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Questions (14)
Walter is making an open-top box. The length is 6 inches greater than the width, and the height is 2 inches. The area of the
0 answers
688 views
Amy throws a softball in the air with an initial velocity of 50 feet per second. She throws the softball from a height of 6
2 answers
1,786 views
You are responsible for planning the parking needed for a new 256-unit apartment complex, and you are told to base the needs on
2 answers
845 views
A 6470 kg helicopter accelerates upward at 0.57 m/s2 while lifting a 1180 kg frame at a construction site
(a) What is the lift
0 answers
737 views
A 800 N crate is being pulled across a level floor by a force F of 320 N at an angle of 29° above the horizontal. The
1 answer
4,747 views
A box of books weighing 323 N is shoved across the floor by a force of 477 N exerted downward at an angle of 35° below the
1 answer
1,082 views
Suppose that you are standing on a train accelerating at 0.39g. What minimum coefficient of static friction must exist between
1 answer
747 views
An elevator (mass 4125 kg) is to be designed so that the maximum acceleration is 0.0300g.
What is the maximum force the motor
1 answer
802 views
Two forces are applied to a car in an effort to accelerate it. The first force, F1 = 326 N, is applied at an angle α = 40° to
1 answer
607 views
Two planes approach each other head-on. Each has a speed of 765 km/h, and they spot each other when they are initially 11.0 km
3 answers
4,041 views
A projectile is shot from the edge of a cliff h = 225 m above ground level with an initial speed of v0 = 155 m/s at an angle of
0 answers
641 views
A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235 m below. Assume the plane is traveling
1 answer
14,138 views
A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235 m below. Assume the plane is traveling
1 answer
816 views
Can someone please help wright a proof for the following.
given: JKLM is a square prove: MK is perpendicular to LJ the figure in
1 answer
591 views
