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A highway curve has a radius of 0.14 km and is unbanked. A car weighing 12 kN goes around the curve at a speed of 24 m/s without slipping. What is the magnitude of the horizontal force of the road on the car?
A high-speed lifting mechanism supports a 875 kg object with a steel cable 23.0 m long and 4.00 cm2 incross-sectional area. Determine the elongation of the cable
The length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. What is the temperature of the liquid
the following frequency distribution analyzes the scores on a test. find the class boundaries of scores interval
A projectile is launched with initial speed of 60 m/s at an angle of 30 degrees above horizontal. the projectile lands on hillside 4 seconds later. what is velocity at the highest point of trajectory
A brick is thrown upward from the top of a building at an angle of 15 degree to the horizontal and with an initial speed of 15 m/s. If the brick is in flight for 3.0 second, determine how tall is the building
The momentum of a soccer player is 100kg-m/sec and he hits a soccer ball with a mass 0.1 kg, find the speed(velocity) of the soccer ball
A group of hikers hears an echo 5 s after shouting. If the temperature is 16.0°C, how far away is the mountain that reflected the sound wave.
A 1.50m long ramp is inclined at 20 degree to the horizontal. A solid ball is released from rest at the top of the ramp. Find its translational acceleration
A speeder is pulling directly away and increasing his distance from a police car that is moving at 25 m/s with respect to the ground. Obtain the speeder speed with respect to the ground
Westerly winds coming off the Pacific Ocean rise over the Rocky Mountains, what is the surface temperature and relative humidity on the leeward side of the mountains
A hunter wishes to cross a river that is 2.0 km wide and flows with a speed of 5.0 km/h parallel to its banks. What is the minimum time necessary for crossing
A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.8 104 rev/min. Find the drill's angular acceleration
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