An aerobatic airplane pilot experiences

weightlessness as she passes over the top of

a loop-the-loop maneuver.

The acceleration of gravity is 9.8 m/s^2

If her speed is 440 m/s at this time, find the

radius of the loop.

Answer in units of km.

How does the charge not originate in a battery?

A 24-gauge copper wire has a diameter of 0.51 mm and is used to connect a speaker to an amplifier. The speaker is located 8.5 m away from the amplifier.

A filled water tower sits on the top of the highest hill near a city. The cylindrical tower has a height of 55.0 m Find the pressure (in kPa) on the bottom of the water tower

Which of the following is true about the mass of the reactants in a chemical reaction? A. The total mass of the reactants in a chemical reaction will be significantly more than the total mass of the products. B.

Which type of thermal energy transfer occurs mostly in fluids? insulation radiation convection conduction

4. A car of mass 2000 kg is traveling at 45 m/s when the driver spots a policeman anead. i ne univer apprivo the brakes lightly for 3.0 seconds until he slows down below the speed limit. If the average force applied by the brakes was 1.

When does a scientist create the conclusion?

When using a simple machine, the force you must overcome. A simple machine usually multiplies the effort force to exceed the this. Example: Lucy lifts a sack of potatoes using a pulley. The weight of the sack of potatoes is this.

How is ecology diffrent from earth science

Which theory was first proposed by Albert Einstein? A. the theory of special relativity B. the theory of universal gravitation C. the theory of inertia D. the theory of radioactivity ... the answer is A i just found out