Answer:
I think B or C it won't lower so I'll go with B bc warm water is hotter than regular temp water
Answer:
Draw line perpendicular to mirror
Angle of incidence = angle between incident ray and perpendicular
Angle of reflection = angle between reflected ray and perpendicular
32 + 32 = 64
Angle of incidence = angle of reflection = 32 deg
Answer:
c) The pitch of the two sirens sounds the same to you
Explanation:
The pitch does not depend on the distance of the object from the observer.
As per the given data
pitch = frequency
Frequency = 
= 
Hence, the pitch of the two sirens remains the same for the observer.
Answer:
V = 19m/s
Explanation:
Given the following data;
Initial velocity, U = 4m/s
Acceleration, a = 0.5m/s²
Time, t = 30 seconds
To find the final velocity, we would use the first equation of motion;
V = U + at
Where;
V is the final velocity.
U is the initial velocity.
a is the acceleration.
t is the time measured in seconds.
V = 4 + 0.5*30
V = 4 + 15
V = 19m/s
Therefore, his final velocity is 19 meters per seconds.
Answer: 60.0 kg*m/s north.
Explanation: The linear momentum is a verctor, it has magnitude and direction. Also the momentun is proportional to the mass multiplier the velocity.
P=m*V ( vector)
