Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
A 1180-kg car is being driven up a 6.89 ° hill. The frictional force is directed opposite to the motion of the car and has a magnitude of 484 N.
The arm of a crane at a construction site is 14.4 m long, and it makes an angle of 40° with the horizontal. Assume that the maximum load the crane can handle is limited by the amount of torque t
A rock of mass 48 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 258 N. What is the magnitude
What minimum distance are they from each other? The angle may be too large to use small angle approximation. Answer in units of m.
The heat of fusion of water is 80 cal/g. When 25 g of ice at 0oC is placed in the contents of a 12oz can of Coke(=350g) at 25oC, what is the final temperature of the beverage?
In baseball, the rules specify that the ball is 23.1 in circumference with a mass of 141 . (These numbers can vary slightly.) If a pitcher throws a fastball at 31.0 , its spin typically can be 24.0
A 70.0 kg astronaut pushed to the left of a spacecraft with a force F in gravity free space, The spacecraft has a total mass of 1.0 x 10(4)kg. During the push, the astronaut accelerates to the right
A train moving at a constant speed of 56.0 km/h moves east for 31.0 min, then in a direction 43.0° east of due north for 17.0 min, and then west for 79.0 min. What is the average velocity of th
The rod is released from an angle 1= 63.0o, and moves through its horizontal position at (B) and up to (C) where it stops with 2 = 109.0o, and then falls back down. Friction at the pivot is negligib
A force of 5 pounds is required to hold a spring stretched 0.3 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 0.9 feet bey
Two horizontal forces, 235 N and 183 N, are exerted on a canoe. If the these forces are applied in the same directions, find the net horizontal force on the crate.
On an amusement park ride, passengers are seated in a horizontal circle of radius 7.5m. The seats begin from rest and are uniformly accelerated for 21 seconds to a maximum rotational speed of 1.4 r
A child of mass 40.0 kg is sitting on a horizontal seesaw at a distance of 1.7 m from the supporting axis. What is the magnitude of the torque about the axis due to the weight of the child?
A railroad car of mass 3.00 104 kg moving at 2.50 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s
It is 150 cm from your eyes to your toes. You're standing 196 cm in front of a tall mirror. How far is it from your eyes to the image of your toes?
A 47.0 g golf ball is driven from the tee with an initial speed of 54.0 m/s and rises to a height of 23.2 m. a(a) Neglect air resistance and determine the kinetic energy of the ball at its highest poi
the maximum deceleration of your car is 12 ms^2. A. How much distance is between you and the deer when you come to a stop? B. What is the maximum speed you could have and still not hit the deer?
A speedboat moving at 32.0 m/s approaches a no-wake buoy marker 100 m ahead. How long does it take the boat to reach the buoy?
Assume that the springs have somehow not yet compressed to their maximum amount. How much are the springs compressed?
A pig slides down a 13.0 ° incline in twice the time it would take to slide down a frictionless 13.0 ° incline. What is the coefficient of kinetic friction between the pig and the incline?
Starting from rest a boat increases its speed to 4.17 m/s with constant acceleration. What is the boats average speed? If it takes the boat 4.7 s to reach this speed, how far has it travelled?
A 3.85 102 g glass coffee cup is at room temperature, 20.0°C. It is then plunged into hot dishwater, 82.0°C. If the temperature of the cup reaches that of the dishwater, how much heat does t
A 45.0 kg person, standing 1.3 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 2.80 m/s relative to the ground. Find the resulting angular speed of the di
Observers on the planet see the probe approaching at a speed of 0.67c. What is the speed of the probe as measured from the spaceship?
What is the terminal speed for an 78.0 skier going down a 43.0 snow-covered slope on wooden skis = 0.060?