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In an emergency stop to avoid an accident, a shoulder strap seatbelt holds a 60 kilogram passenger in place. If the car was initially traveling at 90 km/h and came to a stop in 5.5 second along a straight, level road, find the average force applied to the passenger by the seat belt?
Calculate the ratio of the drag force on a jet flying at 899km/h at an altitude of 7.8 km to the drag force on a prop-driventransport flying at half that speed and altitude. The density ofair is 0.51 kg/m3 at 7.8 km and 0.73 kg/m3 at3.9 km.
How far below the release point is the center of mass of two stones at t = 550 ms? (Neither stone has yet reached the ground.)
A circular beaker is 40 cm tall and has a radius of 2 cm. Itinitially holds water at a depth of 25cm. What is the pressure at the bottom of the beaker
Consider a 60 W light bulb with a 2.0m long tungsten filament connected to a 120V source, Determine the resistance of the filament
The radar system at an airport broadcasts 15 GHz with 150 kW. An approaching airplane with a 34 m^2 cross section is 24km away. Assume that the radar broadcasts uniformly in all directions and that the airplane scatters microwaves uniformly in all di..
a 15 lb block b starts from rest and slides on the 25 lb wedge a which is supported by a horizontal surface. neglecting
A child sits 1.75 m from the center of a rotating merry-go-round that makes one complete revolution (spin) in 2.58 seconds. What is the child's acceleration
question calculate the velocity in ms-1 of photoelectrons ejected from a sodium metal surface which has a work function
A 70 turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 rad/s in a 1.15 T field, At what time is the peak emf first reached
Monochromatic light strikes a diffraction grating at normal incidence before illuminating a screen 3.00 m away. what is the distance between the two second-order maxima
on a trip to the colorado rockies you notice that when the freeway goes steeply down a hill there are emergency exits
What is the coefficient of rolling friction μr for the tire under low pressure?
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