Answer:
directly proportional to the square of its speed.
Explanation:
;)
Explanation:
if two individual forces are of equal magnitude and opposite direction, then the force is said to be balanced. when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
I like to just keep writing them over and over on a page also if you remember them just before the exam than as soon as you start write them on the front of your test so you don’t forget them.
Hope this helps.
Answer:
The voltage of the generator is 88.53volts
Explanation:
The voltage across the RLC AC circuit will be the voltage across the generator. It is expressed as
V = IZ and
Z² = R² + (Xl-Xc)²
Z = √R² + (Xl-Xc)² where;
Z is the impedance that oppose the flow of current in the resistor, capacitor and inductor in the circuit
I is the total current = 0.312A
R is the resistance in the circuit = 280ohms
Xl is the inductive reactance = 508ohms
Xc is the capacitive reactance = 315ohms
Substituting to this parameters to get the impedance Z we have;
Z = √280²+(508-315)²
Z = √208²+(193)²
Z = √80,513
Z = 283.75ohms
The voltage V of the generator = current × impedance
V = 0.312×283.75
V = 88.53Volts
The voltage if the generator is 88.53volts
<u>Answer:</u>
Takeoff speed of Kangaroo = 12.91 m/s
<u>Explanation:</u>
The distance reached by Kangaroo = 10 meter
Angle at which it jumps = 18°
The motion of Kangaroo is like a projectile, the distance traveled is the range of projectile.
Range of projectile = Time taken for the projectile to reach ground* Horizontal velocity
Time taken for the projectile to reach ground:
Time taken = Two times of the time taken for the projectile to reach maximum height
Time taken for the projectile to reach maximum height = Vertical speed / Acceleration = u sin θ/g
Time taken for the projectile to reach ground = 2 u sin θ/g
So Range of projectile = 
We have Range = 10 meter, θ = 18⁰
Substituting
Takeoff speed of Kangaroo = 12.91 m/s
