Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
A parachutist descending at a speed of 10.0 m/s loses a shoe at an altitude of 30.0 m. (Assume the positive direction is upward.) (a) When does the shoe reach the ground?
The summit of a mountain 2450 m above a baseball camp is measured on a map to be 4 m horizontally from the base camp in a direction 32.4 west of the north. What are the components of the displacemen
A 4.30 kg block is pushed along a floor by a constant applied force that is horizontal and has a magnitude of 42.0 N. Figure 6-27 gives the block's speed v versus time t as the block moves along an
A crate weighing 287 N rests on a plank that makes a 43 degree angle with the ground. Find the components of the crates weight force parallel and perpendicular to the plank.
Find the focal length of contact lenses that would allow a farsighted person with a near-point distance of 176 {rm cm} to read a book at a distance of 10.1 {rm cm}.
After falling from rest from a height of 28 m, a 0.49 kg ball rebounds upward, reaching a height of 18 m. If the contact between ball and ground lasted 2.0 ms, what average force was exerted on the
For the next five seconds, the car slows down further, and its average acceleration is a2. The velocity of the car at the end of the fifteen-second period is +20.6 m/s. The ratio of the average acce
A small 0.500kg object moves on a frictionless horizontal table in a circular path of radius 1.00m. The angular speed is 6.28 rad/s. The object is attached to a string off negligible mass that passe
How much charge ends up on sphere C? What is the total charge on the three spheres
A solid uniform 45 kg ball of diameter 32 cm is supported against a vertical frictionless wall using a thin 30cm wire of negligible mass.
The skater farthest out has a mass of 80.0 kg and is 6.40 m from the pivot. He is skating at a speed of 6.50 m/s. Determine the magnitude of the centripetal force that acts on him.
Assume the blade to be a uniform solid disk of radius 0.130 m and mass 0.400 kg. Find the net torque applied to the blade.
Find the net force acting on particle 3 due to the presence of the other two particles. Report you answer as a magnitude and a direction measured from the positive x axis. Express the magnitude in n
Aa slide projector which has a converging lens of focal length 20.0cm is used to magnify the area of a slide 5cm^2 to an area 0.8cm^2 on a screen. calculate the distance of the slide from the proje
A baseball is thrown at an angle of 27 degrees relative to the ground at a speed of 20.9m/s. The ball is caught 36.0231m from the thrower. The acceleration due to gravity is 9.81m/s square. How long
Three equal point charges, each with charge 1.95 mu C, are placed at the vertices of an equilateral triangle whose sides are of length 0.350 m. What is the electric potential energy U of the system
A toy train is pushed forward and released at xi = 1.0 m with a speed of 1.6 m/s. It rolls at a steady speed for 1.9 s, then one wheel begins to stick. The train comes to a stop 6.0 m from its start
A 25.0-{rm kg} crate is pulled northward at a constant speed of 20.0 {rm m}/{rm s}. One of the forces acting on the block acts in a direction 60.0 ^circ east of north and has magnitude 15.0 {rm N} A
A 3.25 kg steel ball strikes a wall with a speed of 10.0 m/s at an angle of 60.0° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.1
A baseball of mass 0.144 have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
A solid (cylindrical) flywheel of mass m and radius r is initally at rest. A force F acts tangentially on its perimeter for a time t. What is its angular displacement during that time?
If the electic field is turned off, the particles move in the magnetic field in circular paths of radius r=2.67 cm Determine q/m for the particles from these data. answer in units of C/kg.
If 15% this maximum load is hung from the wire, by what percentage of its length will it stretch ?
When an 85.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 1.70 x 103 J. By how much does the potential energy of a 23.0
A pitcher throws a curveball that reaches the catcher in 0.61 s. The ball curves because it is spinning at an average angular velocity of 370 rev/min (assumed constant) on its way to the catcher's