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3 years ago

Water raises a boat once every 3.0 seconds. What is the frequency (f) of the waves passing the boat?

Physics

1 answer:

Goshia [24]3 years ago

6 0

Answer:

I think its A

Explanation:

if its every 3 seconds wouldnt it be 3.0 Hz

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Why is the force of gravity on your body weaker on the Moon than on the Earth?

andrezito [222]

Answer:

The moon’s gravity is weaker than the earth gravity due to the smaller in size as compared to the earth. As there is no atmosphere present on the moon gravity, so there are fewer chances of withstanding temperature.

Please mark as brainliest

4 0

3 years ago

The rectangular plates in a parallel-plate capacitor are 0.063 m x 5.4 m. A distance of 3.5 x 10^-5m separate the plates. The pl

Aleks04 [339]

The capacitance of the capacitor is $1.8\cdot 10^{-9}F$

Explanation:

The capacitance of a parallel-plate capacitor is given by the equation

$C=\frac{k\epsilon_0 A}{d}$

where

k is the dielectric constant of the medium

$\epsilon_0 = 8.85\cdot 10^{-12} F/m$ is the vacuum permittivity

A is the area of the plates

d is the separation between the plates

For the capacitor in this problem, we have:

k = 2.1 is the dielectric constant

$d=3.5\cdot 10^{-5}m$ is the separation between the plates

$A=0.063m \cdot 0.054m = 0.0034 m^2$ (I assumed that 5.4 m is a typo, since it is not a realistic size for the side of the plate)

Therefore, the capacitance of the capacitor is

$C=\frac{(2.1)(8.85\cdot 10^{-12})(0.0034)}{3.5\cdot 10^{-5}}=1.8\cdot 10^{-9}F$

Learn more about capacitors:

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5 0

3 years ago

What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 29.0 km/h and the co

bazaltina [42]

Answer:

Explanation:

Let the radius of track required be r.

Centripetal force will be provided by frictional force which will be equal to

m v²/ r

Frictional force = mg x μ

m v² /r = mg μ

r = v² / μ g =

v = 29 km /h = 8.05 m /s

r =( 8.05 x 8.05 ) /( .32 x 9.8 ) = 20.66 m

5 0

3 years ago

A suspension bridge with weight uniformly distributed along its length has twin towers that extend 65 meters above the road surf

Fynjy0 [20]

Answer:

16.25 m

Explanation:

we know that the equation pf parabola

$y=kx^2$

from bellow figure the coordinate of parabola is (600,65) that is y=600 and x=65

putting the the value of y and x in the equation of parabola

$65=k600^2$

k=0.0001805

now the equation is

$y=0.0001805x^2$

we have to find the value of y at x=300m

so $y=0.0001805\times 300^2$

y=16.25 m

4 0

3 years ago

Find the expression for the displacement covered in nth or in last one second

Natali [406]

Answer:

Snth = u + a/2 ( 2n - 1)

Explanation:

Do you need explanation based on graph, integration or other method?

3 0

3 years ago