Answer:
-450 m/s
Explanation:
Momentum is conserved.
p₀ = p
0 = (1.5 kg) (1.5 m/s) + (0.005 kg) v
v = -450 m/s
Answer
given,
mass of satellite = 545 Kg
R = 6.4 x 10⁶ m
H = 2 x 6.4 x 10⁶ m
Mass of earth = 5.972 x 10²⁴ Kg
height above earth is equal to earth's mean radius
a) satellite's orbital velocity
centripetal force acting on satellite = ![\dfrac{mv^2}{r}](https://tex.z-dn.net/?f=%5Cdfrac%7Bmv%5E2%7D%7Br%7D)
gravitational force = ![\dfrac{GMm}{r^2}](https://tex.z-dn.net/?f=%5Cdfrac%7BGMm%7D%7Br%5E2%7D)
equating both the above equation
![\dfrac{mv^2}{r} = \dfrac{GMm}{r^2}](https://tex.z-dn.net/?f=%5Cdfrac%7Bmv%5E2%7D%7Br%7D%20%3D%20%5Cdfrac%7BGMm%7D%7Br%5E2%7D)
![v = \sqrt{\dfrac{GM}{r}}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B%5Cdfrac%7BGM%7D%7Br%7D%7D)
![v = \sqrt{\dfrac{6.67 \times 10^{-11}\times 5.972 \times 10^{24}}{2 \times 6.4 \times 10^6}}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B%5Cdfrac%7B6.67%20%5Ctimes%2010%5E%7B-11%7D%5Ctimes%205.972%20%5Ctimes%2010%5E%7B24%7D%7D%7B2%20%5Ctimes%206.4%20%5Ctimes%2010%5E6%7D%7D)
v = 5578.5 m/s
b) ![T= \dfrac{2\pi\ r}{v}](https://tex.z-dn.net/?f=T%3D%20%5Cdfrac%7B2%5Cpi%5C%20r%7D%7Bv%7D)
![T= \dfrac{2\pi\times 2\times 6.4 \times 10^6}{5578.5}](https://tex.z-dn.net/?f=T%3D%20%5Cdfrac%7B2%5Cpi%5Ctimes%202%5Ctimes%206.4%20%5Ctimes%2010%5E6%7D%7B5578.5%7D)
![T= \dfrac{2\pi\times 2\times 6.4 \times 10^6}{5578.5}](https://tex.z-dn.net/?f=T%3D%20%5Cdfrac%7B2%5Cpi%5Ctimes%202%5Ctimes%206.4%20%5Ctimes%2010%5E6%7D%7B5578.5%7D)
T = 14416.92 s
![T = \dfrac{14416.92}{3600}\ hr](https://tex.z-dn.net/?f=T%20%3D%20%5Cdfrac%7B14416.92%7D%7B3600%7D%5C%20hr)
T = 4 hr
c) gravitational force acting
![F = \dfrac{GMm}{r^2}](https://tex.z-dn.net/?f=F%20%3D%20%5Cdfrac%7BGMm%7D%7Br%5E2%7D)
![F = \dfrac{6.67 \times 10^{-11}\times 545 \times 5.972 \times 10^{24} }{(6.46 \times 10^6)^2}](https://tex.z-dn.net/?f=F%20%3D%20%5Cdfrac%7B6.67%20%5Ctimes%2010%5E%7B-11%7D%5Ctimes%20545%20%5Ctimes%205.972%20%5Ctimes%2010%5E%7B24%7D%20%7D%7B%286.46%20%5Ctimes%2010%5E6%29%5E2%7D)
F = 5202 N
Answer:
A.model the reflection of a light wave
The Wave Model of Light Toolkit provides teachers with standards-based resources for designing lesson plans and units that pertain to such topics as the light's wavelike behaviors, wave-particle duality, light-wave interference, and light polarization
B. .model the absorption of a light wave
The simplest model is the Drude/Lorentz model, where the light wave makes charged particle oscillate while the particle is also being damped by a force of friction (damping force)
A mirror provides the foremost common model for reflective light wave reflection and generally consists of a glass sheet with a gold coating wherever the many reflections happen. Reflection is increased in metals by suppression of wave propagation on the far side their skin depths
C.model the transmimssion of a light wave
The Wave Model describes how light propagates in the same way as we model ocean waves moving through the water. By thinking of light as an oscillating wave, we can account for properties of light such as its wavelength and frequency. By including wavelength information, the Wave Model can be used to explain colors.
Explanation:
The answer will be
(1) correct
(2) correct
(3) the force of the soccer ball on the net
(4) Will not change
Hope this help