Are different forms of a single element. a) atoms b) elements c) ions d) isotopes

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

What property of an object determines its inertia?

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)