To get an accurate data reading, scientists must be sure to
a.) always use a measuring cup.
b.) use broken equipment.
c.) use the wrong tool.
d.) use the right tool

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good