Physics, 28.11.2019 21:31 farihasy6508
Tidal forces are gravitational forces exerted on different parts of a object by a second object. their effects are particularly visible on earth's surface in the form of tides. to understand the origin of tidal forces, consider earth-moon system to consist of two spherical bodies, each with a spherical mass distribution. let re be the radius of earth, m be the mass of the moon, and g be the gravitational constant.1) earth is subject not only to the gravitational force of the moon but also to the gravitational pull of the sun. however, earth is much farther away from the sun than it is from the moon. in fact, the center of earth is at an average distance of 1.5Γ1011m from the center of the sun. given that the mass of the sun is 1.99Γ1030kg, which of the following statements is correct? a) the force exerted on earth by the sun is weaker than the corresponding force exerted by the moon. b) the force exerted on earth by the sun is stronger than the corresponding force exerted by the moon. c) the force exerted on earth by the sun is of the same order of magnitude of the corresponding force exerted by the moon.2) the occurrence of tidal forces on earth's surface is not limited to the gravitational effects of the moon. tidal forces are produced every time different parts of a object are subject to different gravitational forces exerted by a second object. therefore, tidal forces due to the gravitational effects of the sun are also present on earth's surface. what can you conclude about the relative effects of these two tidal forces on earth's surface? a) the moon exerts a stronger tidal force on earth than the sun does. b) the sun exerts a stronger tidal force on earth than the moon does. c) the moon and the sun cause tidal forces of equal magnitude.
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Physics, 22.06.2019 20:00
Which is the most accurate name for the covalent compound p2o3?
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Physics, 22.06.2019 22:30
An alarm clock has a current of 4.5 amps and a resistance of 3.2 ohms. what is the voltage in the circuit? a.1.4 volts b.0.71 volts c.14 volts d.46 volts
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Physics, 23.06.2019 02:20
3. a particle with initial velocity vβ 0=(5.85Γ103m/s)j^ enters a region of uniform electric and magnetic fields. the magnetic field in the region is bβ =β(1.35t)k^. you can ignore the weight of the particle. a. calculate the magnitude of the electric field in the region if the particle is to pass through undeflected, for a particle of charge +0.640 nc.
Answers: 2
Tidal forces are gravitational forces exerted on different parts of a object by a second object. the...
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