Explanation:
the object with the higher temperature has greater thermal energy
So the answer is
the stick of butter with less thermal energy.
Hope it will help :)
Answer:
The time it will take the car to travel the next 15 m is 1 s.
Explanation:
Given;
initial velocity of the car, u = 0
time of motion, t = 2.4 s
initial distance traveled, d = 15 m
determine the constant acceleration of the car;
d = ut + ¹/₂at²
15 = 0 + (0.5 x 2.4²)a
15 = 2.88a
a = 15 / 2.88
a = 5.21 m/s²
The velocity of the car at the end of the first 15 m
v - u + at
v = 0 + 5.21 x 2.4
v = 12.5 m/s
The time to cover the next 15 m;
d₂ = vt + ¹/₂at²
15 = 12.5t + (0.5 x 5.21)t²
15 = 12.5t + 2.61t²
0 = 2.61t² + 12.5t - 15
Use the formula method to solve the above quadratic equation.
a = 2.61
b = 12.5
c = -15
![t = \frac{-b \ \ +/- \ \ \sqrt{b^2 - 4ac} }{2a} \\\\t = \frac{-12.5 \ \ +/- \ \ \sqrt{12.5^2 - (4\times 2.61 \times -15)} }{2\times 2.61}\\\\t = 0.9937 \ s \ \ \ or \ \ \ -5.78 \ s\\\\time \ can \ only \ be \ positive;\\\\t \approx \ 1\ s](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B-b%20%5C%20%5C%20%2B%2F-%20%20%20%5C%20%5C%20%5Csqrt%7Bb%5E2%20-%204ac%7D%20%7D%7B2a%7D%20%5C%5C%5C%5Ct%20%3D%20%5Cfrac%7B-12.5%20%5C%20%5C%20%2B%2F-%20%20%20%5C%20%5C%20%5Csqrt%7B12.5%5E2%20-%20%284%5Ctimes%202.61%20%5Ctimes%20-15%29%7D%20%7D%7B2%5Ctimes%202.61%7D%5C%5C%5C%5Ct%20%3D%200.9937%20%5C%20s%20%5C%20%5C%20%5C%20or%20%5C%20%5C%20%5C%20-5.78%20%5C%20s%5C%5C%5C%5Ctime%20%5C%20can%20%5C%20only%20%5C%20be%20%5C%20positive%3B%5C%5C%5C%5Ct%20%5Capprox%20%5C%201%5C%20s)
Therefore, the time it will take the car to travel the next 15 m is 1 s.
The buoyant force exerted on a 6,000-mL toy balloon by the air surrounding the balloon is 52.97N.
<h3>How to calculate buoyant force?</h3>
The buoyancy needed for an object can be calculated using the formula;
B = ρ × V × g
where;
- ρ and V are the object's density and volume respectively
- g is the acceleration due to gravity (9.81m/s²)
B = 6000 × 0.0009 × 9.81
B = 52.97N
Therefore, the buoyant force exerted on a 6,000-mL toy balloon by the air surrounding the balloon is 52.97N.
Learn more about buoyant force at: brainly.com/question/21990136
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Well, first of all, wherever you got this question from has done
a really poor job of question-writing. There are a few assorted
blunders in the question, both major and minor ones:
-- 22,500 is the altitude of a geosynchronous orbit in miles, not km.
-- That figure of 22,500 miles is its altitude above the surface,
not its radius from the center of the Earth.
-- The orbital period of a synchronous satellite has to match
the period of the Earth's rotation, and that's NOT 24 hours.
It's about 3 minutes 56 seconds less ... about 86,164 seconds.
Here's my solution to the question, using some of the wreckage
as it's given, and correcting some of it. If you turn in these answers
as homework, they'll be marked wrong, and you'll need to explain
where they came from. If that happens, well, serves ya right for
turning in somebody else's answers for homework.
The satellite is traveling a circle. The circle's radius is 26,200 miles
(not kilometers) from the center of the Earth, so its circumference
is (2 pi) x (26,200 miles) = about 164,619 miles.
Average speed = (distance covered) / (time to cover the distance)
= (164,619 miles) / day
(264,929 km)
= 6,859 miles per hour
(11,039 km)
= 1.91 miles per second
(3.07 km)
I believe it is
1.6x=2.7(x-1.8)
1.1x=2.7*1.8
x~4.4
4.4*1.6
~7.1m