Physics, 16.12.2019 22:31 kelton99

You are standing on a saucer-shaped sled at rest in the middle of a frictionless ice rink. your lab partner throws you a heavy frisbee. you take different actions in successive experimental trials. rank the following situations in order according to your final speed, from largest to smallest. if your final speed is the same in two cases, give them equal rank. (a) you catch the frisbee and hold onto it. (b) you catch the frisbee and throw it back to your partner. (c) you catch the frisbee and throw it to a third person off to the side at a right angle. (d) you bobble the catch, just touching the frisbee so that it continues in its original direction more slowly.

Answers: 1

Show answers

Another question on Physics

Physics, 21.06.2019 13:50

Which of the following describes something an engineer would probably do first when developing new technology meant to reduce ocean pollution? o a. evaluate the benefits and challenges of using certain chemicals to purify water. o b. research new scientific findings in regard to ocean cleanup. o c. identify the need to reduce ocean pollution. o d. research what has been done in the past to clean up oceanic oil residue.

Answers: 1

Answer

Physics, 22.06.2019 08:00

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Answers: 2

Answer

Physics, 22.06.2019 10:00

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

Answers: 1

Answer

Physics, 22.06.2019 19:50

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.

Answers: 3

Answer

You know the right answer?

You are standing on a saucer-shaped sled at rest in the middle of a frictionless ice rink. your lab...

Questions