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Gelneren [198K]
3 years ago
8

Why are some tsunamis described as local?

Physics
1 answer:
Romashka [77]3 years ago
6 0

Answer:

A local tsunami is one that originates from within about 100 km or less than 1 hour tsunami travel time from the impacted coastline. Local tsunamis can result in a significant number of casualties since authorities have little time to warn/evacuate the population.

Explanation:

Hope this helps

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The velocity of a body of mass 20kg decreases from 20m/s to 5m/s in a distance of 100 m force on body is ?​
MrRissso [65]

Answer:

hope it helps brainliest pls. and the answer is the one that is circled in red color.

Explanation:

8 0
3 years ago
A rock is thrown upward with an initial velocity of 9.6m/s to what hight does it rise and how long does it take to reach that hi
Lera25 [3.4K]

Given:

u(initial velocity):9.6 m/s

at the maximum height final velocity =0

The acceleration acting on the body is gravity as it is free falling object

=-9.8m/s^2

Now we know that

v^2-u^2 = 2as

Where v is the final velocity measured in m/s

u is the initial velocity which is measured in m/s

a is the acceleration measured in m/s^2

s is the distance traveled by the rock in this case it is considered as the height

Substituting these values we get

0-9.6= 2 x -9.8 x s

s= 0.49 m


Consider t as the time taken for the rock to travel

v=u+at

0=9.6 -9.8t

t=0.98sec



6 0
4 years ago
A car is driving east at 120. km/h from Toronto to Ottawa. The distance between the two cities is 425.5 km, how long will it tak
Ket [755]

Answer:

The time it will take for the driver to reach Ottawa is 3 hours 32 minutes and 45 seconds

Explanation:

The given parameters are;

Speed of the car = 120 km/h

Distance from Toronto to Ottawa = 425.5 km

The formula for speed is given as follows;

Speed = Distance/Time

Therefore, to find the time duration it takes from Toronto to Ottawa, we have;

Time duration = Distance from Toronto to Ottawa/(Speed of the car)

The time duration = 425.5/120 = 3.54583 hours = 212.75 min = 12765 seconds

The time it takes from Toronto to Ottawa while driving at 425.5 km/h = 12765 seconds.

4 0
3 years ago
A motor lifts a weight of 5N up to the height of 2m in 4 seconds. What will be the power of motor?​
PolarNik [594]

2.5 watt

Explanation:

we know

power = work done /time

work done gainst gravity is = mgh

as mg = weight = force = 5 N

and height = 2 m

so work done = mgh = 5*2 = 10N

therefore ,

Power = 10/4 = 2.5 watt

8 0
3 years ago
Which of the following represents a fully plastic collision? 1. Two billiard balls hit each other then move in opposite directio
Nutka1998 [239]

Answer:

Option (4)

Explanation:

There are two types of collision.

Perfectly elastic collision: the collision in which the momentum and kinetic energy is conserved. There is no loss of energy in other forms of energy.

Perfectly plastic collision: The collision in which the momentum is conserved and kinetic energy is not conserved. The two bodies stick after the collision.

Here, the bullet hits the block and then embedded in the block, it is the example of plastic collision.

3 0
3 years ago
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