b) Equal to 243 N.
Explanation:
The total force acting on the car in the opposite direction including the road friction and air resistance is equal to 243 N.
This is in conformity with newton's third law of motion.
Newton's third law of motion states that "action and reaction are equal and opposite in direction. "
- The action force is that of the pull by Harry acting on the car.
- The reaction force is in the opposite direction.
- Both action and reaction force equal and opposite and magnitude and direction
learn more:
Newton's laws brainly.com/question/11411375
#learnwithBrainly
Organization
Growth and development
Response to a stimulus
Homeostasis
Energy
Explanation:
Molecular mass is defined as the sum of atomic masses of all the atoms present in a given compound.
For example, molecular mass of is as follows.
=
=
= (12 + 4) g/mol
= 16 g/mol
Hence, the molecular mass of is 16 g/mol.
Therefore, we can conclude that the sum of the atomic masses of all the atoms in a formula for a covalent compound is the molecular mass.
Answer:
?
Explanation:
sorry don't speak this language
Answer:
Velocity of the fish relative to the water when it hits the water = 14.32 m/s along 77.91° below horizontal.
Explanation:
Vertical motion of fish:
Initial speed, u = 0
Acceleration, a = 9.81 m/s²
Displacement, s = 10 m
We have equation of motion, v² = u² + 2as
Substituting
v² = 0² + 2 x 9.81 x 10 = 196.2
v = 14 m/s
Final vertical speed = 14 m/s
Final horizontal speed = initial horizontal speed = 3 m/s
Final velocity = 3 i - 14 j m/s
Magnitude
Direction
Velocity of the fish relative to the water when it hits the water = 14.32 m/s along 77.91° below horizontal.