The circumference of a circle is 2*pi*r=C so plugging in numbers we have
12pi= 2*pi*r so solving for r gives 12pi/2pi=r which gives 6=r so the radius of the circle is 6 meters since diameter is just 2*r this gives 2*r =12 meters so
Diameter = 12meters
Answer:
b. when the body converts a nutrient to another substance, there is no effect on mass balance.
Explanation:
The law of mass balance states that the mass stays the same in any chemical reaction, that is the reason why a nutrient in human body transforms to another substance like another substance, into muscles (that has mass), a body fluid ( that has mass) or another substance, but the total mass will keep the same, just in a different shape, nature or state.
Answer:
0.146 m/s
Explanation:
We can see it in the pic.
Pitch
Explanation:
The pitch of a sound wave is the perceived frequency of a sound wave.
The quality of sound that makes it discernible to the ear is the pitch.
- Sound wave is a longitudinal wave that is transmitted by series of rarefaction and compression.
- Pitch helps to distinguish between the different sound qualities.
- Pitch is how high or low sound is perceived.
learn more:
Pitch brainly.com/question/9772227
Sound wave brainly.com/question/2845448
#learnwithBrainly
Answer:
70.6 mph
Explanation:
Car A mass= 1515 lb
Car B mass=1125 lb
Speed of car B is 46 miles/h
Distance before locking, d=19.5 ft
Coefficient of kinetic friction is 0.75
Initial momentum of car B=mv where m is mass and v is velocity in ft/s
46 mph*1.46667=67.4666668 ft/s
Initial momentum of car A is given by
where 
is velocity of A
Taking East as positive and west as negative then the sum of initial momentum is
The common velocity is represented as 
hence after collision, the final momentum is
From the law of conservation of linear momentum, sum of initial and final momentum equals each other hence
The acceleration of two cars 
From kinematic equation
hence
Substituting the value of in equation
