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mymi
Questions (32)
Water at room temperature flows with a constant speed of 8 m/s through a nozzle with a square cross section, as shown in the
1 answer
1,515 views
The atmosphere of Mars exerts a pressure of only 600 Pa on the surface and has a density of only 0.02 kg/m3.
(a) What is the
0 answers
971 views
Two balls of the same volume are released inside a tank filled with water as shown in the figure. The densities of balls A and B
1 answer
553 views
Two spheres of the same diameter (in air), one of a lead alloy the other one made of steel are submerged at a depth h = 2932 m
0 answers
556 views
A 1.8-g balloon is filled with helium gas. When a mass of 4.8 g is attached to the balloon, the combined mass hangs in static
1 answer
1,123 views
An airplane is moving through the air at a velocity v = 227 m/s. Streamlines just over the top of the wing are compressed to 80%
1 answer
962 views
Eris, the largest dwarf planet known in the Solar System, has a radius R = 1200 km and an acceleration due to gravity on its
0 answers
541 views
A carefully designed experiment can measure the gravitational force between masses of 9 kg. Given that the density of iron is
0 answers
1,094 views
Newton was holding an apple of mass 120 g and thinking about the gravitational forces exerted on the apple by himself and by the
0 answers
1,049 views
In the Earth–Moon system, there is a point where the gravitational forces balance. This point is known as the L1 point where
0 answers
940 views
A planet with a mass of (7*10^21) kg is in a circular orbit around a star with a mass of (2*10^30) kg. The planet has an orbital
0 answers
1,161 views
An asteroid is discovered to have a tiny moon that orbits it in a circular path at a distance of 122 km and with a period of 43
0 answers
647 views
You are using a 5-m-long ladder to paint the exterior of your house. The point of contact between the ladder and the siding of
0 answers
523 views
When only the front wheels of an automobile are on a platform scale, the scale balances at 7.9 kN; when only the rear wheels are
4 answers
928 views
During a picnic, you and two of your friends decide to have a three-way tug-of-war, with three ropes in the middle tied into a
0 answers
725 views
A 1-kg thin hoop with a 50-cm radius rolls down a 47° slope without slipping. If the hoop starts from rest at the top of the
1 answer
599 views
A CD has a mass of 15.0 g, an inner diameter of 1.5 cm, and an outer diameter of 11.9 cm. Suppose you toss it, causing it to
1 answer
564 views
A machine part is made from a uniform solid disk of radius R and mass M. A hole of radius R/2 is drilled into the disk, with the
0 answers
902 views
A ballistic pendulum consists of an arm of mass M and length L = 0.52 m. One end of the arm is pivoted so that the arm rotates
0 answers
653 views
A 1-kg thin hoop with a 50-cm radius rolls down a 47° slope without slipping. If the hoop starts from rest at the top of the
1 answer
1,454 views
In a tape recorder, the magnetic tape moves at a constant linear speed of 5.6 cm/s. To maintain this constant linear speed, the
3 answers
1,724 views
A 21.0-g metal cylinder is placed on a turntable, with its center 90 cm from the turntable's center. The coefficient of static
0 answers
616 views
The motor of a fan turns a small wheel of radius rm = 1.60 cm.This wheel turns a belt, which is attached to a wheel of radius rf
3 answers
752 views
A carousel at a carnival has a diameter of 6.0 m. The ride starts from rest and accelerates at a constant angular acceleration
1 answer
760 views
A monster truck has tires with a diameter of 1.10 m and is traveling at 30.0 m/s. After the brakes are applied, the truck slows
1 answer
1,149 views
A 21.0-g metal cylinder is placed on a turntable, with its center 90 cm from the turntable's center. The coefficient of static
2 answers
1,253 views
Two masses, m1 = 2.0 kg and m2 = 3.3 kg, are moving in the xy-plane. The velocity of their center of mass and the velocity of
0 answers
548 views
A 1175-kg cannon shoots a 33-kg shell at an angle of 25° above the horizontal and a speed of 495 m/s. What is the recoil
0 answers
537 views
Find the center of mass of a rectangular plate of length 10 cm and width 39 cm. The mass density varies linearly along the
0 answers
544 views
Find the location of the center of mass for a one-dimensional rod of length L and of linear density ë(x) = cx, where c is a
1 answer
819 views
A rocket consists of a payload of 4280.0 kg and 1.626 105 · of fuel. Assume that the rocket starts from rest in outer space,
1 answer
669 views
A jet aircraft is traveling at 180 m/s in horizontal flight. The engine takes in air at a rate of 77.0 kg/s and burns fuel at a
1 answer
1,517 views
Answers (3)
I got the first part 14.1 kN I just need help with the distance of center of mass behind the front axle.
Bob I have already tried that, but that does not give correct answer.A similar problem with different values have the following: If the mass in this problem is 18 g and radius is 75 cm and mu s is 0.87 and angular velocity is 45 rpm then the tension is
Thanks for the help drwls. I got the correct answer, but the ratio was suppose to be 1.60/2.90.
