Answer:
I think the Bulb No. 2 will stop emitting light if the bulb No. 1 burns out.
Answer:
Sarah is right
Explanation:
This is an exercise that differentiates between scalars and vectors.
A scalar is a number, instead a vector is a number that represents the module in addition to direction and sense.
In this case, the distance (scalar) traveled is a number, which is why it is worth 1500m, but the displacement is a vector and since the point where it leaves is the same point where the vector's modulus arrives is zero, so the DISPLACEMENT VECTOR is zero
consequently Sarah is right
Answer:
![v'_2=3V](https://tex.z-dn.net/?f=v%27_2%3D3V)
Explanation:
From the question we are told that:
Bowling ball Speed ![v_1=5 m/s](https://tex.z-dn.net/?f=v_1%3D5%20m%2Fs)
Beach ball Speed ![v_2=2 m/s](https://tex.z-dn.net/?f=v_2%3D2%20m%2Fs)
Let The Mass be equal i.e
![M_1=M_2](https://tex.z-dn.net/?f=M_1%3DM_2)
Therefore
Generally the equation for Velocity of beach ball after collision
is mathematically given by
Since Velocity is Vector Quantity
Therefore
![v'_2=v_1-v_2](https://tex.z-dn.net/?f=v%27_2%3Dv_1-v_2)
![v'_2=5-2](https://tex.z-dn.net/?f=v%27_2%3D5-2)
![v'_2=3V](https://tex.z-dn.net/?f=v%27_2%3D3V)
Let t=time to reach the ground=8 secs, g= acceleration of gravity. The speed v on reaching the ground is gt=8g=78.4 m/s where g=9.8 m/s/s approx.