Answer: n; 160 =< n < 3796
Explanation:
Number of miles needed to claim Gold d has the range
{d; 2280022800 > d >= 96009600}
Greg goes 600600miles in a year
dGreg = 600600mi
Lower limit for a Gold status is 96009600
Thus, we find the lower limit of number of trips
n = d/dGreg
(d here is the lower distance per year to be covered in order to attain Gold)
n(lower) = 96009600/600600
= 159.8561 ~ 160 trips
n(higher) = 2280022800/600600
= 3796.24 ~ 3796 trips
In interval notation
n; 160 =< n < 3796
Answer:
C.
Explanation:
The induced current is related to the rate of change of the magnetic flux in a loop wired, so adding a strong magnet will increase the magnetic flux, and if we increase the spinning we'll increase the change of rate, so both induced a bigger current, so b,c, and d are also correct, but c will show better results.
Answer:
a.
Explanation:
The equation of the forces along the directions parallel and perpendicular to the slope are:
- Along the parallel direction:
where
:
m = 6.0 kg is the mass of the box
g = 9.8 m/s^2 the acceleration of gravity
is the angle of the slope
is the coefficient of friction
R is the normal reaction
a is the acceleration
- Along the perpendicular direction:
From the 2nd equation, we get an expression for the reaction force:
And substituting into the 1st equation, we can find the acceleration:
Solving for a,
Answer:
If I am a cartographer, I can tell that continents are once joined because of the shape of the continents that once you observe their sides, it's like a puzzle.
Explanation:
Answer:
According to Newton's 2nd law
The force acting on a body produces acceleration in its direction which is directly propotional to the force but inversly propotinal to the mass of tbe body.
Explanation:
a = F/m
F = ma
Where( F) is force (m) is mass and (a) is acceleration.