Answer:
Atlanta is at 596.0 km from the house.
Explanation:
The distance between Atlanta and the house can be found using the following equation:
(1)
Where:
v: is the speed = 80 km/h
t: is the time = 7.45 h
By solving equation (1) for d and entering the above values we have:
Therefore, Atlanta is at 596.0 km from the house.
I hope it helps you!
c. Ben is correct. According to Newton's 2nd law of motion objects with more mass require more force to accelerate.
Explanation:
We can answer this question by using Newton's second law of motion, which states that the net force applied on an object is equal to the product between the mass of the object and its acceleration. Mathematically:
where
F is the net force
m is the mass of the object
a is its acceleration
From the equation, we notice that:
- The force is directly proportional to the mass of the object --> so if the mass increases, the force needed to accelerate the object will increase too
Therefore, the correct answer is
c. Ben is correct. According to Newton's 2nd law of motion objects with more mass require more force to accelerate.
Learn more about Newton's second law:
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Answer
given,
Time,t = 1.3 x 10⁻⁴ s
angle of rotation = 90° =
Average angular velocity of the mandible
ω = 1.21 x 10⁴ rad/s
average angular velocity is equal to 1.21 x 10⁴ rad/s
if the time given is = 2.20 x 10⁻⁴ s
ω = 7.14 x 10³ rad/s
average angular velocity is equal to 7.14 x 10³ rad/s
As in question, the speed of person is given m/s whereas the distance he needs to cover is given in miles.
Formula to calculate the time,
To get the correct answer, convert the distance in to miles.
Therefore,
or