Answer:
329.6 m/s
Explanation:
The bullet has a projectile motion, consisting of two separate motions:
- A horizontal motion with constant velocity
- A free fall motion (constant acceleration) in the vertical direction
The bullet misses the target vertically by 1 m: this means that 1 m is the vertical dispalcement of the bullet. So we can find the total time of the flight by using the suvat equation
where
s = 1 m is the vertical displacement
u = 0 is the initial vertical velocity
is the acceleration due to gravity
t is the time
Solving for t,
The horizontal motion is at constant speed, which is given by
where
d = 149 m is the distance covered by the bullet
t = 0.452 s is the time taken
Substituting,
D. thermometer. The warmer it gets, the more energy the particles gain and the more they move and 'expand', rising up the thermometer.
There is no chart provided in this statement. However, the current that flows within an electrically charged item is dependent on how it is arranged. There are two kinds of current and these are, parallel and circuit currents. Current that flows in parallel current is less than when it is farther away from the electric source; current that flows in a series current flows at a constant rate regardless of how far it is from the electrical source.
Answer:De acuerdo con la ley de inducción electromagnética de Faraday, la tasa de cambio del flujo magnético vinculado con la bobina es directamente proporcional a la fem inducida en la bobina.
e = - d∅ / dt
Entonces, si el cambio de flujo es mayor, la fem inducida es mayor.
¡espero haber ayudado a tener un buen día! :)
Explanation:
According to the Faraday's law of electromagnetic induction, the rate of change of magnetic flux linked with the coil is directly proportional to the induced emf in the coil.
e = - d∅ / dt
So, if the flux change is more the induced emf is more.
i hope i helped have a good day! :)
T is the time for a whole round.
centripetal acceleration = V^2/R,
20 = 40^2 / R, find R = 40^2/20 = 40*40/20 = 80 m, right?
Now, one round is L = 2*pi*R = 2*pi*80 = 160*pi
And T = L/v (distance/speed) = 160*pi/40 = 4*pi seconds, or ~ 12.57 s
