subject
Physics, 25.10.2019 04:43 xXwolfieplayzXx

Ascene in a movie has a stuntman falling through a floor onto a bed in the room below. the plan is to have the actor fall on his back, but a researcher has been hired to investigate the safety of this stunt. when the researcher examines the mattress, she sees that it effectively has a spring constant of 65144 n/m65144 n/m for the area likely to be impacted by the stuntman, but it cannot depress more than 11.79 cm11.79 cm without injuring him. to approach this problem, consider a simplified version of the situation. a mass falls through a height of 3.72 m3.72 m before landing on a spring of force constant 65144 n/m.65144 n/m. calculate the maximum mass that can fall on the mattress without exceeding the maximum compression distance.

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 15:30
Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha
Answers: 1
question
Physics, 21.06.2019 23:00
We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg.k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.
Answers: 2
question
Physics, 23.06.2019 00:30
Define the terms moral development and moral reasoning.
Answers: 1
question
Physics, 23.06.2019 01:00
Is a volume of space that is empty of matter.
Answers: 3
You know the right answer?
Ascene in a movie has a stuntman falling through a floor onto a bed in the room below. the plan is t...
Questions
question
Mathematics, 23.08.2019 05:50
question
Mathematics, 23.08.2019 05:50
question
Health, 23.08.2019 05:50
question
English, 23.08.2019 05:50
Questions on the website: 13722362