3 years ago

Sound waves are_________Waves.

Physics

2 answers:

Dominik [7]3 years ago

5 0

The answer would be b. mechanical waves

Anastasy [175]3 years ago

4 0

Sound waves are mechanical(?) waves?

You might be interested in

Help? I'm not very good at physics.

Shalnov [3]

1. kinetic energy that's the one I am most sure about

8 0

3 years ago

A coin is rolling across a table at 0.23 m/s. It rolls off the table and lands 0.15 meters away from the edge of the table. How

timurjin [86]

Answer:

<em>The table is 2.08 m high</em>

Explanation:

<u>Horizontal Motion</u>

When an object is thrown horizontally with a speed vo from a height h, the range or maximum horizontal distance traveled by the object can be calculated as follows:

$\displaystyle d=v\cdot\sqrt{\frac {2h}{g}}$

If we know the range d = 0.15 m and the speed v = 0.23 m/s, we can solve the above equation for h:

$\displaystyle h=\frac{d^2\cdot g}{2v^2}$

$\displaystyle h=\frac{0.15^2\cdot 9.8}{2\cdot 0.23^2}$

$\boxed{h=2.08\ m}$

The table is 2.08 m high

4 0

3 years ago

What would the velocity of an object be if it was on a 1.75m

JulijaS [17]

Answer:

T = 4 sec / 2 = 2 sec period of revolution

S = 2 pi R = 2 * pi * 1.75 m = 11 m

V = S / T = 11 m / 2 sec = 5.5 m/s speed of object

4 0

3 years ago

Which three elements have strong magnetic properties?

lara [203]

Answer is A. Iron cobalt nickel

3 0

3 years ago

Read 2 more answers

Bob is pulling a 30kg filing cabinet with a force of 200N , but the filing cabinet refuses to move. The coefficient of static fr

vredina [299]

Answer:

$2.0\cdot 10^2 N$

Explanation:

The cabinet does not move: this means that the net force acting on it is zero.

Along the horizontal direction, we have two forces:

- The push exerted by Bob, F = 200 N, forward

- The frictional force, $F_f$ , which acts in the opposite direction (backward)

Since the net force must be zero, we have:

$F-F_f = 0$

So solving the equation we can find the magnitude of the friction force:

$F_f = F = 200 N=2.0 \cdot 10^2 N$

7 0

4 years ago