Sound reverberation is created when sound or signal is reflected.
The conclusion is; Cathy's dad has gone fishing.
<h3>What are conclusions in conditional statements?</h3>
A conditional statement is a statement with a hypothesis which is then followed by a conclusion.
A conditional statement has two parts; "if" and "then"
The hypothesis is “if,” part of a conditional statement.
The conclusion is the “then,” part of a conditional statement.
Considering the given conditional statements:
1. If it's Saturday, then Cathy's dad goes fishing.
2. If it's Saturday, then Cathy's dad goes fishing.
Since the if part is true, the conclusion will be, Cathy's dad has gone fishing.
In conclusion, a conditional statement consists of a hypothesis and a conclusion.
Learn more about conditional statements at: brainly.com/question/21170
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#1
for the block of mass 5 kg normal force is given as
friction force is given as
Net force is given as
now we know that
#2
Normal force is given as
now we know that
as object moves with constant velocity
now for coefficient of friction we can use
#3
net force upwards is given as
mass is given as
now as per newton's law we can say
#4
As we know that when block is sliding on rough surface
part a)
net force = applied force - frictional force
part b)
for coefficient of friction we can use
here normal force is given as
now we have
#5
if an object is initially at rest and moves 20 m in 5 s
so we can use kinematics to find out the acceleration
now net force is given as
#6
an object travelling with speed 25 m/s comes to stop in 1.5 s
so here acceleration of object is given as
now the force is gievn as
Electric force occurs between positive and negative electric charge. It can be calculated with formula 
where F is force, Q1 and Q2 are charges, A is area of object usually ball (
) because we describe charges as points in space like electrons and protons, 
is a natural dielectric constant of empty space or vacuum (
) and 
also known as relative dielectric variable.
There are two types of the force:
1. Attractive electric force
2. Repulsive electric force
Attractive electric force occurs between positively and negatively charged objects while repulsive occurs between equally charged objects for eg. (positive and positive will repulse).
Answer:
θ' = 50°
Explanation:
Given:
- First ball launched with angle θ = 40 °
- The both balls land at the same spot on green
- Both balls hit with same velocity
Find:
what is the launch angle for the second golfer θ'.
Solution:
- We are given that both balls land at the same horizontal distance from initial position. So we can say that the range of projectile motion for both balls is same.
- The range of projectile motion as a function of θ is given as:
Range = v^2*sin (2*θ) / g
Where, v: The initial striking velocity
g: The gravitational acceleration.
- Since, the Ranges for both balls is same we have:
v^2*sin (2*θ) / g = v^2*sin (2*θ') / g
- Velocity v and g are constants and canceled out:
sin (2*θ) = sin (2*θ')
- Plug θ = 40° :
sin ( 80 ) = sin (2*θ')
arcsin ( sin ( 80 ) ) = 2*θ'
2*θ' = (80 , 180 - 80)
θ' = (40° , 100/2 = 50°)
- Hence, the second ball is launched with a different launch angle θ' = 50°.
