Answer:
v = 1630 m/s
T = 5.78 x 10^5 s
Explanation:
The tangential speed of the satellite can be found by requiring that the gravitational force on the satellite is equal to the centripetal force:
where
G is the gravitational constant
M=5.97 x 1024kg is the Earth's mass
m is the satellite's mass
is the Earth's radius
is the altitude of the satellite
v is the speed of the satellite
Solving for v,
And the period of the orbit is equal to the ratio between the distance covered during one revolution (the circumference of the orbit) and the speed:
So the correct answer is
v = 1630 m/s
T = 5.78 x 10^5 s
Answer:
9.23 m/s
Explanation:
Let, the initial velocity be ux.
The horizontal velocity remans the same. So, time required, t = 25/ux
For vertical component, we know,
h = uy*t + (1/2)*g*t^2 [ g is positive because ball is falling downward ]
Putting in the values, we get,
36 = 0*(25/ux) + 1/2 * 9.81 * (25/u)^2
36 = 3065.625/u^2
u^2 = 85.15625
u = 9.23
[ If there's a problem with the solution, please inform me ]
The numbers in power of 10 notation would be :
3 trillion is expressed as 3 × 10¹².
Five-thousandths (0.005) are expressed as 5 × 10⁻³.
730,000,000,000,000 is expressed as 7.3 × 10¹⁴.
0.000000000082 is expressed as 8.2 × 10⁻¹¹.
3 trillion:
In standard form: 3,000,000,000,000
In powers of 10 notation: 3 × 10¹²
Explanation: In this number, 3 is multiplied by 10 raised to the power of 12, indicating that it is 3 followed by 12 zeros. This notation is particularly useful when dealing with very large numbers like the national debt or astronomical distances.
Five-thousandths (0.005):
In standard form: 0.005
In powers of 10 notation: 5 × 10⁻³
Explanation: Here, 5 is multiplied by 10 raised to the power of -3, indicating that it is 5 divided by 1,000 (10³). This notation helps represent fractions or very small quantities.
730,000,000,000,000:
In standard form: 730,000,000,000,000
In powers of 10 notation: 7.3 × 10¹⁴
Explanation: In this case, 7.3 is multiplied by 10 raised to the power of 14, indicating that it is 7.3 followed by 14 zeros. This notation simplifies the expression of extremely large numerical values.
0.000000000082:
In standard form: 0.000000000082
In powers of 10 notation: 8.2 × 10⁻¹¹
Explanation: Here, 8.2 is multiplied by 10 raised to the power of -11, indicating that it is 8.2 divided by 100 billion (10¹¹). This notation is useful when working with very small decimal fractions, such as in scientific measurements.
Powers of 10 notation with superscripts provides a clear and concise way to represent numbers across a wide range of scales, from the macroscopic to the microscopic, making it a fundamental concept in scientific notation.
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