Answer:
OK so ik this but what is you question?
Explanation:
Answer:
Lowering of mass of the shot has high kinetic energy which leads to covering more distance of the shot.
There is a difference in these throws because the mass of the shot decreases which increases its velocity and as a result the shot covers more distance. First, the athlete throws the shot having 16-pound weight or mass which covers 40 feet distance.
Whereas in the second throw, he uses a shot having 12-pound it covers 50 feet distance because the mass
is lower in the second throw and the athlete can easily throw the shot which covers more distance so the second shot has more kinetic energy as well as more velocity which compels it to cover more distance so we can conclude that lowering of mass leads to covering more distance of the shot.
They live half their lives in water and most of their life on land
CuCl2 will have dipole-dipole forces the strongest attraction that will be present. For CuSO4, io- dipole forces would be the strongest and for HF, hydrogen bonding would be the strongest force present. Dipole-dipole are permanent dipoles where two polar molecules interact. For ion-dipole, ions are the contributing factor of such and for hydrogen bonding, it is the bonding of hydrogen atom with a halogen.
Answer:
33.14 m/s
Explanation:
The mass of the block is 121g or .121 kg. As the bullet is lodged in the block the total mass is 121+14 = 135 g or 0.135 kg.
The frictional force that makes the block come to a stop is normal force* coefficient of friction = 0.135 * 9.8 * 0.7 = 0.9261 N
As the block comes to rest after sliding for 8.3 meters the energy it was given by the bullet is
0.135 * 9.8 * 0.7 * 8.3
= 7.69 Nm
Now this energy is provided the bullet. So the energy in the bullet was equal to
1/2 * mv² = 0.5 * 14 * v².
0.5 * 0.014 * v^2 = 0.135 * 9.8 * 0.7 * 8.3 = 7.69
=> 0.007 * v² = 7.69
=> v² = 7.69 / 0.007
=> v² = 1098.57
=> v = √1098.57
=> v = 33.14 m/s