Sorry i can’t help sorry good luck tho!!!!
To develop this problem we will apply the concepts related to energy conservation, in this way the change in kinetic energy must be equivalent to the change in potential energy. Finally we will obtain a speed dependent expression to find the maximum height that can be reached for the two given angles, given that the first cannon ball is fired with a speed of 1050m/s at angle of 35°.
Therefore the vertical velocity will be,
Use the law of conservation of energy to find the height
Replacing with our values,
Therefore the maximum height reached by the first ball is
The second cannon ball is fired at an angle of 90°. Hence, the maximum height reached by the second ball is,
Burning of paper is the answer
Answer:
0.45 m/s in the negative x-direction
Explanation:
From the law of conservation of momentum, the sum of initial momentum equals the sum of final momentum
Momentum, p=mv where m is the mass and v is the velocity
where is the common velocity, and are velocities of magnet moving in positive x-direction and magnet moving in negative x-direction respectively, and are masses of magnet moving in positive x-direction and magnet moving in negative x-direction respectively.
Substituting 125 g for and 85 g for , 7.33 m/s , -11.9 m/s for then
Therefore, the velocity of single unit is 0.45 m/s in the negative x-direction
Answer:
Newtons 3rd law
Explanation:
Newtons third law states; for every action, there is an equal but opposite reaction force.
The action force in this case in the foot kicking the soccer ball, but the reaction force is the ball 'kicking' back on the foot. This reaction force has the same magnitude as the action force, but opposite in direction, which is why the foot is left stinging.