For this case, the first thing you should do is define a reference system.
Once the system is defined, we must follow the following steps:
1) Do the sum of forces in a horizontal direction
2) Do the sum of forces in vertical direction
The forces will be balanced if for each direction the net force is equal to zero.
The forces will be unbalanced if for each direction the net force is nonzero.
Answer:
Add the forces in the horizontal and vertical directions separately.
The answer is C!! 100 kilometers per hour is an average speed.
Answer:
1. Convection (Moving Water)
2. Radiation (Sunlight)
3. Conduction (Direct Contact)
4. Convection or Radiation (Most Likely Convection) (Moving Air/Sunlight)
5. Convection (Moving Air)
6. Radiation (Feeling Heat)
Explanation:
See Above
To solve this problem, it is necessary to apply the concepts related to the work done by a body when a certain distance is displaced and the conservation of energy when it is consumed in kinetic and potential energy mode in the final and initial state. The energy conservation equation is given by:
Where,
KE = Kinetic Energy (Initial and Final)
PE = Potential Energy (Initial and Final)
And the other hand we have the Work energy theorem given by
Where
W= Work
F = Force
D = displacement,
PART A) Using the conservation of momentum we can find the speed, so
The height at the end is 0m. Then replacing our values
Deleting the mass in both sides,
Re-arrange for find 
PART B) Applying the previous Energy Theorem,
Solving for d
Answer:
92.397amu
Explanation: The exact amu of the mystery element is obtained by multiplying the relative abundance of each individual isotope by its respective amu and then summing the results.
The sum of the total relative abundance for all the isotopes should be 100%.
However, the relative abundance of the isotope with 95.502amu is not given; therefore to obtain it we subtract the sum of the known relative abundances from 100% as follows:
Relative abundance of isotope with 95.502amu = 100-(23.63+30.53) = 42.84%
