The most common liquid on planet earth is

Seismic waves are waves that move through the Earth as a result of an earthquake. True or false

gogolik [260]

Answer

True

Explanation.

Some parts of the earth are prompt to earthquakes, volcanic eruptions landslides and magma movements etc. All this may cause energy movements through the earth inform of a wave. These type of waves are called seismic waves.

6 0

4 years ago

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What is the resistance of a 15 ampere current with 8 volts of potential difference?

Alex Ar [27]

Answer:

Resistance in circuit = 0.53 ohm (Approx.)

Explanation:

Given:

Flow of current in circuit = 15 amp

Potential difference = 8 Volts

Find:

Resistance in circuit

Computation:

In an electrical system, resistance is a stopper of a material to electric current.

Resistance in circuit = Potential difference / Flow of current in circuit

Resistance in circuit = 8 / 15

Resistance in circuit = 0.53 ohm (Approx.)

8 0

3 years ago

What wavelength of radiation has photons of energy 2.87×x10−18 j?

Masja [62]

The energy of a photon is given by
$E=hf$
where h is the Planck constant and f is the frequency of the light.
Given the relationship between the frequency f, the wavelength $\lambda$ and the speed of light c for an electromagnetic wave:
$f= \frac{c}{\lambda}$
we can rewrite the energy of the photon as
$\lambda = \frac{hc}{E}$
and by substituting $h=6.6 \cdot 10^{-34 J}$ , $c=3 \cdot 10^8 m/s$ and $E=2.87 \cdot 10^{-18}J$ , we get the wavelength of the photon:
$\lambda = \frac{hc}{E}=6.9 \cdot 10^{-8} m = 69 nm$

4 0

3 years ago

Using .125 mass kgwhat is the velocity

agasfer [191]

Answer:

The answer is 5 meters per second.

6 0

3 years ago

Question is attached!

liberstina [14]

Answer:

For Bill to dump the water on Tim, Tim should be 7.232 meters from the tree when Bill dumps the water

Explanation:

The given height above the ground at which Bill sits on the tree branch with a bucket of water, h = 4.0 meters

The speed with which Tim is approaching the tree = 8.0 meters per second

The time , t, it will take for the bucket of water to reach the ground is given by the equation of free fall as follows;

h = 1/2·g·t²

Where;

h = Height = 4.0 m

g = The acceleration due to gravity ≈ 9.8 m/s²

t = The time

Making t the subject of the above equation gives;

t = √(h/(1/2·g))

Substituting the known values gives;

t = √(4.0 m/(1/2 × 9.8 m/s²)) ≈ 0.904 s

t ≈ 0.904 seconds

Therefore, for Bill to dump the water on Tim, it should take Tim approximately 0.904 seconds to get to the tree

The distance, d, Tim will be when it will take him 0.904 seconds to get to the tree is given from the kinematic equation of speed, s, as follows;

Distance, d = Time, t × Speed, s

Where;

d = The distance

t = The time = 0.904 s

s = The speed with which Tim is approaching the tree = 8.0 m/s

Substituting the values gives;

d = 0.904 s × 8.0 m/s = 7.232 m

Therefore, the distance Tim should be when Bill throws the water = 7.232 meters

8 0

3 years ago