21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 4, Problem 29QP
To determine
How do the large tides occur?
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Students have asked these similar questions
Why are there tides on both sides of the earth not just closer to the moon? Also why 2 tides a day not just one?
The Sun is much more massive than the Moon, but the Moon has a bigger influence on Earth's tides than the Sun. Why is this?
To model a moon in the solar system, consider a sphere with radius R
and uniform mass density p. Let gm = the acceleration due to gravity
on the surface of the sphere. Calculate gm for these values of R and p:
R = 2.0×106 m; p= 2.7x103 kg/m^3;
(in m/s^2)
OA:
OB:
1.509 2.007
OC:
2.669
OD:
3.549
OE:
OF:
4.721 6.279
OG:
8.351
OH:
1.111x101
Chapter 4 Solutions
21st Century Astronomy
Ch. 4.1 - Prob. 4.1ACYUCh. 4.1 - Prob. 4.1BCYUCh. 4.2 - Prob. 4.2CYUCh. 4.3 - Prob. 4.3CYUCh. 4.4 - Prob. 4.4CYUCh. 4 - Prob. 1QPCh. 4 - Prob. 2QPCh. 4 - Prob. 3QPCh. 4 - Prob. 4QPCh. 4 - Prob. 5QP
Ch. 4 - Prob. 6QPCh. 4 - Prob. 7QPCh. 4 - Prob. 8QPCh. 4 - Prob. 9QPCh. 4 - Prob. 10QPCh. 4 - Prob. 11QPCh. 4 - Prob. 12QPCh. 4 - Prob. 13QPCh. 4 - Prob. 14QPCh. 4 - Prob. 15QPCh. 4 - Prob. 16QPCh. 4 - Prob. 17QPCh. 4 - Prob. 18QPCh. 4 - Prob. 19QPCh. 4 - Prob. 20QPCh. 4 - Prob. 21QPCh. 4 - Prob. 22QPCh. 4 - Prob. 23QPCh. 4 - Prob. 24QPCh. 4 - Prob. 25QPCh. 4 - Prob. 26QPCh. 4 - Prob. 27QPCh. 4 - Prob. 28QPCh. 4 - Prob. 29QPCh. 4 - Prob. 30QPCh. 4 - Prob. 31QPCh. 4 - Prob. 32QPCh. 4 - Prob. 33QPCh. 4 - Prob. 34QPCh. 4 - Prob. 35QPCh. 4 - Prob. 36QPCh. 4 - Prob. 37QPCh. 4 - Prob. 38QPCh. 4 - Prob. 39QPCh. 4 - Prob. 40QPCh. 4 - Prob. 41QPCh. 4 - Prob. 42QPCh. 4 - Prob. 43QPCh. 4 - Prob. 44QPCh. 4 - Prob. 45QP
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- Must engineers take Earth’s rotation into account when constructing very tall buildings at any location other than the equator or very near the poles?arrow_forwardWhy do the heights of the tides change over the course of a month?arrow_forwardToday at the beach you see the highest of all high tides during the last month. You see the Moon in the daytime sky. What is the most likely Moon phase? Why?arrow_forward
- In order to escape planet 1, you need an escape speed of 4.71×104 m/s. Planet 2 has the same radius as planet 1 but is twice as dense as planet 1. What is the escape speed to leave planet 2? 434 m/s 9.42×104 m/s 307 m/s 6.66×104 m/sarrow_forwardOcean tides are the result of the combined gravitational effects of the Sun and Moon upon Earth. If the distance between the Moon and Earth were to increase, how would the gravitational attraction of ocean tides be affected? decrease resulting in higher tides increase resulting in higher tides decrease resulting in lower tides increase resulting in lower tidesarrow_forwardAccording to Lunar Laser Ranging experiments the average distance L M from the Earth to the Moon is approximately 3.85 × 105 km. The Moon orbits the Earth and completes one revolution in approximately 27.5 days (a sidereal month). Calculate mass of the Eartharrow_forward
- Do tides occur in the molten interior of Earth for the same reason the tides occur in the oceans?arrow_forwardWhat would Earth's surface gravity and escape speed be if the entire planet had a density equal to that of the crust (3000 kg/m³, say)?arrow_forwardWhat is the gravity of Mars, if the mass of the planet is 6.39x1023kg and the radius of the planet is 3397.2 km? What problems would there be on a mission to Mars?arrow_forward
- Tidal resonance occurs in the Earth’s ocean(s). The mean widths of the Pacific Ocean, Atlantic Ocean, and Indian Ocean are 16,000 km, 4,500 km, and 7,000 km, respectively; and the mean depth of the three oceans is 4 km. Suppose the tidal period is 12.5 hours, determine quantitatively which of the ocean(s) has/have tidal resonance.arrow_forwardThe human body is composed mostly of water. Why does the Moon overhead cause appreciably less tidal effect in the fluid compartment of your body than a 1-kg melon held over your head?arrow_forwardThe average radius of Mars is 3,397 km. If Mars completes one rotation in 24.6 hours, what is the tangential speed of objects on the planet’s surface? Round your answer to the nearest whole number.arrow_forward
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