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alexandr402 [8]
3 years ago
9

How can utilities be made safer to avoid damage during and after earthquakes

Physics
2 answers:
DIA [1.3K]3 years ago
5 0

wrap something soft around them. Think about how you get your packages if something gets shipped to you.


Arte-miy333 [17]3 years ago
3 0

Usually, much of the destruction throughout earthquakes occur from flooding and fires created by damaged utilities. Gas channels or water pipes can be crushed throughout the earthquakes. Adjustable brackets in the blocks can protect them of damage and automated shut-off devices can be employed to prevent gas and water leakage.

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The Momentum of a man riding his bicycle downhill can be calculated. The bicycle and the man have a combined mass of 40 Kg. The
shutvik [7]

Answer :The Momentum of a man riding his bicycle downhill is 400 kg m/s.

Explanation:

Mass of the man of bicycle = 40 kg

Velocity of the bicycle = 10 m/s

Momentum = Mass ×  Velocity = 40 kg × 10 m/s = 400 kg m/s

The Momentum of a man riding his bicycle downhill is 400 kg m/s.

3 0
3 years ago
Find the acceleration of an 800-kg car that has a net force of 4,000 N acting upon it.
kotykmax [81]

Answer:

The acceleration of the car is 5m/s²

Explanation:

Given data

Force F= 4,000N

Mass of car m= 800kg

Acceleration a= ?

Applying the Newton's second law of motion which states that the rate of change of momentum of a body is proportional to the external force and takes place in the direction of the force

F=ma

a= F/m

a= 4000/800

a=5m/s²

3 0
4 years ago
Which of the following is true about high-energy mechanical devices? A.They usually need to be kept warm in order to preserve me
labwork [276]

Answer:

B. They usually need to be cooled to dissipate thermal energy build-up and prevent damage.

Explanation:

High energy mechanical devices needs to be cooled down because they have moving parts which creates heat which may affect the other electrical and electronic component of the device. Because quality of material changes with the temperature. If high temperature occur might change the shape of that component and may affect the efficiency of the machine.

5 0
3 years ago
Read 2 more answers
How long does it take two skydivers to fall 150 m with acceleration of 9.80 m/s before they open their
sergejj [24]
S = 1/2 g t^2
So t^2 = 2 S / g
So time = square root ( 300 / 9.80 )
7 0
3 years ago
What is the speed of an object at rest
sammy [17]
The speed of an object is measured by calculating the distance it travels per unit time.
The formula in Physics for calculating speed is = distance/ time.

Since an object at rest is not covering any distance, the speed is always assumed to be 0 m/s.
4 0
3 years ago
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