A particle has an acceleration of + 6.24 m/s2 for 0.300 s. At the end of this time the particle's velocity is + 9.81 m/s. What was the particle's initial velocity?

A girl lifts a 160-N load to a height of 1 min 0.5 s. How much power is used to lift the load? A. 320 W B. 80 W C. 32 w D. 160 W

What is the general relationship between the size of an atom and its first ionization energy?

Explain how a battery in a circuit is similar to a water pump.

This is how platinum appears in the periodic table. Rounded to the nearest whole number, what is the atomic mass of platinum? a. 78 b. 117 c. 195 d. 273

A light with a second-order bright band forms a diffraction angle of 30.0°. The diffraction grating has 250.0 lines per mm. The wavelength of the light is nm.

Unpolarized light with an intensity of 432 W/m^2 passes through three polarizing filters in a row, each of which is rotated 30 degrees from the one before it. Find the intensity of the light that emerges at the end

How many protons are in the radioactive isotope 40/19K?

What are some examples of constructive interference and the Doppler Effect in real life

A football is kicked at an 50 degree angle to the horizontal, travels a horizontal distance of 20m before hitting the ground. what is the initial speed?

What happens when you rub an ebonite stick with a wool cloth?