Never change a subscript to balance an equation.

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A. True

B. False

if the input force on a wheel and axle is 2 N and the output force is 20N what is its mechanical advantage

R1=3 ohms R2=6 ohms R4=18 ohms R5 = 15 ohms R5=9 ohms 90 volts What is the current running through the entire circuit?

What are classes of stars?

In a typical lightning strike, 2.0 c flows from cloud to ground in 0.24 ms. what is the current during the strike?

The molar masses for 235UF6 and 238UF6 molecules are 0.349 kg/mol and 0.352 kg/mol, respectively. If uranium hexafluoride acts as an ideal gas, what is the ratio of the root-mean-square speed of 235UF6 molecules to that of 238UF6 molecules if the

A California Condor is approaching its nest with a large chunk of carrion in its beak. As it approaches, it makes an upward swoop, achieving a momentary upward velocity of 12.

Radiation transfers thermal energy through -

A PWC is overtaking another vessel. Which vessel must give way?

A car traveling at + 7.0 m/s accelerates at the rate of + 0.80 m/s2 for an interval of 2.0 s. Find vf.

What is the frequency of radiation whose wavelength is 0.84 nm? express the frequency in inverse seconds to three significant digits?