Astronauts often undergo special training in which they are subjected to extremely high centripetal accelerations. One device ha
1 answer:
Answer:
Speed of astronaut = 38.34 m/s
Explanation:
Centripetal acceleration is given by the expression, , where v is the velocity and r is the radius.
Here centripetal acceleration is given, radius is given, we need to find velocity.
Centripetal acceleration = 98 m/s²
Radius = 15 m.
We have,
Speed of astronaut = 38.34 m/s
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Answer:
r = 9.92 mm
Explanation:
Given that,
Mass of oil drop,
It acquires 2 surplus electrons, q = +2e
Potential difference, V = 620 V
Thie potential difference is applied between the pair of horizontal metal plates the drop is in equilibrium.
We need to find the distance between the plates.
At equilibrium,
mg = qE
Since, E = V/r (r is distance between plates)
So, the distance between the plates is 9.92 mm.
The energy of the incident electron in keV is 5.51× 10—²² keV.
Capacity or ability to do work is termed energy. Energy exists in various forms. It can be in the form of mechanical, potential, thermal, kinetic, and many other forms. Joules is the SI of the energy. The potential energy of a system is defined as the energy stored due to its position. While kinetic energy is defined as the energy
stored due to its position.
Radius1 of the trajectory = 1.00 cm
Radius2 of the trajectory = 2.4 0 cm
The magnitude of the uniform magnetic field = 0.0440 T
A Uniform magnetic field is perpendicular to the trajectories.
The velocity of the incident electron is,
The energy of the incident electron is,
The energy in keV is,
1-kilo electron volt = 1000 electron volts
1 keV = 1000 eV
Therefore, the energy of the incident electron in keV is 5.51× 10—²² keV.
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