An elastic cord has a spring constant of 38 N/m. How much force is required

to stretch the cord 0.3 m past its natural length?

What type of graph should an ecologist use to graph the relationship between a country's population and the year

A car with a mass of 650 kg is moving with a speed of 20m/s. Calculate the kinetic energy of the car?

The drag is proportional to the square of the speed of the boat, in the form Fd=bv2 where b = 0.5 N⋅ s2/m2. What is the acceleration of the boat just after the rain starts? Take the positive x axis along the direction of motion.

True or false: If the distance between two objects is doubled, the gravitational force between them will decrease by 1/2.

A capacitor is connected to an AC generator. As the generator's frequency is increased, what happens to the current in the capacitor? A) The current increases B) The current decreases C) The current does not change.

what is a possible unit for the product VI, where V is the potential difference across a resistor and I is the current through the same resistor?

What is one basic need that both monkey and a tree have in common

Which statement is true about the centripetal force acting on a body moving at a constant speed in a circle? A. It has no centripetal force. B. It has a centripetal force that is directed radially and outward. C.

Which of the following astronomical bodies is the highest in hierarchy earth galaxy solar system star

The force is proportional to what measurement