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Maardava V

Numerade Educator

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Educator Statistics

Numerade tutor for 4 years
293 Students Helped

Maardava's Quick Ask Videos

01:26
Physics 101 Mechanics

in graph of force vs acceleration to find the mass what does the
y intercept represent ?
how can we have a force if the acceleration is zero?
06:35
Physics 101 Mechanics

Technically a geosynchronous satellite is one that orbits the
Earth once per sidereal day, which is 23.93 hours, not 24 hours.
Why is this? And how much difference will it make to the altitude
of the satellite?
02:02
Physics 101 Mechanics

the electric potential in a region of space varies as V = b y/(a^2 + y^2). determine E
02:33
Physics 101 Mechanics

A transistor radio operates by means of a 9.00 V battery that supplies it with 0.0500 A of current.

a) What is the power of the radio in watts?
b) The battery cost is unfortunately $9.00 per kilowatt-hour.
The same radio, by means of a converter, is plugged into a household circuit by a homeowner who pays 5.00¢ per kilowatt-hour.
Compute the cost of operating the radio for 300 hours on battery power, and then compute the cost using house current.
04:09
Physics 101 Mechanics

A 7.3x10^3 kg space vehicle and its empty 6.8x10^2 kg booster unit are moving together through space at 370 m/s. An explosion lasting 2.2 s is used to separate the two parts. If the speed of the space vehicle after the separation is increased to 430 m/s, what impulse acted on the booster unit?
01:47
Physics 101 Mechanics

A thermistor is a device whose resistance varies with
temperature. At 20∘C a thermistor's resistance is 10.0 kΩ. When
connected to a 1.2 V battery, the current through the thermistor
increases by 80 μA as the temperature increases to 30∘C.
What is the thermistor's resistance at this higher
temperature?
Express your answer with the appropriate units.
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