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Len [333]
3 years ago
6

On the Moon the acceleration due to gravity is about one sixth that on Earth. If a golfer on the Moon imparted the same initial

velocity to the ball as she does on the Earth, how much farther would the ball go?
Physics
1 answer:
swat323 years ago
6 0

Explanation:

We know that that the range of the ball on the earth

R_{earth}=\frac{v_o^2sin2\theta}{g_{earth}}

therefore, range of the ball on moon

R_{moon}=\frac{v_o^2sin2\theta}{g_{moon}}

R_{moon}=\frac{v_o^2sin2\theta}{g_{earth}/12}

therefore,

R_{moon}=6R_{earth}

Therefore, the range of ball will be 6 times on the moon than that on earth

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An eartly method of measuring the speed of light makes use of a rotating slotted wheel.
Pavel [41]

Answer:

Explanation:

Distance traveled by light = 2 x 550 m = 1100 m

time taken by light to travel this distance = 1100 / 3 x 10⁸

=  366.67 x 10⁻⁸ s

angle between two consecutive slots = 2π / 500 rad

= .004π

angular velocity of wheel = angle moved / time taken

= .004π / 366.67 x 10⁻⁸

= 1091π radian / s

b )  linear speed of a point on the edge of the wheel

= ω R , r is radius of wheel , ω is angular velocity.

= 1091π x 5 x 10⁻²

= 1712.8 m /s

4 0
4 years ago
A wave has a wavelength of 0.5 m and a frequency of 5.0 Hz. What is the speed of the wave?
mylen [45]
The correct option is (A) 2.5 m/s

Explanation:
Since,

v = fλ ---- (1)

where v = speed of the wave
f = frequency of the wave = 5 Hz
λ = wavelength of the wave = 0.5 

Plug in the value in (1):
(1) => v = 5 * 0.5
v = 2.5 m/s
7 0
3 years ago
Read 2 more answers
Find the energy released in the fission reaction¹₀n + ²³⁵₉₂U → ⁹⁸₄₀Zr + ¹³⁵₅₂Te +3(¹₀n) The atomic masses of the fission product
ikadub [295]

Fission reaction is given

¹₀n + ²³⁵₉₂U → ⁹⁸₄₀Zr + ¹³⁵₅₂Te +3(¹₀n)

The atomic masses of the fission products are 97.912735 u for ⁹⁸₄₀Zr and 134.916450 u for ¹³⁵₅₂Te. Hence, the energy released in fission reaction is 191.715 MeV.

How to find the energy released in the given fission reaction?

We know, that the atomic mass of the elements are as follows:

  • ⁹⁸₄₀Zr - 97.9120u
  • ¹³⁵₅₂Te - 134.9087u
  • ²³⁵₉₂U  - 235.0483923u
  • n = 1.008665u

In order to find the mass difference, we will calculate the initial mass and the mass of products.

The equation for the reaction:

n + ²³⁵₉₂U → ⁹⁸₄₀Zr + ¹³⁵₅₂Te +3n

Mass of initial reagents is 1.008665u + 235.0483923u = 233.052588u

Product of the reagents is 97.9120u + 134.9087u + 3(1.008665u) = 235.846773u

Now, using the formula of

E=(\triangledown m)c^2

E=(0.205815u)\frac{931.494MeV/c^2}{u} c^2=191.715MeV

Hence, the energy released in fission reaction is 191.715 MeV.

To learn more about fission reactor, refer to:

brainly.com/question/23276812

#SPJ4

4 0
2 years ago
Evidence gathered from publicly observable behavior is known as  _________ evidence.
Dmitriy789 [7]
Empirical because it is what you need to know the source of knowledge gather by observation or experimentation.
6 0
3 years ago
For an object that floats in a liquid, which of the following statements is true? Group of answer choices The specific gravity o
SVEN [57.7K]

Answer:

Explanation:

Object is Floating in a liquid

weight of object is equal to weight of displaced fluid

i.e.

\rho _oVg=\rho _mV'g

i.e.\rho _oV=mass\ of\ object

\rho _mV'=mass\ of\ liquid\ displaced

where V and V' is the volume of object and volume of object inside the liquid.

therefore mass of liquid displaced must be equal to mass of object                          

8 0
4 years ago
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