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A black body has a mass of 3.76 kg, specific heat of 2000 J/(kg · C°), surface area of 0.198 m2, emissivity 1.00, and initial temperature 94° C. The surroundings are at a temperature of 19.2° C. Discover the drop in the blackbody's temperature during a 4.95-minuteinterval that would result from heat loss by radiation only.
The water skier there has a mass of 66.0 kg. Find the magnitude of the net force acting on the skier when she is accelerated from rest to a speed of 14.0 m/s in 9.20 s
A spring-loaded toy gun shoots a 18 g plastic ball. What is the launch speed if the spring constant is 4.4×104 N/m^3 and the spring is compressed 14 cm
the temperature at a point 31 miles north of a station is 5.5 f cooler than at the station. if the wind is blowing from
A car is moving on a flat horizontal circular track of radius 120 m. The speed of the car is constant, 15m/s. The mass of the car is 1200 kg. What force is keeping the car in the circle
What is x and y coordinates of the shell
Nick is sitting in a swing thet has a rope attached to it. The rope then goes through a pulley attached to a tree above him, Find the contact normal force between Nick and the swing
four equal positive point charges each of charge -14 c are at the corners of a square of side 12cm.what charge should
A proton is moving in a circular orbit in a uniform magnetic field perpendicular to the orbit plane. calculate the magnetic force on the proton
Your are driving along SW 8th Street (Tamiami Trail). It takes you 8.6 minutes from 107th Avenue to 87th Avenue. What was your average velocity
A ball of mass 0.120 kg is dropped from rest from a height of 1.25 m. What impulse was given to the ball by the floor
A sprinter explodes out of the starting block with an acceleration of +3.9 m/s2, What is her velocity at the end of the race
There is little or no interstellar dust or gas in which of the following galaxy types? What name is given to a galaxy with a smooth distribution ofbrightness and a round, spherical shape? Who developed the "tuning-fork" diagram connecting the differe..
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