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4 years ago

What stands for sound navigation and ranging

1 answer:

6 0

Sonar, originally an <span>acronym for SOund Navigation And Ranging
</span>a technique that uses sound<span> propagation.</span>

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the velocity of sound on a particular day outside is 331 meter/sound. what is the frequency of a tone if it has a wavelength 0.6

nataly862011 [7]

The frequency (f) in hertz (1/s) of the sound waves is the quotient when its speed (S) is divided by the wavelength (n). This is mathematically expressed,

f = S / n ; f = (331 m/s) / (0.6 m) = 551.67 / s

Thus, the frequency of the wave is 551.67 Hz.

6 0

4 years ago

A tiger leaps from a rock 15 meters off the ground with a horizontal velocity of 4.5m/s. How far away from the rock will the tig

larisa [96]

Answer: it will take 8.33s for the tiger to land

Explanation:

4 0

3 years ago

If the area of the plates of a parallel plate capacitor is halved, and the separation between the plates tripled, all while the

Scorpion4ik [409]

Answer:

Explanation:

The capacitance of a parallel plate capacitor is given by

$C=\frac{\epsilon _{0}A}{d}$

where A is the area of plates and d is the separation between the plates.

Now the area is halved and the separation is tripled.

The new capacitance is

C' = C / 6

Initial potential energy is given by

$U=\frac{q^{2}}{2C}$

here the charge is constant

The new energy is given by

$U'=\frac{6q^{2}}{2C}$

U' = 6 U

The energy becomes six times the initial value.

3 0

3 years ago

The world's fastest production sportscar has a top speed of 415 kmh-1(a)Convert this speed to ms-1.[ 1](b)The distance from Lond

Alex73 [517]

Answer:

(a). The speed is 115.28 m/s.

(b). The time is 94 min.

(c). The International Space Station travels 43202.400 km.

(d). Speed is scalar quantity.

Velocity is vector quantity.

Explanation:

Given that,

Top speed = 415 km/h

1 miles = 1609 m

(a). We need to calculate the speed in m/s

Using conversion of km/h to m/s

$v=415\ km/h$

$v=415\times\dfrac{5}{18}$

$v=115.28\ m/s$

(b). We need to calculate the distance from London to Edinburgh in km

Using conversion for distance

$d=403\ miles$

Distance in meter,

$d=403\times1609$

$d=648427\ m$

$d=648.427\ km$

We need to calculate the time

Using formula of time

$t=\dfrac{d}{v}$

Put the value into the formula

$t=\dfrac{648.427}{415}$

$t=1.56\ h$

$t=1\ hours 34\ min$

$t= 94\ min$

(c). Speed v' =7.66 km/s

v'=7660 m/s

In the time it takes the car to travel from London to Edinburgh,

We need to calculate the distance

Using formula of distance

$d'=v'\times t$

Put the value into the formula

$d'=7660\times94\times60$

$d'=43202400\ m$

$d'=43202.400\ km$

(d). Speed :

Speed is equal to the distance divided by time.

It is scalar quantity.

Velocity :

Velocity is equal to the displacement divided by time.

It is vector quantity.

Hence, (a). The speed is 115.28 m/s.

(b). The time is 94 min.

(c). The International Space Station travels 43202.400 km.

(d). Speed is scalar quantity.

Velocity is vector quantity.

3 0

3 years ago

If you determined the electric field intensity in a field using a test charge of 1.0×10−6 C and then repeated the process with a

uranmaximum [27]

The force F exerted by an electric field on a test charge q is given by:

$F=qE$

From this equation we notice that if we change the test charge then the force will change as well.

Therefore, the forces on the charges will not be the same.

We can't determine the electric field without further information on the problem; we need the force on one of the test charges to determine the magnitude of the field.

4 0

1 year ago