Lab #2-Nour Houda Righi

q1

II Review The New Horizons mission to Pluto had the fastest launch speed of any space probe-16.26 km/s. Part A Assuming this speed was achieved at negligible altitude compared with Earth's radius, find New Horizons' speed when it crossed the Moon's orbit, Express your answer with the appropriate units. HA Value Units Request Answer Submit

QUESTION 2 A medium earth orbit satellite is orbiting around the earth at an elevation of 19500 kilometers above the surface of the earth. What is its orbital speed (km/s)? Express answer in four decimal places. No need to include the unit.

Pls pls solve three sub-parts amd complete exact question pls

q21

I. Comet Hale-Bopp The orbits of planets and some comets about the Sun are ellipses, with the Sun at one focus. The aphelion of a planet is its greatest distance from the Sun, and the perihelion is its shortest distance. The mean distance of a planet from the Sun is the length of the semimajor axis of the elliptical orbit. See the illustration.   1. Research the history of Comet Hale-Bopp on the Internet. In particular, determine the aphelion and perihelion. Often these values are given in terms of astronomical units. What is an astronomical unit? What is it equivalent to in miles? In kilometers? What is the orbital period of Comet Hale-Bopp? When will it next be visible from Earth? How close does it come to Earth?   2. Find a model for the orbit of Comet Hale-Bopp around the Sun. Use the x-axis as the major axis.   3. Comet Hale-Bopp has an orbit that is roughly perpendicular to that of Earth. Find a model for the orbit of Earth using the y-axis as the major axis.   4. Use a graphing…

4 Haley's Comet Haley's Comet closest approach to the Sun is within 0.570 A.U., and its orbital period is 75.6 years. Problem 4.1. What is the semi-major axis of the comet's orbit? Problem 4.2. How far from the sun will Haley's comet travel before it starts its return journey?

What happens to the orbital velocity of an object revolving around Earth if we reduce its height to one-fourth of the original one? A. The magnitude of the orbital velocity will be quadrupled. B. The magnitude of the orbital velocity will be doubled. C. The magnitude of the orbital velocity will be reduced by a factor of 4. D. The magnitude of the orbital velocity will be halved. Determine the GPE of a 300kg-object that is 2700km above Jupiter. Mass of Jupiter = 1.898 × 10^27 kg and radius of Jupiter is 69,911 km. A. 3.25 x 10^11 J B. 4.11 x 10^13 J C. 5.23 x 10^11 J D. 1.41 x 10^13 J The handwriting or solutions please make it clear (readable) please thank you

Please solve This multiple choice questions correctly in 15 minutes

Problem 10:  You are a scientist exploring a mysterious planet. You have performed measurements and know the following things: •The planet has radius d.•It is orbiting his star in a circular orbit of radius b.•It takes time T to complete one orbit around the star.•The free-fall acceleration on the surface of the planet is a.  a)Derive an expression for the mass MS of the star in terms of b, T, and G the universal gravitational constant.

question 2a please

S6