A. 25kg ball is thrown into the air and rises to a height of 30.0m What is the balls potential energy

On a cold day, the speed of sound in air is 330 m/s. A note with a frequency of 1,320 Hz is played on an instrument. What is the wavelength of that sound wave? 0.25 m 4 m 1,650 m 435,600 m

How much net force is required to accelerate a 0.5 kg toy car, initially at rest to a velocity of 2.4 m/s in 6s?

After the slab is charged, and the electrophorus is placed on the slab, the student briefly touches the electrophorus, effectively grounding it. After that, the electrophorus appears to be charged. By what method is it charged?

Block 1, with mass m1 and speed 3.6 m/s, slides along an x axis on a frictionless floor and then undergoes a one-dimensional elastic collision with stationary block 2, with mass m2 = 0.40m1.

As we move from left to right across the periodic table, what is the general trend? A) Atomic radii increase. B) Electronegavitiy decreases. C) Nuclear shielding increases. D) Metallic character decreases.

If you placed a dot on a world map to represent the location of every earthquake in the last 100 years, where would you see earthquake activity most concentrated? why is this so?

If the medium moves perpendicular to the direction of the wave motion, the wave is classified as a longitudinal wave. True or False?

Why might surface mining be less risky for miners than underground mining?

Sometimes the moon appears to have a halo around it at night. Why does this happen? A. It's due to a partial lunar eclipse. B. Moonlight is refracted through ice crystals in high clouds. C.

Which one of the following statements about sulfric acid is correct? A. Sulfric acid is a known muriatic acid B. Sulfric acid has little effects on metals C. Sulfric acid is dangerous to living organisms D. Sulfric acid is a strong oxidizing agent