Because it is acted upon by balanced forces.
Toy cars use a variety of mechanisms to make them go, but they all store up potential energy. Although the elastic material inside is usually steel and not rubber, the principle is the same. By changing the shape of the material (usually a coil of metal) energy is stored and then released as motion.
Hi, thank you for posting your question here at Brainly.
For consistency you must convert gallons to cubic foot. The conversions are:
7.481 gal = 1 ft3
Then, $3.65 per gallon becomes $27.3 per ft3. If you buy $40 worth of gas, you get $40/$27.3 = 1.46 ft3 of gas.
If you can travel for 4 miles per ft3, then with the amount of gas you have, you can travel up to 5.85 miles.
(4 miles/ft3)*(1.46 ft3) = 5.85 miles
lf a heavy point mass is suspended by a weightless, inextensible and perfectly flexible string from a rigid support, then this arrangement is called simple pendulum.
In practice, however, these requirements cannot be fulfilled. So we use a practical pendulum.
A practical pendulum consists of a small metallic solid sphere suspended by a fine silk thread from a rigid support. This is the practical simple pendulum which is nearest to the ideal simple pendulum.
Note :
The metallic sphere is called the bob.
When the bob is displaced slightly to one side from its mean position and released, it oscillates about its mean position in a vertical plane.
The distance you should cover is: S=150 km
Your average speed is: v=50 km/h
Therefore, to calculate the time you will take to cover this distance, we can use the basic relationship between space, distance and time, and we find:
so, you will take 3 hours.
