When plutonium-239 undergoes alpha decay, it becomes a) curium-241 + an alpha particle b) uranium-235 + an alpha particle c) neptunium-237 + and alpha particle d) plutonium-237 + and alpha particle

If the wheels lock when braking suddenly the vehicle: a: loses traction b: lose steering wheel ability c: gain speed slightly d: gain steering ability

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit