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If the car is moving at 30 m/s at the bottom of the dip, its mass is 800 kg, and the radius of curvature for the dip is 20 m, what is the normal force acting on the car in the dip.
What is the acceleration of the car at the bottom of the dip?
What is the minimum speed at the top of the hill (assuming R = 20 m here, too) for the car to leave the road?
What is the acceleration of the car if it just begins to leave the road?
A 75 kg person escapes from a burning building by jumping from a window 25-m above a catching net. Assuming that air resistance exerts a 95-N force on the person all through the fall, determine out the person's velocity just before hitting the net..
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
The nucleus 11-4 Be undergoes B- decay with a half-life of 13.8 sec. The atomic mass of 11-4 Be is 11.021660 u. What is the total kinetic energy of the decay products
Traffic is moving along the highway at 51 km/h on a rainy day. Illustrate what is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
Three 18-cm-long rods form an equilateral triangle. find the electric field strength at the center of the triangle
A particle moves along with a velocity of v=2t^3-32 m/s, where t is in seconds. At t_o= 0 seconds, s_o= 0 meters. Determine the particle's total distance traveled from 0 to 4 seconds
You and Maria each own identical spaceships. As you fly past Maria, you measure her ship to be 85m long and your own ship to be 100 m long. How fast is Maria moving relative to you
The volume of an ideal gas is adiabatically reduced from a volume of 200 L to a volume of 74.3 L. How many moles are in the gas
Rays of the Sun are seen to make a 35.6 angle to the vertical beneath the water. At what angle above the horizon is the Sun
Light from the sun arrives at the earth at the rate of about 1400 W/m^2 of area perpendicular to the direction of the light. find the number of photons per second that fall on each square meter of the earth's surface directly facing the sun
Eight 6.5 -W Christmas tree lights are connected in series to each other and to a 120 -V source. What is the resistance of each bulb
Two circular coils of current-carrying wire have the same magnetic moment. The first coil has a radius of 0.095 m, What is the radius of the second coil
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