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3 years ago

6

What physical feature of a wave is related to the depth of the wave base? What is the difference between the wave base and still

water level?

1 answer:

Inessa [10]3 years ago

3 0

Answer:

physical feature of a wave is related to the depth of the wave base is The circular orbital motion

B. The wave base is the depth, and the still water level is the horizontal level

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A 7.25 kg7.25 kg block is sent up a ramp inclined at an angle ????=28.5°θ=28.5° from the horizontal. It is given an initial velo

Free_Kalibri [48]

Answer:

15.03 m

Explanation:

Given:

mass of the block, m = 7.25 kg

Angle, Θ = 28.5°

Initial speed of the block, v₀ = 15 m/s

let the distance traveled by the block be 's'

Now, applying the work energy theorem,

we have

$(m\times g\times\sin(\theta)\times s) + \mu_k\times mg\times s\times cos(\theta) = \frac{1}{2}\times m\times v^2$

on substituting the values in the above equation, we get

$(7.25\times 9.8\times\sin(28.5^o)\times s) + 0.326\times 7.25\times9.8\times s\times cos(28.5^o) = \frac{1}{2}\times 7.25\times 15^2$

or

$33.902\times s) +20.35\times s = 815.625$

or

$54.252\times s = 815.625$

s = 15.03 m

Hence, the block will travel 15.03 m up the ramp

6 0

3 years ago

If the pressure of a gas sample is quadrupled and the absolute temperature is doubled. True or False

Vanyuwa [196]

The given statement"If the pressure of a gas sample is quadrupled and the absolute temperature is doubled" is false.

Answer: Option B

<u>Explanation:</u>

As we know the direct relationship between Pressure and Temperature by the Gay-Lussac’s Law,

$P_{1} T_{1}=P_{2} T_{2}$

From this, we get,

$\frac{P_{1}}{T_{2}}=\frac{P_{2}}{T_{1}}$

$T_{2}=\frac{P_{1} T_{1}}{P_{2}}$

So, according to given statement, we have $P_{2} = 4 P_{1}$

Then from the above expression, we can find out the value of $T_{2}$ when pressure increased by 4 times of initial pressure as,

$T_{2}=\frac{P_{1} T_{1}}{4 P_{1}}$

Hence, we get,

$T_{1}=4 T_{2}$

Hence, from the above expression we can say that as we increase the pressure four times, the temperature does not get doubled. So, the given statement in the question is false.

6 0

4 years ago

A. 36 mins 52.5 secs<br> b. 24mins 22.5 secs<br> c. 13 mins 0 secs<br> d. 9 mins 45 secs

DedPeter [7]

I think it might be A. I’m sorry if I’m wrong

5 0

3 years ago

Read 2 more answers

The mass of a cube of iron is 250. g. iron has a density of 7.87 g/cm3. what is the mass of a cube of lead that has the same dim

Step2247 [10]

<span>density of lead = 11.34 g/cm^3 </span>
<span>mass = density x volume = 11.34 g/cm^3 x 45.3 = 513.7 g is the mass of a cube of lead</span>

7 0

4 years ago

Tarik winds a small paper tube uniformly with 185 turns of thin wire to form a solenoid. The tube's diameter is 7.51 mm and its

bonufazy [111]

The inductance, in microhenrys, of Tarik's solenoid 196μH.

<h3>What is Solenoid?</h3>

A coil of enameled or insulated wire coiled on a rod-shaped form constructed of solid iron, solid steel, or powdered iron is referred to as a solenoid. These kinds of gadgets can be utilised as miniaturised wireless receiving antennas, inductors in electrical circuits, and as electromagnets.

The inductance (L) of a coil wire (e.g solenoid) is given by;

L = μ₀N²A / l --------------(i)

Where;

l = the length of the solenoid

A = cross-sectional area of the solenoid

N= number of turns of the solenoid

μ₀ = permeability of free space = 4π x 10⁻⁷ N/A²

From the question;

N = 185 turns

l = 2.19cm = 0.019m

diameter, d = 7.51mm = 0.00751m

But;

A = π d² / 4 [Take π = 3.142 and substitute d = 0.00751m]

A = 3.142 x 0.00751² / 4

A = 4.42 x 10⁻⁵m²

Substitute these values into equation (i) as follows;

L = 4π x 10⁻⁷ x 185² x 4.42 x 10⁻⁵ / 0.0219 [Take π = 3.142]

L = 4(3.142) x 10⁻⁷ x 185² x 4.42 x 10⁻⁵ / 0.0219

L = 196 x 10⁻⁶ H

L = 196 μH

Therefore the inductance in microhenrys of the Tarik's solenoid is 196 μH.

to learn more about Solenoid go to - brainly.com/question/1873362

#SPJ4

7 0

2 years ago