una nadadora quiere cruzar un rio de 100 m de anchura en dirección perpendicular a la corriente, pero llega a un punto de la orilla opuesta 20m aguas abajo. Calcula la velocidad de la corriente si ella va a 2 m/s

What is on the x-axis of a speed graph

Two parallel conducting plates that are in deep space are brought to a potential difference of 3000 V, and a small pellet of mass 2.60 mg carrying a charge of 6.00 * 10-7 C accelerates from rest from the positive plate.

When two waves in the same medium hit each other, the resulting displacement of the medium is 1. Either larger or smaller than the displacement of either wave acting alone, depending on the signs of the displacements of the two waves. 2.

If a substance can be separated by physical means and it is not the same throughout, what is it? A: a homogeneous solution B: a heterogeneous mixture C: a pure substance D: an element E: a compound

What happens when an object is dropped? A. Its velocity at 2 seconds is 19.6 m/s. B. Its velocity at 2 seconds is 9.8 m/s. C. Its velocity at 2 seconds is 20 km/h. D. Its velocity at 2 seconds is 22 mph.

Is it possible for a baseball to have as large a momentum as a much more massive bowling ball

A simple pendulum with length 1.6 m and mass 21 kg is pulled 20◦ from the vertical and released. If it is allowed to swing until it comes to rest, how much energy was converted into heat? The acceleration of gravity is 9.8 m/s 2.

A pulley system has an MA of 4. How much force would be necessary to pull a 200 newton box

0.005098 in megaliters to liters

The active sections that are located along fault lines are called A. seismic gaps. B. seismic risks. C. stress accumulations. D. recurrence gaps