An 80 kg man is standing in an elevator which is moving down and slowing down at a rate of 2.0 m/s2. how hard must the floor of the elevator push up on the man?

Which will increase the kinetic energy of an object more, increasing its mass or increasing its speed? Why?

Different colors of light correspond to different light a. frequencies. b. polarities. c. intensities. d. velocities. E. none of the above Rese

A student sees a newspaper ad for an apartment that has 2030 square feet (ft2) of floor space. How many square meters of area are there?

John is running down the street and hears dogs barking in the distance. How do the sound waves change as John approaches the barking dogs A The height of the sound waves decreases The height of the sound waves increases The pitch of the sound waves

How do greenhouse gases affect visible and infrared light?

Your heart pumps 80 g of blood with each beat. The blood starts from rest and reaches a speed of 0.60 m/s in the aorta. If each beat takes 0.16 s, the average force exerted on the blood is a. 3.0" 102 N b. 0.22 N c. 0.16 N d. 0.30 N e. 0.98 N

What is the formula for calculating the mass when i have the number of volume and density

What is the name for potential difference that causes current to flow? (A) electric charge (B) static discharge (C) voltage

How is a herpetologist and a ecologist similar

In an oscillating lc circuit, when 75.0% of the total energy is stored in the inductor's magnetic field, (a) what multiple of the maximum charge is on the capacitor and (b) what multiple of the maximum current is in the inductor?