Need help with ASAP please

Earthquakes are usually caused by tectonic plates slipping past each other. An earthquake generates seismic waves of energy that

lyudmila [28]

Answer:

I think a tsunami

Explanation:

im not 100% sure but that would make the most sense to me hope this helped!

6 0

4 years ago

Two blocks slide without friction. Block 1 has a mass of 1.6 kg and a velocity of +5.5 m/s. Block 2 has a mass of 2.4 kg and a v

fomenos

Answer:

The velocity of block 1 after the collision is 1.9 m/s.

Explanation:

Hi there!

The momentum of the system composed by the two blocks is conserved (i.e. it remains constant) because no external force is acting on the blocks at the moment of the collision. Then, the momentum of the system before the collision is equal to the momentum after the collision. The momentum of the system is calculated adding the momenta of the two blocks.

initial momentum of the system = final momentum of the system

p1 + p2 = p1´ + p2´

m1 · v1 + m2 · v2 = m1 · v1´ + m2 · v2´

Where:

p1 = initial momentum of block 1.

p2 = initial momentum of block 2.

p1´ = final momentum of block 1.

p2´ = final momentum of block 2.

m1 = mass of block 1.

m2 = mass of block 2.

v1 = initial velocity of block 1 (before the collision).

v2 = initial velocity of block 2.

v1´ = final velocity of block 1.

v2´ = final velocity of block 2.

Let´s write the equation with the data we have:

m1 · v1 + m2 · v2 = m1 · v1´ + m2 · v2´

1.6 kg · 5.5 m/s + 2.4 kg · 2.5 m/s = 1.6 kg · v1´ + 2.4 kg · 4.9 m/s

Solving for v1´:

14.8 kg · m/s = 1.6 kg · v1´ + 11.76 kg · m/s

(14.8 kg · m/s - 11.76 kg · m/s) / 1.6 kg = v1´

v1´ = 1.9 m/s

The velocity of block 1 after the collision is 1.9 m/s.

6 0

4 years ago

Now you try! Draw the arrows to represent the motion described, then calculate the distance

rewona [7]

<h2>Answer:</h2>

Distance = 27m

Displacement = 3 metres South

<h2>Explanation:</h2>

Distance is a scalar quantity and it represents the length of the path taken by a body.

Displacement is a vector quantity and it represents the distance between the start and end points of a body.

Now to the question:

<em>The car drives 12 metres North i.e</em>

North (+ve)

∧

|

| 12m

|

<em>The car then drives 15 metres South i.e</em>

|

| 15m

|

∨

South (-ve)

(a) The car's distance d, is just the total distance covered to drive North and then South. i.e

d = 12m + 15m = 27m

(b) The car's displacement D, however takes into respect, the direction of the car as it drives to and fro.

Let North be taken as positive direction

Let South be taken as negative direction.

This means that;

12 m North = +12 m

15 m South = -15m

Therefore;

D = +12 - 15

D = -3m

Since the displacement is negative, then it means that the direction of the total displacement is South.

Therefore, the displacement is 3 metres South

PS: The arrow diagram has also been attached to this response

3 0

3 years ago

PLEASE HELP A car accelerates from rest at 2.92 m/s2 What is the velocity at the end of 5.1 s? Answer in units of m/s. What is t

uranmaximum [27]

Answer:

first you have to organize the data. a=acceleration t=time v0=inicial velocity vf=final velocity

a=2.92m/s2

t=5.1s

vf=?

v0=0

now the formula you have to use is: vf=vi+a*t (final velocity equals to inicial velocity plus acceleration times time)

Explanation:

i was the best at my class, hope it helped

6 0

3 years ago

De Broglie's hypothesis was verified when electrons scattered by certain crystals were observed to experience the wave phenomeno

solmaris [256]

Answer: diffraction

Explanation:

<span>De Broglie's hypothesis was that matters (including the electrons) had the same duality property of light: it behaves as a particles and as a wave.
</span>

One of the fundamental features of the waves is that they exhibit diffraction. So, when the electron was found to show diffraction, DeBroglie's hypothesis was verfied.

Diffraction is the bending of a wave around a barrier. When the wave passes through a small (narrow) opening (slit) it will generate patterns due to the interfence of the waves that experimented the diffraction.<span />

6 0

4 years ago

Read 2 more answers