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Q1. A highway curve with a radius of 555 m is banked properly for the car travelling 150 km/h. If a 1650 kg Porshe 928 S rounds the curve at 220 km/h, how much sideways force must the tires exert against the road if the car does not skid?
Q2. A 37.0 g piece of cadmium is at 10°C. If 365 cal of energy is added to the cadmium, what is its final temperature?
A female orb spider has a mass of 0.50g . She is suspended from a tree branch by a 1.1m length of 0.0020mm--diameter silk. how long does it take to reach the spider
Some of the earliest atomic models held that the orbital velocity of an electron in an atom could be correlated with the radius of the atom, what is the kinetic energy of this orbital electron
A 55.0 kg crate rests on a level floor at a shipping dock. What horizontal pushing force is required to just start the crate moving
When the starter motor on a car is engaged, there is a 330A current in the wires between the battery and the motor, What minimum diameter can the wires have if the voltage drop along the wires is to be less than 0.45V
A piece of radium has an activity of 10 mCi. What is the mass of the radium
A playground merry-go-round has radius 3-{rm m} and moment of inertia 3000-{rm{ kg}} cdot {rm{m}}^2 about a vertical axle through its center, and it turns with negligible friction.
An electron moving at a speed of vi= 0.960c in the positivex direction collides with another electron at rest, Based only on the original data given in the problem, use conservation of energy to find the speed of the second electron
A digital camera has 10 megapixels and each pixel has a depth of 32 bits. In units of megabytes calculate how much storage is needed for one image
Consider a 2.4 kg object sliding along a horizontal frictionless surface at 5.2 m/s. Find initial and final elastic potential energies
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 29.5°, find the critical angle for the liquid when surrounded by air
A 90 uF capacitor and a 15m H inductor are in series with a 185 O resistor, What is the resonant frequency
A child and sled with a combined mass of 57.0 kg slide down a frictionless slope. what is the height of the hill
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