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A hoop of radius 0.200 m and mass 0.470 kg, is suspended by a point on it2s perimeter. if the hoop is allowed to oscillation side to side as a pendulum, what is the period of the oscillation?
The combined mass of the sleigh and team is 390kg. What is the average power generated by the team during the initial push-start acceleration phase?
A Carnot engine performs work at the rate of 470 kW while using 650 kcal of heat per second. If the temperature of the heat source is 590°C, at what temperature is the waste heat exhausted?
Explain how the operation of a simple machine alters the force and the distance moved
Mass 15 grams is excited in a resonant mode with four nodes and three antinodes(the third harmonic , n=3). what tension T is the string under if the frequency of this resonance is f= 44 Hz?
What is the angular momentum of the disk after the cord end has been pulled through a distance 3 meters if the disk starts from rest?
A 16.0 -kg box is released on a 35^circ incline and accelerates down the incline at 0.10 m/s^2. Find the friction force impeding its motion and what is the coefficient of kinetic friction?
Find the magnitude of the emf induced in the loop after exactly time 6.00 has passed since the circumference of the loop started to decrease.
A positive charge of 8.33 x 10^-5 C experiences a force of .109 N when located at a certain point. What is the electric field intensity at that point?
Two charged bodies exert an electrostatic force of 144 N on each other. If the distance between them is quadrupled and the magnitude of one charge is cut in half, what is the new force between them
What is the direction of the force exerted on Jenny's car during the collision and what is the direction of the acceleration of Jenny's car during the collision?
Find a formula for a electrical flux on a sphere for a point charge at the center of the sphere with a hole in the sphere.
A proton (mass m = 1.67 10-27 kg) is being accelerated along a straight line at 3.6 1015 m/s2 in a machine. The proton has an initial speed of 2.4 107 m/s and travels 3.5 cm. What is the speed and
Be sure to describe forces by name and mention charging by induction, conducting, or rubbing, if it is appropriate. Also explain what atoms on Mars must be composed of.
An object on a screen positioned 5 m from the object. (a) What type of mirror is required? (b) Find p,q,f and R (c)Draw a ray diagram.
A bicycle has wheels with a diameter (DIAMETER, not radius) of 0.680 m. It accelerates uniformly and the rate of rotation of its wheels increases from 175 rpm to 295 rpm in a time of 16.5 s. Find t
A dragster starts from rest and accelerates down a track. Each tire has a radius of 0.320 m and rolls without slipping. At a distance of 365 m, the angular speed of the wheels is 292 rad/s. Determi
Assume that the plant has and overall efficiency of 40% and that each fission produces 200MeV of thermal energy. Calculate the mass of U-238 consumed each day.
After being accelerated through a potential difference of 250V, the ion enter a magnetic field of 0.50T, in a direction perpendicular to the field. Find the radius of the path of the ion in the fie
A hiker makes four straight-line walks A 13 km at 147? B 17 km at 13? C 33 km at 96? D 21 km at 197? in random directions and lengths starting at position (41 km, 41 km). Which vector will return t
The auditory canal, leading to the eardrum, is a closed pipe 3.4 cm long. Find the approximate value (ignoring end correction) of the lowest resonance frequency.
A dog pulls on a pillow with a force of 2.2 N at an angle of 40° above the horizontal. Find the x and y components of the force.
The car comes to rest after 0.450s with an average acceleration 90.0 m/ s in the direction opposite that the car's velocity. what was the speed in km/ h of the car before collision?
a proton moves at a speed of 2x10^7 m/s at right angles to a magnetic field with a magnitude of .10 T. Find the magnitude of the acceleration of the proton
A water skier is pulled by a net force of 144 N and has an acceleration of 1.8 m/s2. What is the mass of the skier?