Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. Assume the slope angle is θ = 39.5 degree, the snow is dry snow with a coefficient of kinetic friction μk = 0.0400, the mass of the skier and equipment is m = 78.0 kilogram, the cross-sectional area of the (tucked) skier is A = 1.30 m2, the drag coefficient is C = 0.150, and the air density is 1.20 kg/m3.
(a) Find what is the terminal speed?
m/s (b) If a skier can vary C by a slight amount dC by adjusting, say, the hand positions, find the corresponding variation in the terminal speed? (dvt/dC)
m/s
Runner A is initially 4.8 km west of a flagpole and is running with a constant velocity of 4.2 km/h due east. Runner B is initially 4.0 km east of the flagpole and is running with a constant velocity of 5.2 km/h due west. What will be the distance of..
A 1940-kg car experiences a combined force of air resistance and friction that has the same magnitude whether the car goes up or down a hill at 32.2 m/s. At what angle is the hill inclined above the horizontal
A cylindrical storage tank has a radius of 1.23 m. When full to a height of 3.64 m, it holds 13400 kg of a liquid industrial solvent. What is the density of the solvent?
Air is confined at atmospheric pressure (101.3kPa) in a cylinder whole volume is 0.22 m^3. When 8.0 kcal of heat is added, the volume increases at constant pressure to 0.35m^3. Calculate the increase in internal energy of the air.
A 2.97-kg projectile is fired with an initial speed of 133 m/s at an angle of 28° with the horizontal. At the top of its trajectory, the projectile explodes into two fragments of masses 0.97 kg and 2 kg. At 3.87 s after the explosion, the 2-kg fragme..
A 2500lb car collides with a 25,000 lb truck. What force is exerted on the car by the truck
a 1.48 cm diameter solenoid passes through the center of a 5.95 cm diameter loop. the magnetic field inside the
What is the minimum area (in square meters) of the top surface an ice slab 0.251 m thick floating on fresh water that will hold up a 1060 kg automobile
An electron in a television tube travels the 22 cm distance from the grid to the screen at an average speed of 7.00 107m/s. How long does the trip take
Power to a cooling fan is turned off when it is turning at 720rpm. The fan makes 1350 revolutions before it comes to rest. Calculate the fan's average angular acceleration
a 11.5 nc charge is at x 0 cm and a -1.0 nc charge is at 6 cm. at what point or points on the x-axis is the electric
The nucleus of a hydrogen atom is a single proton. The radius of a proton is approximately 1 fm (1 multiplied by 10âˆ'15 m). What is the approximate volume of a proton
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd