Answer: a and d
Explanation: A.) the power lines themselves
B.) the wooden pole that supports the lines
C.) the rubber soles on the worker’s boots
D.) the metal tools the worker uses
E.) the wooden ladder leaning against the lines
Explanation:
The acceleration of the scooter is 2.5 m/s
Answer:
The energy of photon, ![E=8\times 10^{-15}\ J](https://tex.z-dn.net/?f=E%3D8%5Ctimes%2010%5E%7B-15%7D%5C%20J)
Explanation:
It is given that,
Voltage of anode, ![V=50\ kV=50\times 10^3\ V=5\times 10^4\ V](https://tex.z-dn.net/?f=V%3D50%5C%20kV%3D50%5Ctimes%2010%5E3%5C%20V%3D5%5Ctimes%2010%5E4%5C%20V)
We need to find the maximum energy of the photon of the x- ray radiation. The energy required to raise an electron through one volt is called electron volt.
![E=eV](https://tex.z-dn.net/?f=E%3DeV)
e is charge of electron
![E=1.6\times 10^{-19}\times 5\times 10^4](https://tex.z-dn.net/?f=E%3D1.6%5Ctimes%2010%5E%7B-19%7D%5Ctimes%205%5Ctimes%2010%5E4)
![E=8\times 10^{-15}\ J](https://tex.z-dn.net/?f=E%3D8%5Ctimes%2010%5E%7B-15%7D%5C%20J)
So, the maximum energy of the x- ray radiation is
. Hence, this is the required solution.
Answer:
W = 9.6 N
Explanation:
Given that,
Area on 1 foot, A = 0.6 m²
Pressure, P = 16 Pa
The pressure is given by force acting per unit area. So,
![P=\dfrac{F}{A}\\\\P=\dfrac{W}{A}\\\\W=16\times 0.6\\\\W=9.6\ N](https://tex.z-dn.net/?f=P%3D%5Cdfrac%7BF%7D%7BA%7D%5C%5C%5C%5CP%3D%5Cdfrac%7BW%7D%7BA%7D%5C%5C%5C%5CW%3D16%5Ctimes%200.6%5C%5C%5C%5CW%3D9.6%5C%20N)
So, the required weight is 9.6 N.
<span>Is the following sentence true or false? Newton's first law does object's mass concentration and its axis of rotation increases, its rotational inertia The bicycle wheels at rest have no angular momentum, and the bicycle will fall over easily.</span><span>
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