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COFFEE
Questions (127)
A man (weighing 915 N) stands on a long railroad flatcar (weighing 2805 N) as it rolls at 18.0 m/s in the positive direction of
0 answers
630 views
At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (9.00i + 8.00j) m/s^2. It moves at
0 answers
725 views
A sphere of mass 2.7 x 10^-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a
0 answers
608 views
A sphere of mass 2.7 x 10^-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a
0 answers
657 views
At time t1 = 2.00 s, the acceleration of a particle in counterclockwise circular motion is (9.00i + 8.00j) m/s^2. It moves at
1 answer
1,674 views
What are the x and y components of a vector a in the xy plane if it's direction is 215 degrees counterclockwise from the
0 answers
862 views
Given two vectors, a and b, such that a + b = a - b, find the magnitude of b.
Consider the equation a + b = a - b to be n vector
0 answers
505 views
A bicyclist travels in a circle of radius 35.0 m at a constant speed of 7.00 m/s. The bicycle-rider mass is 72.0 kg.
Calculate
0 answers
698 views
A certain string can withstand a maximum tension of 43 N without breaking. A child ties a 0.37 kg stone to one end and, holding
0 answers
759 views
A stuntman drives a car (without negative lift) over the top of a hill, the cross section of which can be approximated by a
0 answers
798 views
A stuntman drives a car (without negative lift) over the top of a hill, the cross section of which can be approximated by a
4 answers
959 views
A certain string can withstand a maximum tension of 43 N without breaking. A child ties a 0.37 kg stone to one end and, holding
0 answers
816 views
A bicyclist travels in a circle of radius 35.0 m at a constant speed of 7.00 m/s. The bicycle-rider mass is 72.0 kg.
Calculate
1 answer
570 views
Calculate the ratio of the drag force on a passenger jet flying with a speed of 750 km/h at an altitude of 10 km to the drag
0 answers
1,362 views
A 3.0 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 18 N at an angle = 45° with
0 answers
638 views
A 17 N horizontal force F pushes a block weighing 6.0 N against a vertical wall. The coefficient of static friction between the
0 answers
812 views
A 17 N horizontal force F pushes a block weighing 6.0 N against a vertical wall. The coefficient of static friction between the
0 answers
755 views
A 3.0 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 18 N at an angle = 45° with
0 answers
688 views
Calculate the ratio of the drag force on a passenger jet flying with a speed of 750 km/h at an altitude of 10 km to the drag
0 answers
1,209 views
In a pickup game of dorm shuffleboard, students crazed by final exams use a broom to propel a calculus book along the dorm
0 answers
643 views
Four balls are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a force of magnitude 95
1 answer
883 views
Imagine a landing craft approaching the surface of Callisto, one of Jupiter's moons. If the engine provides an upward force
0 answers
663 views
Imagine a landing craft approaching the surface of Callisto, one of Jupiter's moons. If the engine provides an upward force
0 answers
514 views
Four balls are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a force of magnitude 95
0 answers
600 views
magine a landing craft approaching the surface of Callisto, one of Jupiter's moons. If the engine provides an upward force
0 answers
676 views
A worker drags a crate across a factory floor by pulling on a rope tied to the crate. The worker exerts a force of 450 N on the
0 answers
1,139 views
Two horizontal forces act on a 2.4 kg chopping block that can slide over a frictionless kitchen counter, which lies in an xy
1 answer
1,138 views
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