Car crosses the first third of the road with unknown speed and the rest of the road with the speed of 50 km/h. What is the the speed in the first third if the average speed of a car is 30km/h?

A 120 V general-purpose circuit should have circuit breakers or fuses with values of A. 50 A. B. 120/240 A. C. 15 A or 20 A. D. 100 A.

What kind of energy does a rubber band have when it is stretched? a. elastic potential energy b. gravitational potential energy c. kinetic energy d. chemical energy

Which style of parenting is most likely to produce spoiled immature and self indulgent children who have little self control?

Which of the following forces acting upon an atom are the strongest? electrostatic forces nuclear forces gravitational forces frictional forces

Only electrons orbit the nucleus of an atom true or false

A gate in an irrigation canal is constructed in the form of a trapezoid 2 m wide at the bottom, 38 m wide at the top, and 2 m high. It is placed vertically in the canal so that the water just covers the gate.

A machine with a mechanical advantage of 10 is used to produce an output force of 250 newtons. What input force is applied to this machine

Why do you float in space

How does physical change affect the identity of a substance

A scientist pours grape juice on three identical white shirts He then uses three different cleaning products on the shirts and measures how clean they get what is the independent variable in this experiment