A 55 kg ice skater is gliding along at 3.5 m/s. Five seconds later her speed has dropped to 2.8m/s. What is the magnitude of the kinetic friction acting on her skates?

If mars is now 50 â ahead of earth in its orbit around the sun, when should you launch the rocket

Example of amplitude

Which of the following energy sources is no way derived from the sun is it nuclear energy title energy when energy or petroleum

A rope of negligible mass is wrapped around a 225-kg solid cylinder of radius 0.400 m. the cylinder is suspended several meters off the ground with its axis oriented horizontally, and turns on that axis without friction. (a) if a 75.

Which process will double the power dissipated by a resistor?

Which of the following describes a scientific law? A. based of scientific evidence B. explains how and why nature does what it does C. not based of scientific evidence

Before leaving her home, Myesha makes sure that every electrical appliance is unplugged and checks that every window and door is securely locked. She checks everything seventeen times according to a strict ritual that she has worked out.

a minibus drives 238 miles with a constant speed of 84 mph and another 80 miles with a constant speed of 60 mph. how much time in total does it take to travel these distance?

If the volume of a container increases, then the pressure will: A. first increase and then decrease. B. increase. C. stay the same. D. decrease.

How does the theory of natural selection explain the diversity of life?