physics
suppose that a seat-belted mother riding in an automobile holds a 10 kg baby in her arms. the automobile crashes and decelerates from 50km/h to 0 in .1 s. what average force would the mother have to exert on the baby to hold it?? do you think she can do this?
physics
A rule of thumb for automobile collisions against a rigid barrier is that the collision lasts about .11 seconds, for any initial speed and for any model of automobile. accordingly, the deceleration experienced by an automobile during a collision is directly proportional to the...
math
Sue was in excellent shape in high school, she could ride her 10-speed bicycle 4.8miles to her grandmother's house in 11 minutes. Her return trip home took 14 minutes. The times are different due to there being a slight downhill slop on part of the trip to her grandmothers...
Algebra 1
Thank you!!!
Algebra 1
Can you help me set this up? Suppose you are trying to decide whether to buy ski equipment. Typically it costs $60 day to rent skis and buy a lift ticket. You can buy ski equipment for about $400. A lift ticket alone costs $35 for one day. Find the break-even point. Thanks.
Math
Thank you for your help!
Math
If X = 12 units, Y = 10 units, and Z = 14 units, then what is the surface area of the right triangular pyramid shown above?
7th grade Math
Thom has a scale model of his car. The scale is 1:12. If the actual car has 16-inch wheels, what size are the wheels on the actual scale model?
Physics
part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2. part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of 1 m/s^2. Find the ma...
Physics
part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2. part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of 1 m/s^2. Find the ma...
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