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IRISSAK [1]
3 years ago
7

A spacecraft is launched from Earth toward the moon. Where will the spacecraft be when the gravitational forces acting on it are

equal? closer to Earth than to the moon because the moon has greater mass than Earth closer to the moon than to Earth because the moon has greater mass than Earth closer to Earth than to the moon because Earth has greater mass than the moon closer to the moon than to Earth because Earth has greater mass than the moon
Physics
1 answer:
Gnoma [55]3 years ago
5 0

Answer:b

Explanation:

Itwm

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If a capacitor has opposite 4.9 μc charges on the plates, and an electric field of 1.6 kv/mm is desired between the plates, what
Temka [501]
Q = 4.6E-6 C 
<span>E = 2.6 kV/mm = 2600 kV/m = 2600000 V/m </span>
<span>ε = 8.85E-12 F/m </span>
<span>E = Q/Aε </span>
<span>A = Q/Eε = 4.6E-6/(2600000*8.85E-12) = 0.2 m^2</span>
3 0
4 years ago
A skull believed to belong to an ancient human being has a carbon-14 decay rate of 5.4 disintegrations per minute per gram of ca
larisa86 [58]

Answer:

9.43*10^3 year

Explanation:

For this question, we ought to remember, or know that the half life of carbon 14 is 5730, and that would be vital in completing the calculation

To start with, we use the formula

t(half) = In 2/k,

if we make k the subject of formula, we have

k = in 2/t(half), now we substitute for the values

k = in 2 / 5730

k = 1.21*10^-4 yr^-1

In(A/A•) = -kt, on rearranging, we find out that

t = -1/k * In(A/A•)

The next step is to substitite the values for each into the equation, giving us

t = -1/1.21*10^-4 * In(5.4/15.3)

t = -1/1.21*10^-4 * -1.1041

t = 0.943*10^4 year

8 0
4 years ago
Khalad is measuring the amplitude of a wave. What can be known about this wave?
GalinKa [24]
It is B) transverse wave
6 0
3 years ago
Read 2 more answers
Which of the following best describes the shape of Earth's orbit?
nikklg [1K]

Elliptical, as shown by most projections


4 0
3 years ago
The world record for a woman running a marathon is approximately 2.25 hours. If a marathon's distance is 26.2 miles (42164.81 me
netineya [11]

Answer:

11.6mph South East

Explanation:

Given parameters:

Time = 2.25hrs

Displacement  = 26.2miles south east

Unknown:

Velocity = ?

Solution:

Velocity is the displacement divided by the time taken. It is a vector quantity with both magnitude and direction.

 Now;

       Velocity  = \frac{displacement}{time taken}

       Velocity  = \frac{26.2}{2.25}   = 11.6mph South East

8 0
3 years ago
Read 2 more answers
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