Give an example of a food chain with at least 3 organisms

An ice skater of a mass of 50kg is initially moving at 5m/s, before decreasing their kinetic energy by 75J. Calculate their final speed.

In the formula used to solve problems related to the first law of thermodynamics what does Q represent?

18. Which does not affect the strength of an electromagnet? A the current in the solenoid B the temperature of the coil OC the number of loops in the coil D the type of ferromagnetic core

When the only force acting on a falling object is air resistance, the object is said to be in free fall

Starting from rest, a 30.8 kg child rides a 9.75 kg sled down a frictionless ski slope. At the bottom of the hill, her speed is 6.0 m/s. If the slope makes an angle of 15.

How many (whole number of) 77 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton? A metric ton is 1.000 * 103 kg. Answer in units of people

Balanced forces do not change the motion of an object

Maritime climates can be expected in the middle of large continents. True False

Why do scientists think that our solar system must have formed sometime after nearby supernovae explosions?

A professor sits on a rotating stool that is spinning at 10.0 rpm while she holds a heavy weight in each of her hands. Her outstretched hands are 0.785 m from the axis of rotation, which passes through her head into the center of the stool.