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Questions in physics

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] The table below contains electrical quantities and applicable basic electrical units. Write only the correct unit or the electrical quantity next to the applicable question number (1.1.1-1.1.10) on the drawing paper. | QUANTITY | UNIT | | :--------- | :----- | | Capacitance | 1.1.1 | | Impedance | 1.1.2 | | Flux | 1.1.3 | | Energy | 1.1.4 | | Inductance | 1.1.5 | | 1.1.6 | Ampere | | 1.1.7 | Hertz | | 1.1.8 | Watt | | 1.1.9 | Lux | | 1.1.10 | Tesla | (10 x 1) (10)

[Done] Which two phrases describe the motion of all the outer planets? A. no rotation, slow revolution B. fast rotation, slow revolution C. north-to-south rotation, slow revolution D. no rotation, opposite revolution

[Done] The electric field strength between the plates of a simple air capacitor is equal to the voltage across the plates divided by the distance between them. When a voltage of 77.9 V is put across the plates of such a capacitor an electric field strength of [tex]$1.7 \frac{ kV }{ cm }$[/tex] is measured. Write an equation that will let you calculate the distance [tex]$d$[/tex] between the plates. Your equation should contain only symbols. Be sure you define each symbol.

[Done] You will drop the bottle/water mass so that it hits the lever at different speeds. Since an object in free fall is accelerated by gravity, you need to determine the heights necessary to drop the bottle to achieve the speeds of [tex]$2 m / s , 3 m / s , 4 m / s , 5 m / s$[/tex], and [tex]$6 m / s$[/tex]. Use the equation [tex]$H t=\frac{v^2}{2 g}$[/tex] to calculate the height, where [tex]$H t$[/tex] is the height, [tex]$v$[/tex] is the speed (velocity), and [tex]$g$[/tex] is the gravitational acceleration of [tex]$9.8 m / s ^2$[/tex]. Record these heights in Table B. To achieve a speed of [tex]$2 m / s$[/tex], the bottle must be dropped at [$\square$] m. To achieve a speed of [tex]$3 m / s$[/tex], the bottle must be dropped at [$\square$] m. To achieve a speed of [tex]$4 m / s$[/tex], the bottle must be dropped at [$\square$] m. To achieve a speed of [tex]$5 m / s$[/tex], the bottle must be dropped at [$\square$] m. To achieve a speed of [tex]$6 m / s$[/tex], the bottle must be dropped at [$\square$] m.

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] Which two phrases describe the motion of all the outer planets? A. no rotation, slow revolution B. fast rotation, slow revolution C. north-to-south rotation, slow revolution D. no rotation, opposite revolution

[Done] The electric field strength between the plates of a simple air capacitor is equal to the voltage across the plates divided by the distance between them. When a voltage of 77.9 V is put across the plates of such a capacitor an electric field strength of [tex]$1.7 \frac{ kV }{ cm }[/tex] is measured. Write an equation that will let you calculate the distance [tex]$d$[/tex] between the plates. Your equation should contain only symbols. Be sure you define each symbol.

[Done] When you accelerate, the size of the front tire patch becomes Select one: A. nonexistent B. none of these C. larger D. smaller

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?