Answer:
a)3.86 ×10³m/s
b)4.83× 10⁷ s
Explanation:
a)
The speed that a satellite at a given radius must travel so as to orbit in the presence of gravity is given by;
where;
G is the universal gravitational constant given as 6.67 × 10⁻¹¹ N.m²/kg²
m is mass of Earth given as 5.972×10²⁴kg
r is the radius at which the satellites orbit
v is the speed of satellite
r is obtained by the sum of distance from center of Earth and height of satellite from earth
Height of satellite from earth= 11000 nautical miles
1 nautical mile=1.852 km
11000 nautical miles =?
11000*1.852 = 20372 km
1 km = 1000 m
20372 km=?
=20372000m
=2.04×10⁷ m
r= 6.38×10⁶ m +2.04×10⁷ m
r=2.68×10⁷ m
Substitute values in equation;
b)The formula for period is
where T is the period of the satellite
Substituting values
Answer:
The spheres interact with one another, and a change in one might result in a change in another. Humans (biosphere) plough the fields with agricultural machinery made of geosphere materials, while the atmosphere (hydrosphere) provides precipitation to water the plants. The biosphere is home to all living organisms on the earth.
Explanation:
don't ask qestionsmm
Answer: Addition of
salt bridge
To generate a standard
electromotive force, an addition of salt bridge is essential to help maintain
electrical neutrality within the internal circuit and prevent the cell from
rapidly running its reaction to equilibrium.
In addition, salt bridge contains potassium
sulfate, an inert electrolyte where its ions will diffuse into the separate half-cells
to stabilize the building charges at the electrodes and produce electricity.
The S.I. unit for the measure of the pressure is the Pascal (Pa). 1 Pascal corresponds to
We can convert the number given by the problem into Pascal:
And since
, we have
Answer:
the Restoring force causes the vibrating object to go slower going further from the equilibrium position and to go faster as it approaches the equilibrium position. the restoring force is what is causing the vibration The tension force comes from the string tugging on the bob of the pendulum.
Explanation: