With the assumption that the acceleration due to gravity is 9.8m/s^2 and that the upwards direction is positive:
We can use the kinematics equation,
, where v is velocity, a is acceleration, and S is displacement. Initial velocity is given as 5.4 m/s. We know final velocity is 0, because we want to know the displacement at the peak of the tennis ball's motion. Acceleration is -9.8m/s^2. Just plug in these values to find the displacement:
So the tennis ball goes 1.51 meters upwards.
Answer:
its the teal/second from the left one
Explanation:
I personally think that finding out how the hole in the ozone layer formed can use science as a method of inquiry.
Answer:
The correct option is:
B) Kinetic Energy
Explanation:
We know that if a body is placed at a certain height, it possesses Potential Energy, which is represented by 'mgh'. In this case, when the skydiver is present in the plane, before jumping, he has potential energy as he is at height 'h'.
As Kinetic energy is given as '(1/2)mv²' dependent on velocity of the object, when the skydiver jumps of the plane, his height starts decreasing, which decreases his Potential Energy. As energy can neither be created or destroyed, but is converted to one form or another, all this Potential energy starts to convert into Kinetic energy. As Potential Energy decreases with distance, Kinetic energy increases. Hence, line B represents Kinetic Energy.
Answer:
(a) 2.5 cm
(b) Yes
Solution:
As per the question:
Mass of Uranium-235 ion, m =
Mass of Uranium- 238, m' =
Velocity, v =
Magnetic field, B = 0.250 T
q = 3e
Now,
To calculate the path separation while traversing a semi-circle:
The radius of the ion in a magnetic field is given by:
R =
Now,
By putting suitable values in the above eqn:
(b) Since the order of the distance is in cm, thus clearly this distance is sufficiently large enough in practical for the separation of the two uranium isotopes.