Blog

Which quantity always opposes motion?

What happens to kinetic energy if speed doubles?A) Stays sameB) DoublesC) QuadruplesD) Halves

A block is pulled with constant force over distance dd. How do you calculate work using calculus?A) ∫F dt\int F\, dtB) ∫F dx\int F\, dxC) ∫F dv\int F\, dvD) ∫F da\int F\, da

In uniform circular motion, acceleration points:A) Tangent to the circleB) OutwardC) InwardD) Along velocity

If constant power is applied, what happens to work over time?A) Stays constantB) Increases linearlyC) Decreases linearlyD) Increases quadratically

If v(t)=3t2v(t) = 3t^2v, what is the acceleration at t=2 st = 2\, s?A) 6 m/sB) 12 m/s²C) 3 m/s²D) 4 m/s²

Which unit represents work?A) N·sB) N·mC) kg·m/sD) m/s²

The use of threat of violence against civilians perpetrated by nonstate actors with a political motivation or goal.

A system of making and exchanging food and other goods.

News stories tend to show people of color committing most crimes.  This can contribute to