c. II and III only (the object has 0 acceleration and the object has constant velocity.)
Why?
Let's discard each of the given options to find the correct one(s).
<h3>
- There are no forces acting on the object:</h3>
False, if an object has a constant speed, it does not mean that there are no forces acting on it, in fact, there will be always acting forces, like frictional force, gravity force, air resistance, and others.
<h3>
- The object has a 0 acceleration:</h3>
True, in an object is moving at constant speed, it means that there is no acceleration, the speed will be the same all the time during motion.
<h3>
- The object has constant velocity:</h3>
True, <u>if an object is moving in a straight line at constant speed</u> the velocity will be also constant. The velocity of an object is referring to its speed and its direction, if the object is moving in a straight line, the direction will be the same, so, if the speed is constant, the velocity will be also constant.
Have a nice day!
With density implying the ratio of mass per volume, the gas density<span> of the balloon, therefore, modifies only with its volume when mass is held constant. If we compress the balloon, we </span>compress the air and two things will happen<span>: the air pressure in the balloon will increase.</span>
Answer:
A: has a shorter wave length
Explanation:
As we know that the there is no relation between the frequency and the ampitude. But there is an inverse relation with respect to the wavelength i.e. if one is rise than the other would decrease. In addition to this, the shorter the
wavelength, the smaller would be the frequency and vice versa.
So if X contains the greater frequency so it has a shorter wave length
hence the option A is correct
Answer:
Velocity between points A and B will be 0.2344 m/s