We will have the following:
Since it is a white rock, then when in a windowless room with just red light the color that will appear to our eyes is red. Since is the only color to reflect.
A compound
Explanation:
A compound machine is the combination of two or more simple machines.
An example is bicycle.
- A simple machine is a device that is used to increase the magnitude of force.
- It is a basic mechanical unit.
- Examples are inclined planes, lever systems, wheel and axle.
- A compound machine is a combination of these simple machines.
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Answer:
25.52 m
Explanation:
Relative speed between the person and I would be the difference of our speeds
Time taken by me to walk up to the person = 14.5 s
Distance is given by
The person was 25.52 m ahead of me when I started running
Answer:
Impulse, J = 5 kg-m/s
Explanation:
Accoding to impulse-momentum theorem, the change in momentum of an object is equal to the impulse applied to it. In this problem, the change in momentum of an object is 5 kg-m/s.
We need to find the impulse necessary to change the momentum. So, impulse will be equal to 5 kg-m/s.
NO net force is required to keep a moving object moving in a straight
line at a constant speed. In fact, if you apply ANY force to it, in ANY
direction, then its speed, its direction, or both must change, and its
velocity won't be uniform any more.
I know we never see this in our daily life. Whenever we see an object
moving, it always stops. That's because the net force on it is never zero ...
there's always some gravity or some friction acting on it. That's what you
have to put up with when you live on Earth.