The catcher experiences more force in her glove during a softball game than the outfielder during a softball game.
The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. A spring balance can be used to calculate the Force. The Newton is the SI unit of force.
Given that: the equation of motion is: FΔT=mΔv
Hence, Force = mass × change in velocity/time interval.
Now, during a softball game, the ball is in air more for the outfielder than the catcher. Hence, from the given equation, the catcher experiences more force in her glove during a softball game than the outfielder.
Learn more about force here:
#SPJ3
Rich
duPont Manual Highschool
Proffit
In this physics problem, by using the equation of motion, it was found that the time taken for a free falling object (under gravity and ignoring air resistance) to fall the second half of its total distance (t2) is sqrt(3) times greater than the time taken to fall the first half (t1).
This question falls under the category of Physics, and represents a common problem in the study of kinematics. To answer, we first define the two halves of the journey of the falling rock. We're given that the rock covers the first half distance in t1 time and the second half distance in t2 time. Since the falling object is under the influence of gravity (ignoring air resistance), it accelerates during its descent. Therefore, t2 > t1 or t2/t1 > 1.
A classical physics equation we can use is s = ut + 0.5at^2, where 's' represents distance, 'u' is the initial velocity, 'a' is the acceleration, and 't' is the time. Since the rock is dropped, the initial velocity 'u' is 0. Hence, the equation become 's = 0.5at^2'
Since the rock is being dropped, it falls under constant acceleration due to gravity (approximated as 9.8m/s^2). For the first half of the drop, the distance is s/2 = 0.5*g*(t1)^2, and for the second half of the drop, the distance is s/2 = 0.5*g*(t2)^2.
Solving these equations can help us find the relationship between t1 and t2. If we solve for t2 in terms of t1, keeping in mind that total distance (s) and acceleration due to gravity (g) remain the same in both cases, we obtain t2 = sqrt(3)*t1 approximately, i.e., t2/t1 = sqrt(3).
#SPJ12
Answer:
V = -39.2m/s
Explanation:
Given the following data
Time, t = 4secs
Since the rock is falling, we know that the initial velocity = 0
Acceleration due to gravity = 9.8m/s²
To find the final velocity, we would use the first equation of motion
V = U + at
Substituting into the equation, we have
V = 0 + (-9.8*4)
V = -39.2m/s
A) combustion
B) decomposition
C) replacement
or D) synthesis
Answer : The correct option for 1st blank is Decomposition and for 2nd blank is Synthesis.
Explanation :
When potassium nitrate breaks down into potassium oxide, nitrogen, and oxygen that means one bigger molecule decomposes into two or more smaller molecules. So, this an example of a decomposition reaction.
And in the opposite process that means potassium oxide, nitrogen, and oxygen are combined to form potassium nitrate means two or more small reactant combine to form a single large product. So, this an example of synthesis reaction.
Answer: The correct answer is option D.
Explanation:
Chemical reactions are defined as the reactions in which rearrangement of one or more substances gets converted to one or more different substances known as products. Energy is released in the reactions where energy of products is less than the energy of the reactants.
Nuclear reactions are the reactions in which atomic nucleus undergoes change and releases a huge amount of energy in the process. There are two types of nuclear reactions: Nuclear fusion and nuclear fission. Both the nuclear reactions releases a huge amount of energy.
From the given information above, we conclude that the correct option is Option D.