Answer:
Explanation:
There are four phases of work out that includes Skills, Stamina, Strength and power.
While performing phase 4 workout which is Power, resistance plays an important role. At this time one needs to push themselves harder and instead of long workout, you should go harder with short burst at maximum power.
8-12 repetitions of resistance training exercises for each group of muscle and an intensity of 40 % to 80% of single repetition is required and should be performed while doing phase 4 workout.
How would each react?
Jennifer is trying out for the soccer team and really wants to make varsity. After tryouts, she learns she is on the junior varsity team.
Carlos is struggling with math. It is his most challenging subject and he is worried about a big test tomorrow. He has time to study, but isn't sure it is worth it.
Explanation:
The given data is as follows.
Mass, m = 75 g
Velocity, v = 600 m/s
As no external force is acting on the system in the horizontal line of motion. So, the equation will be as follows.
where, = mass of the projectile
= mass of block
v = velocity after the impact
Now, putting the given values into the above formula as follows.
=
v = 0.898 m/s
Now, equation for energy is as follows.
E =
=
= 13500 J
Now, energy after the impact will be as follows.
E' =
= 20.19 J
Therefore, energy lost will be calculated as follows.
= E E'
= (13500 - 20) J
= 13480 J
And, n =
=
= 99.85
= 99.9%
Thus, we can conclude that percentage n of the original system energy E is 99.9%.
Answer:
Doubled
Explanation:
F = (kq1q2) / r^2
F and q (Either q1 or q2) are directly proportional, so double the charge would also double the electruc force between the charges.
Even though the object is weightless, it would need inertia, I.e, you pushing it or any form of transportation. So you would still have to push that 500kg to just keep it moving in space. Say if it were a planet with less gravitational force, it would be weightless.