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tankabanditka [31]

3 years ago

9

Identify the conditions for an inelastic collision in a closed system. Check all that apply.

2 answers:

jeyben [28]3 years ago

6 0

Answer: Energy is conserved.

Momentum is conserved

One object may be stationary before an inelastic collision.

Explanation:

goldfiish [28.3K]3 years ago

3 0

teo objects hit and stick together

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A person sitting on a pier observes incoming waves that have a sinusoidal form with a distance of 2.5 m between the crests. Of a

Doss [256]

Answer:

Part(a): The frequency is $\bf{0.2~Hz}$ .

Part(b): The speed of the wave is $\bf{0.5~m/s}$ .

Explanation:

Given:

The distance between the crests of the wave, $d = 2.5~m$ .

The time required for the wave to laps against the pier, $t = 5.0~s$

The distance between any two crests of a wave is known as the wavelength of the wave. So the wavelength of the wave is $\lambda = 2.5~m$ .

Also, the time required for the wave for each laps is the time period of oscillation and it is given by $T = 5.0~s$ .

Part(a):

The relation between the frequency and time period is given by

$\nu = \dfrac{1}{T}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(1)$

Substituting the value of $T$ in equation (1), we have

$\nu &=& \dfrac{1}{5.0~s}\\~~~&=& 0.2~Hz$

Part(b):

The relation between the velocity of a wave to its frequency is given by

$v = \nu \lambda~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(2)$

Substituting the value of $\nu$ and $\lambda$ in equation (2), we have

$v &=& (0.2~Hz)(2.5~m)\\~~~&=& 0.5~m/s$

5 0

2 years ago

Which part of a stream's sediment load moves the slowest?

Rudiy27

The bed load moves the slowest from all the parts of the stream's sediment. It consists of particles suspended that are suspended and float around the bed. This part is the slowest in motion, as it rolls, and moves with the flow. The particles near the bed are not dissolved so they settle at the bottom and move with the stream.

4 0

3 years ago

What is friction and the types withe examples.

Blizzard [7]

Explanation:

The answer is In the picture. Thanks.

7 0

2 years ago

Earth orbits once around the Sun about every 365 days. The Moon orbits around Earth. About how many days does it take the Moon t

PtichkaEL [24]

The answer is is 730.5 days rounded, so A. 730

3 0

3 years ago

A helicopter is moving horizontally to the right at a

In-s [12.5K]

Answer:

Explanation:

Given

Weight of helicopter $W=53800 N$

inclination of blades with vertical $\theta =21^{\circ}$

Suppose $F_l$ is the lifting Force

Now using F-B-D

$F_{net}=0$ as helicopter is moving with constant velocity

balancing forces in Vertical Force

$F_l\cos \theta -W=0$

$F_l\cos \theta =W$

$F_l=\frac{W}{\cos \theta }$

$F_l=\frac{53800}{\cos 21}$

$F_l=57,627.6\ N$

Now sin component of lift is air resistance

$F_l\sin \theta -R=0$

where R=air resistance

$R=F_l\sin \theta$

$R=57,627.6\times \sin (21)$

$R=20,651.88\ N$

8 0

3 years ago