Answer:
K.E = 100 J
Final P.E = 100 J
Explanation:
The kinetic energy of any object can be given by the following formula:

where,
K.E = Kinetic Energy
m = mass of ball = 2 kg
v = speed of ball
Initially, v = 10 m/s. Therefore, the initial K.E is given as:

<u>K.E = 100 J</u>
Now, at the highest point the K.E of the ball becomes zero. because the ball stops for a moment at the highest point and its velocity becomes zero. So, from Law of Conservation of energy:
Initial K.E + Initial P.E = Final K.E + Final P.E
Initial P.E is also zero due to zero height initially.
K.E + 0 = 0 + Final P.E
<u>Final P.E = 100 J</u>
Answer:

Explanation:
GIVEN,
mass of electron = 9.1 x 10 kg
Radius = 5.3 x 10 m
pulling force = 8.2 x 10 N
Required centripetal for (Fe) for circular motion will be provided with electrical force (F)




ω = 4.12 x 10¹⁶ rad/s


Of these options the one which best answers the question is 'Use whatever professionals claim to use.'
It is not that professional recommendations should not be consired or valued. The reason you should not just use whatever professionals claim to use is that their needs, as professionals, may be very different from your own. In order to know whether your own needs will be met you need to know what those needs are and whether the product meets those needs. All of the other options given would help you to figure this out, but the testimony of professionals would not.
True, p1/t1=p2/t2. Pressure is related to temperature at which it boils so pressure does affect the boiling point.
In order to find the displacement of something, you can calculate it by subtracting the initial distance from the final distance.
7-5 =2
so the mouse would’ve walked a displacement of 2cm