If a car increases its velocity from zero to 60 m/s in 10 seconds, its acceleration is
1 answer:
We know that a=vf_vi/t equals equation "a" . Where a is the acceleration of the body , vf is the final velocity , vi is the initial velocity and t is equal to time . Since vi equals o m/s , vf equals to 60 m/s and t equals 10 s. Put in equation "a". a=60-0/10 =6m/s2
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Answer:
vcyl / vsph = 1.05
Explanation:
The kinetic energy of a rolling object can be expressed as the sum of a translational kinetic energy plus a rotational kinetic energy. The traslational part can be written as follows:
The rotational part can be expressed as follows:
where I = moment of Inertia regarding the axis of rotation. ω = angular speed of the rotating object. If the object has a radius R, and it rolls without slipping, there is a fixed relationship between the linear and angular speed, as follows:
For a solid cylinder, I = M*R²/2 (4) Replacing (3) and (4) in (2), we get:
Adding (5) and (1), we get the total kinetic energy for the solid cylinder, as follows:
Repeating the same steps for the spherical shell:
Since we know that both masses are equal each other, we can simplify (6) and (9), cancelling both masses out. And since we also know that both objects have the same kinetic energy, this means that (6) are (9) are equal each other. Rearranging, and taking square roots on both sides, we get:
This means that the solid cylinder is 5% faster than the spherical shell, which is due to the larger moment of inertia for the shell.
Answer:
the temperature would increase globally because carbon dioxde contributes to global warming increase the temperature of the earth
Explanation:
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Well according to the molecular formula of glucose, one molecule would have 6 carbon atoms, and thus 2 molecules of glucose would have 12 carbon atoms. The correct response would be B. 12.
Explanation:
electrical potential = (6.6-3.4)/0.20
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As we sit in a chair, Action force will be only in one direction and that direction would be downward only.In short, Your Answer would be Option A Hope this helps!