A 4 kg bird is flying with a velocity of 4m/s. What is its kinetic energy?

We have two noise generators: one gives 3 the other 4 V effective voltage. We form a new generator by connecting them in serial arrangement. Then the resultant voltage is 7V. How will this voltage change when we reverse the 4 V generator's polarity?

What are nonmetals in general

A stone is thrown vertically upward with a speed of 24.0. (a) How fast is it moving when it reaches a height of 13.0? (b) How long is required to reach this height?

Unweathered rock that underlies soil is subsoil. True False

A telephone lineman is told to stretch the wire between two poles so the poles exert an 800N force on the wire.

Sunlight, wind, and running water are essentially "free." Yet renewable energy sources are a very small part of our energy consumption. Why is this?

If a force of 40 newtons moves a cart a distance of 9 meters, the work done is Nm. If the same force moves the same cart three times that distance, the work done is Nm. NextReset

What is the critical angle c for total internal reflection if the material is clear acrylic, with a refractive index of 1.5?

What is happening if energy input remains constant and voltage remains the same in a circuit, but the current decreases? A. The resistance has increased. B. The volts have decreased. C. The power has increased.

The velocity - time graph of a ball of mass 25g moving on road is as given below: (a) How much force does the road exert on the ball to bring it to rest? (b) What is the direction of the force exerted by the road?