Part b what is the particle's speed at t=4.5s? express your answer using two significant figures.

geography Which nation in the region has seen its growth rate accelerate, while the majority of the region has seen a decline in growth rates?

8. What is the wavelength of a sound wave that has a speed of 250 m/s and a frequency of 400 Hz? 9. What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 2.0 m? 10.

What are 5 ways to conserve energy at school?

Why two fluorine atoms are bonded by covalent bond?

Using our understanding of orbits, which orbits (near or far) are moving more slowly? near far

What should a free-body diagram look like for a skydiver that is still speeding up as he falls? There is an arrow up for air resistance and an arrow down for gravity. The arrows are the same length.

As a rocket moves farther and farther upward from the launch pad, what happens to the strength of Earth's gravitational field around the rocket? a. It gets weaker. b. It grows stronger. c. It remains constant.

Sully uses a battery and a coil of wire to create an electromagnet. Using the same materials, if he wants to increase the strength of his electromagnet, he must the number of loops in the coil of wire along its length.

How long does it take for light from a star that is 8 light years away to reach Earth? Question 7 options: 8 earth minutes 16 earth minutes 8 earth years 16 earth years

Why does water in hot springs always remain hot? Why doesn't it's thermal energy spread out?