max}=2\ m/s............(1)

Acceleration of the object, a=\omega^2A

a=4^2\times 0.5

a=8\ m/s^2...............(2)

Using first equation of motion we can calculate the time taken to reach maximum speed.

v=u+at

t=\dfrac{v-u}{a}

t=\dfrac{2-0}{8}

t = 0.25 s

So, the object will take 0.25 seconds to reach its maximum speed. Hence, this is the required solution.

4 0
3 years ago
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trasher [3.6K]

Answer:

1.2 kg

Explanation:

F = 18N

a = 15 m/s^2

F = ma

18 = 15m

m = 1.2 kg

3 0
3 years ago
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balu736 [363]
THE ANSWER IS B THE CEASE TO EXIST WHEN LAVED IN LIQUDI hope that helped
6 0
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Anni [7]

Answer:

Laws are statements about something that's been observed and stated while a theory is an explanation of what's been observed. This connection between them forms a main idea that many people regulate as "what's normal."

Explanation:

4 0
3 years ago
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