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What is it treatment used for and what is the clinical goal of this treatment?
A 2.2kg mud ball drops from rest at a height of 15m .f the impact between the ball, find the average net force exerted by the ball on the ground
A man strikes one end of a thin rod with a hammer. The speed of sound in the rod is 15 times the speed of sound in air. what is the length of the rod
A 0.45kg piece of putty is dropped from a height of 2.5m above a flat surface. find the magnitude of the average force exerted on the putty
Given a binomial distribution with n = 20 and p = 0.76, would the normal distribution provide a reasonable approximation? Why or why not and find the area under the standard normal curve for the fol
Water is lifted out of a well 22.0m deep by a motor rated at 1.40hp .Assuming efficiency 90% , how many kilograms of water can be lifted in 1 min
A basketball of mass 270 g and radius 17 cm rolls with an initial speed of 2.5 m/s. What distance along the ramp will the ball travel before it comes to a stop
A grinder consists of a solid 15 kg disk with a diameter of 57 cm. A when active, the disk rotates at a rate of 83 rad/sec. find the rate of angular acceleration of the disk
You roll a ball along the floor for your dog to chase after and catch it. You roll the ball with an initial speed of 15 m/s, how far does the ball go before your dog catches it
A square metal sheet 3.3 cm on a side and of negligible thickness is attached to a balance and inserted into a container of fluid. What is the surface tension of the fluid
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 13.1 rpm in 10.7 s. what force is required at the edge
Two parallel wires are separated by a distance of 5.00 cm. Each wire carries a current of 2.69 A in the same direction, Is the force attractive or repulsive
The blades in a blender rotate at a rate of 6400 rpm. What is the angular acceleration as the blades slow down
An ac generator supplies a peak (not rms) voltage of 120.0 V at 60.0 Hz. It is connected in series with a 50.0-Ω resistor, What is the rms voltage of the generator
Kaitlynne is using a magnifying glass (f = 0.098 m) while trying to solder a computer circuit board. find the distance between the glass and the circuit board
A figure skater can increase her spin rotation rate from an initial rate of 1.0 rev every 2.8 s to a final rate of 3.3 rev/s. what is her final moment of inertia
A 3.91-kg fish swimming 2.13 m/s swallows an absent-minded 6.81-kg fish swimming toward it at a velocity, What is the velocity v of the smaller fish before lunch
If hot air is used instead of helium, what is the required volume of the balloon if the air inside can be maintained at 37.0 oC
Mercury flows through a horizontal pipe 1.40 cm in diameter and 0.6 m long. what is the rate of flow through the tube
A racing car of mass 950 kg accelerates from rest with an acceleration of 3.9 m/s^2 for 7.5 s. What is the net work done by the car
In an ice show a 65.0 kg skater leaps into the air and is caught by an initially stationary 85.0 kg skater. How much kinetic energy is lost?
When serving a tennis ball, the player hits it when its velocity is zero (at the highest point of a vertical toss). find the mass of the ball
A 0.500 kg hammer is moving horizontally at 6.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact
imagine a hole is drilled down to the center of the earth. a small mass m is dropped into the hole. find the speed of the mass just as it reaches the earth's center
A boxcar of mass 5.32 x 10^4 kg is rolling south at 3.49 m/s when it collides and couples with another boxcar that is rolling north at 5.12 m/s. Find the mass of the boxcar