Answer:
acceleration: 5.48 m/s²
time taken: 9.3 seconds
Given:
- mass: 1200 kg
- force: 6572 N
- initial velocity: 15 m/s
- final velocity: 66 m/s
<u>using the formula's</u>:
<u>answer 1</u>:
// rounded to nearest hundredth //
<u>answer 2</u>:
// rounded it to nearest tenth //
Answer : The correct options are, V=IR, I=V/R and R=V/I
Explanation :
Ohm's law : It is defined as an electric current is directly proportional to voltage and inversely proportional to resistance.
Formula of Ohm's law :
Or,
or,
where,
R = resistance of a circuit
V = voltage of circuit
I = current flowing in a circuit
Hence, the correct options are, V=IR, I=V/R and R=V/I
It will decrease
When the temperature increased, the rate will decrease
Answer:
Phase changes can be reversed
Answer:
2.55 m
Explanation:
The motion of the dancer is the motion of a projectile, which consists of 2 independent motions:
- A uniform motion (constant velocity) along the horizontal direction
- A uniformly accelerated motion (constant acceleration) along the vertical direction
The horizontal range of a projectile can be found by using the equations of motions along the two directions, and it is given by:
where
v is the intial velocity
is the angle of projection
is the acceleration due to gravity
For the dancer in this problem, we have:
v = 5 m/s
Therefore, the horizontal range is: