Ask question

Ask question

All categories

3 years ago

6

Water bending around a rock in the middle of a lake disrupts the water behind the rock. This is an example of which wave propert

y?
diffraction
reflection
refraction
interference

1 answer:

Vladimir [108]3 years ago

5 0

Answer:

I would guess C. Refraction, since thats where waves bend.

Explanation:

You might be interested in

So long as there are(is) ______ there is no movement.

patriot [66]

Answer:

answer is friction. MCQ A is answer

6 0

2 years ago

Peter Piper picked a peck of pickled peppers. If Peter Piper picked a peck of pickled peppers, how many pickled peppers did Pete

maria [59]

Peter picked 8 quarts of peppers.

8 0

2 years ago

Read 2 more answers

A 5kg bag falls a verticle height of 10m before hitting the ground.

g100num [7]

Answer:

$u = 7m {s}^{ - 1}$

Explanation:

We know that when we don't have air friction on a free fall the mechanical energy (I will symbololize it with ME) is equal everywhere. So we have:

$me(1) = me(2)$

where me(1) is mechanical energy while on h=10m

and me(2) is mechanical energy while on the ground

Ek(1) + DynamicE(1) = Ek(2) + DynamicE(2)

Ek(1) is equal to zero since an object that has reached its max height has a speed equal to zero.

DynamicE(2) is equal to zero since it's touching the ground

Using that info we have

$m \times g \times h = \frac{1}{2} \times m \times u {}^{2} \\$

we divide both sides of the equation with mass to make the math easier.

$9.8 \times 10 = \frac{1}{2} \times u {}^{2} \\ \frac{98}{2} = u {}^{2} \\ u { }^{2} = 49 \\ u = 7$

7 0

3 years ago

a cannonball is fired with a speed of 76 m/s from the top of a cliff. It strikes the plane below with a speed of 89 m/s. if we n

RSB [31]

Answer:

we use the formula,

$v {}^{2} = u {}^{2} + 2gh$

$89 {}^{2} = 76 {}^{2} + 2(10)h$

$h = (89 {}^{2} - 76 {}^{2} ) \div 20$

h= 107 m

5 0

3 years ago

Answer all please!!!!!!!!!!✌

Nina [5.8K]

Answer:

koj ruam zog

Explanation:

7 0

3 years ago

Read 2 more answers