All categories

3 years ago

5. True or False: The medium moves along with a wave.

Physics

2 answers:

zheka24 [161]3 years ago

7 0

Answer:

false. the medium never moves

Explanation:

kherson [118]3 years ago

3 0

Falseeeeeeeeeeeeeeeeeeeeeee

You might be interested in

A rocket takes off from Earth's surface, accelerating straight up at 47.2 m/s2. Calculate the normal force (in N) acting on an a

lions [1.4K]

Answer:

Approximately $4.61\times 10^{3}\; {\rm N}$ upwards (assuming that $g = 9.81\; {\rm m\cdot s^{-2}}$ .)

Explanation:

External forces on this astronaut:

Weight (gravitational attraction) from the earth (downwards,) and
Normal force from the floor (upwards.)

Let $(\text{normal force})$ denote the magnitude of the normal force on this astronaut from the floor. Since the direction of the normal force is opposite to the direction of the gravitational attraction, the magnitude of the net force on this astronaut would be:

$\begin{aligned}(\text{net force}) &= (\text{normal force}) - (\text{weight})\end{aligned}$ .

Let $m$ denote the mass of this astronaut. The magnitude of the gravitational attraction on this astronaut would be $(\text{weight}) = m\, g$ .

Let $a$ denote the acceleration of this astronaut. The magnitude of the net force on this astronaut would be $(\text{net force}) = m\, a$ .

Rearrange $\begin{aligned}(\text{net force}) &= (\text{normal force}) - (\text{weight})\end{aligned}$ to obtain an expression for the magnitude of the normal force on this astronaut:

$\begin{aligned}(\text{normal force}) &= (\text{net force}) + (\text{weight}) \\ &= m\, a + m\, g \\ &= m\, (a + g) \\ &= 80.9\; {\rm kg} \times (47.2\; {\rm m\cdot s^{-2}} + 9.81\; {\rm m\cdot s^{-2}}) \\ &\approx 4.61 \times 10^{3}\; {\rm N}\end{aligned}$ .

3 0

2 years ago

Which mountains are<br> YOUNGEST?

Hoochie [10]

The answer is B,
because it is more round and lower than the other mountains.
The steeper and more pointy and higher a mountain is, the older it is.

Hope this helps!
-Jana

3 0

3 years ago

Read 2 more answers

If you and 3 friends are playing tug of war and are pulling with a force of 35 N and your teammate with 37 N, while your opponen

mash [69]

72N and 75N. no. hope it helps you

3 0

4 years ago

Which is an example of a chemical change? A) glass melts in a furnace B) liquid water boils into steam C) newspaper decays in a

coldgirl [10]

I believe your answer is C.

3 0

3 years ago

Read 2 more answers

Choose the statement that is a misconception about a system in chemical equilibrium.

Maksim231197 [3]

Answer:

There are equal parts reactants and products.

Explanation:

When a system is in a chemical equilibrium, the rate at which the forward reaction occur is the same as the rate at which the reverse reaction occurs. This system is said to undergo a reversible reaction. The concentration of the reactants and products do not change, i.e are constant.

In a chemical equilibrium, the reaction continues in both directions but at the same rate.

Therefore the statement that is a misconception about a system in chemical equilibrium is 'There are equal parts reactants and products'.

4 0

3 years ago