A 55.0 kg box hangs from a rope. What is the tension in the rope if: Part A The box is at rest? Express your answer with the appropriate units. Part B The box moves up a steady 4.90 m/s ? Express your answer with the appropriate units. Part C The box has vy = 4.60 m/s and is speeding up at 4.90 m/s2 ? The y axis points upward. Express your answer with the appropriate units. Part D The box has vy = 4.60 m/s and is slowing down at 4.90 m/s2 ? Express your answer with the appropriate units.

In a capacitor charging and discharging experiment with a resistor of 10 ohms, if we plot our data so LVC (volts) is in the y-axis and time (seconds) in the x-axis, what would the slope of the resulting line represent? how do we use this slope to calculate the capacitance of this capacitor?

When a constant force acts on an object, what does the object's change in momentum depend upon?

You have been called to testify as an expert witness in a trial involving a head-on collision. Car A weighs 1515 lb and was traveling eastward. Car B weighs 1125 lb and was traveling westward at 41.0 mph. The cars locked bumpers and slid eastward with their wheels locked for 18.5 ft before stopping. You have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . How fast (in miles per hour) was car A traveling just before the collision? (This problem uses English units because they would be used in a U.S. legal proceeding.)

Please show work!

a) A 80 kg baseball player jumps with a horizontal velocity of 8.1 m/s and collides with an 89

kg teammate who jumps with a horizontal velocity of 2.7 m/s in the opposite direction. If the players became tangled in mid-air, what would their combined horizontal velocity be after the impact?

A) 2.41 m/s   B) 2.99 m/s   C) 5.26 m/s   D) 5.54 m/s

b) After the collision, which horizontal direction do the tangled players move?

A) the players do not move after the collision   B) in the initial direction of the 80 kg player C) in the initial direction of the 89 kg player D) the players move vertically upward after the collision

c) A baseball (weight 5 oz.) thrown at 88 mph strikes a 30 oz. bat moving at a velocity of 72 mph. The coefficient of restitution between the baseball and bat is 0.49. How fast is the bat moving after it strikes the baseball?

A)   37.9 mph B) 48.2 mph C) 60.3 mph D) 63.1 mph

d) How fast is the baseball moving after striking the bat in part c)?

A) 54.6 mph   B) 116.3 mph C) 138.7 mph D) 141.5 mph

e) If the coefficient of restitution was higher in part c), how would that affect the velocity of the ball after the collision (no calculations needed)?

A) the final velocity of the ball would be zero B) the final velocity of the ball would be slower C) the final velocity of the ball would not change D) the final velocity of the ball would be faster

A skydiver jumps out of an airplane at a high altitude and reaches terminal speed.

Which of the following statements about the falling skydiver at terminal speed is FALSE?

1) The gravitational potential energy of the skydiver-Earth-atmosphere system is decreasing.

2) The thermal energy of the skydiver-Earth-atmosphere system is increasing.

3) The air resistance force does negative work on the skydiver.

4) At terminal speed, the kinetic energy of the skydiver is constant.

5) The gravitational force on the skydiver must be larger than the air resistance force in order to maintain a downward velocity.

The potential energy stored in the compressed spring of a dart gun, with a spring constant of 36.00 N/m, is 1.440 J. Find by how much is the spring is compressed. A 0.070 kg dart is fired straight up. Find the vertical distance the dart travels from its position when the spring is compressed to its highest position. The same dart is now fired horizontally from a height of 4.30 m. The dart remains in contact until the spring reaches its equilibrium position. Find the horizontal velocity of the dart at that time. Find the horizontal distance from the equilibrium position at which the dart hits the ground.

A soccer ball is kicked from the top of one building with a height of H₁ = 30.1 m to another building with a height of H₂ = 10.8 m. (It is not a very smart idea to play soccer on the roof of tall buildings.)

The ball is kicked with a speed of v₀ = 19.3 m/s at an angle of θ = 74.0° with respect to the horizontal. The mass of a size 5 soccer ball is m = 450 g. What is the speed of the soccer ball, when it lands on the roof of the second building? The soccer ball is kicked without a spin. Neglect air resistance.

An unstable nucleus of mass 1.7 ✕ 10−26 kg, initially at rest at the origin of a coordinate system, disintegrates into three particles. One particle, having a mass of m1 = 1.0 ✕ 10−27 kg, moves in the positive y-direction with speed v1 = 5.8 ✕ 106 m/s. Another particle, of mass m2 = 9.0 ✕ 10−27 kg, moves in the positive x-direction with speed v2 = 3.8 ✕ 106 m/s. Find the magnitude and direction of the velocity of the third particle. (Assume that the +x-axis is to the right and the +y-axis is up along the page.) magnitude m/s direction ° counterclockwise from the +x-axis

Medical Coding and Billing

In a word document write (600 - 900 Words) Using APA Referencing style, Discuss the following:

The Centers for Medicare and Medicaid Services (CMS) released the results from their Comprehensive Error Rate Testing (CERT) earlier this year 2018. The results showed a 9.5% overall improper payment rate for 2017, representing $36.21 billion in improper payments. If any medical practice received some of these improper payments, They could be forced to provide a refund plus incur other additional fees.

Discuss on general basis, the most common coding errors and how to prevent them from occurring at any health care practice.

A 1500 kg car starts from rest and drives around a flat 50-m-diameter circular track. The forward force provided by the car’s drive wheels is a constant 1000 N.
A. What are the magnitude and direction of the car’s acceleration at t = 10 s? Give the direction as an angle from the r-axis.

B. If the car has rubber tires and the track is concrete (use book or other reference to find coefficients of friction), at what time does the car begin to slide out of the circle?