Because of air resistance, an object falling a great distance may reach a ______________ velocity

Fill in the blank(s) with correct word


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Physics & Space Science

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Saturn's rings are extremely old, possibly older than four billion years

Indicate whether the statement is true or false

Physics & Space Science

A parallel-plate capacitor with plate area A and plate separation d has a capacitance of 4 ?F with the gap between the plates unfilled. The gap is then filled with two dielectric materials, one with dielectric constant 2 and the other one with dielectric constant 6 . Each slab of dielectric has area A and thickness d/2, the layering of the dielectrics resulting in the gap being completely

filled. Which of the following combinations of capacitors will have the same capacitance as the newly filled parallel-plate one? a. two capacitors in parallel, one with capacitance of 8 ?F and the other with capacitance of 24 ?F b. two capacitors in series, one with capacitance of 8 ?F and the other with capacitance of 24 ?F c. two capacitors in parallel, one with capacitance of 16 ?F and the other with capacitance of 48 ?F d. two capacitors in series, one with capacitance of 16 ?F and the other with capacitance of 48 ?F e. two capacitors in parallel, one with capacitance of 8 ?F and the other with capacitance of 48 ?F

Physics & Space Science

The end of the cutting cord on a gas-powered weed cutter is 0.21 m in length. If the motor rotates at the rate of 20 rev/s, what is the tangential speed of the end of the cord?

a. 13 m/s b. 4.2 m/s c. 26 m/s d. 2.7 m/s

Physics & Space Science

A race car moving quickly around a track collides with a mosquito, which splatters on the car's windshield. Which object experiences a greater magnitude impact force?

1.Both experience the same force. 2.One cannot tell, you need to know the speeds of the mosquito and the race car. 3.the mosquito 4.the race car

Physics & Space Science