How does centripetal force act on a satellite in orbit?
force is mass x acceleration which for orbit is mass (m) x velocity squared (v^2)divided by radius (R) above center of earth. Since there is also acceleration of gravity (g) then g = v^2/R. You can now calculate velocity of satellite to stay in orbit - it is about 17.500 mph
Does the Coriolis effect influence tides?
No, the Coriolis effect does not directly influence tides. Tides are primarily caused by the gravitational pull of the moon and sun on the Earth's oceans. The Coriolis effect does affect ocean currents and winds, but not tides.
What is the source of the centripetal force that keeps Earth in orbit around the Sun?
The centripetal force that keeps Earth in orbit around the Sun is caused by the gravitational attraction between Earth and the Sun. This force pulls Earth towards the Sun and prevents it from moving in a straight line, instead forcing it to travel in a curved path around the Sun.
How using Earth's rotation speed to escape gravity?
Earth's rotation speed doesn't affect the ability to escape Earth's gravity. Escaping Earth's gravity requires reaching a velocity of about 11.2 km/s regardless of Earth's rotation speed. Earth's rotation does provide a slight boost to the velocity required to escape in the direction of the rotation.
Why are centrifugal forces important in tides?
Centrifugal forces generated by the Earth's rotation cause a bulging effect in the oceans, creating two tidal bulges on opposite sides of the planet. This, combined with the gravitational forces from the Moon and Sun, leads to the formation of tides. The interplay between gravitational and centrifugal forces influences the timing and height of tides.
What force acts as the centripetal force for a plane?
In a plane, the centripetal force required to maintain a circular path is provided by the lift force generated by the wings. As the plane turns, the wings generate a component of lift that acts towards the center of the circle, providing the necessary centripetal force.
How does the coriolis effect apply to the movement of gyres?
The Coriolis effect influences the direction of gyres in the oceans by causing the water to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This deflection is a result of the Earth's rotation and affects the circulation patterns of ocean currents, leading to the formation of large-scale gyres.
How does Coriolis effect influence weather and climate?
The Coriolis effect deflects moving air and water masses to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This causes wind patterns to curve rather than move in straight lines, influencing global wind circulation and ocean currents. In terms of weather, the Coriolis effect helps shape large-scale atmospheric circulation patterns, influencing the formation of storms and weather systems.
In orbital motion the Angular Momentum of the system is?
In orbital motion, the angular momentum of the system is constant if there is no external torque acting on the system. This is a result of the conservation of angular momentum, where the product of the rotating body's moment of inertia and angular velocity remains constant unless acted upon by an external torque.
Is the earths rotation longer than the Moon's rotation?
The Earth rotates in 1 day. The moon takes 27.32 days to rotate.
What is the relation between angular velocities of a pair of coupled gears of different radii?
The angular velocities of a pair of coupled gears are inversely proportional to their radii. This means that the gear with a larger radius will rotate more slowly than the gear with a smaller radius. The ratio of their angular velocities is equal to the ratio of their radii.
When is total mechanical energy conserved?
Total mechanical energy is conserved in a system when no external forces, such as friction or air resistance, are acting on the system. This often occurs in idealized situations like when an object is in free fall or when no energy is lost due to non-conservative forces.
Do centripetal and centrifugal reaction constitute action-reaction pair?
No, centripetal and centrifugal reactions do not constitute an action-reaction pair. Centripetal force acts towards the center of rotation to keep an object moving in a circular path, while centrifugal force is a pseudo-force that appears to act outward on the object in the rotating frame of reference. These forces do not follow Newton's third law of motion as an action-reaction pair.
What is the period of rotation for Io?
The period of rotation for Io is approximately 1.77 Earth days. Io is tidally locked with Jupiter, meaning it takes the same amount of time to rotate on its axis as it does to orbit Jupiter.
How does the centripetal force act on a satellite?
The centripetal force acts towards the center of the circular path followed by the satellite, allowing it to maintain its orbit. In the case of a satellite orbiting Earth, the force of gravity provides the centripetal force required to keep the satellite in its orbit.
Which direction would the earth appear to spin if you could observe it from below the south pole?
If you observe the Earth from below the South Pole, it would appear to be spinning in a counterclockwise direction.
A weathervane spins with the direction of the wind due to the force exerted by the wind on its surface area. The design of the weathervane allows it to rotate freely and point in the direction the wind is coming from.
Why do you not feel the earths movement as it rotates?
We never feel motion, only change of motion. That's why it's so easy to sleep on
a jet airliner zooming along at 500 miles per hour, but not in a car that's creeping
on a rough gravel road. As long as the speed and direction don't change, we never
feel a thing.
Yes, when a rolling yoyo reaches the bottom of its cord and starts climbing back up, it needs to reverse its rotation in order to move in the opposite direction. This reversal of rotation allows the yoyo to unwind as it descends and wind back up as it ascends.
Rotation has been studied by various disciplines such as physics, mathematics, engineering, and astronomy. Physicists have extensively studied rotation in the context of mechanics and quantum mechanics, while mathematicians have developed theories to describe rotation in geometry and trigonometry. Engineers often study rotation in the design and analysis of rotating machinery, while astronomers study the rotation of celestial bodies like planets and stars.
Where is Coriolis effect weakest?
The Coriolis effect is weakest at the equator because the effect is a result of the Earth's rotation, and the rotational speed is slower at the equator compared to higher latitudes. As a result, the Coriolis force is less pronounced near the equator.
Is a revolution longer than a rotation?
No, a revolution is typically shorter than a rotation. A rotation is the movement around an axis, while a revolution is the movement around a central point or body. For example, the Earth rotates on its axis approximately every 24 hours, but it takes the Earth about 365 days to complete one revolution around the Sun.
The smallest diameter a telescope can have to distinguish the stars as two separate objects is given by the Rayleigh criterion, which is approximately D = 1.22 * λ / θ, where D is the diameter of the telescope, λ is the wavelength of light, and θ is the angular separation. Plugging in the values, D = 1.22 * 491 nm / 4.64 x 10e-6 rad ≈ 12.9 meters. So, the smallest telescope diameter would need to be approximately 12.9 meters.
What is the lightest metal that is still magnetic?
The lightest metal that is still magnetic is iron. Iron is a ferromagnetic material, meaning it can be magnetized when placed in a magnetic field. It is also relatively lightweight compared to other magnetic metals like cobalt and nickel.