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Hatshy [7]
3 years ago
6

Fill in the blanks to complete each statement about energy in Earth’s crust. (use lower case wording only)

Physics
2 answers:
miv72 [106K]3 years ago
8 0

Answer:

stress and fault

Explanation:

yes

Naetoosmart
2 years ago
you have to add the s at the end of faults
Fiesta28 [93]3 years ago
7 0

Answer:

Stress for the first one and the second faults

Explanation:

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You’ve been in a car traveling at 80 km/hr. How many hours will it take to travel 640 km?
iren2701 [21]
I’m pretty sure it’s 8 hours
5 0
3 years ago
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Calculate the force it would take to accelerate a 50 kg bike at a rate of 3 m/s2.
Ede4ka [16]

ummmm it might be 300... i used a calculator

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4 0
3 years ago
A boat moves with a constant speed, covering 20.0m in a time of 4.0s
san4es73 [151]

Answer:

velocity = 5m/s

initial position : 0m

final position :  20 m

time = 4 s

5 0
3 years ago
What is the wavelength of an X-ray photon with energy 8.0 keV (8000 eV)? (1 eV = 1.60 × 10−19 joule.)
katrin2010 [14]

Answer:

Wavelength = 0.15 nm

Frequency = 1939.3939\times 10^{15}Hz

Explanation:

We have given photon energy E = 8 KeV = 8000 eV

In question it is given that 1eV=1.6\times 10^{-19}J

So 8000eV=1.6\times 8000\times 10^{-19}=12800\times 10^{-19}j

Plank's constant h=6.6\times 10^{-34}js

We know that photon energy is given by E=h\nu

So 12800\times 10^{-19}=6.6\times 10^{-34}\nu

\nu =1939.3939\times 10^{15}Hz

Now wavelength \lambda =\frac{c}{f}=\frac{3\times 10^8}{1939.3939\times 10^{15}}=0.0015\times 10^{-7}m=0.15nm

3 0
4 years ago
What is the kinetic energy of a toy truck with a mass of 0.75 kg and a velocity of 4 m/s? (Formula: )
Dvinal [7]

Answer: Option (b) is the correct answer.

Explanation:

Kinetic energy is the energy of an object or particle when it is in motion.

Mathematically,   Kinetic energy = \frac{1}{2}mass \times (velocity)^{2}

It is given that toy truck has mass = 0.75 kg, and velocity = 4 m/s.

Calculate the kinetic energy as follows.

           Kinetic energy = \frac{1}{2}mass \times (velocity)^{2}

                                    = \frac{1}{2}0.75 kg \times (4 m/s)^{2}

                                     = \frac{1}{2}0.75 kg \times 16 m^{2}/s^{2}

                                     = 0.75 kg \times 8 m^{2}/s^{2}

                                     =  6 kg m^{2}/s^{2}

or,       Kinetic energy = 6 joules

Thus, we can conclude that kinetic energy of toy truck is 6 J.


6 0
4 years ago
Read 2 more answers
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