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A car is driven around a circular track. Which would have a greater effect on the magnitude of its acceleration, reducing the speed by half or moving to a track with double the radius? Please show your proof or calculations.
1. Which object is providing the centripetal force in this experiment?
2. When you go around a corner in a car, do you feel centripetal or centrifugal (Fg) force acting upon you?
A river flows south with a velocity of 20 km/h. A boat has a maximum speed of 50 km/h in still water. In the river, at maximum throttle, the boat heads due west. What are the resultant speed and direction of the boat?
At a certain point in space there is an electric field E = (0.40 i + 0.60 j) x 1011 N/C. (Items in bold are vectors.) Discover the force on a particle of charge of -3.70 nC when it is placed at the point.
A boy pulls a 20-kg box by a 50N force at 37 degrees above a horizontal surface. The coefficient of kinetic friction among the box and the horizontal surface is 0.15, and the box is pulled over a distance of 25m. a) What is the work done by the boy? ..
What is their orbital period?
A unifrom solid disk is rolliong on a level surface with a speed of 45.0 m/s. How far along the incline will the disk roll
An airplane has a mass of 1.8×10^6 kg , and the air flows past the lower surface of the wings at 94 m/s .f the wings have a surface area of 1300 m^2, how fast should the air flow over the upper surface of the wing if the plane is to stay in the ai..
A cylinder is inscribed in a right circular cone of height 2.5, What are the dimensions of such a cylinder which has maximum volume
The total energy of a particle is 3.97 times its rest energy. The mass of the particle is 2.8 × 10^-27 kg. With what speed is the particle moving and what is the particle's momentum
a wire carries a steady current of 4.50 a. a straight section of the wire is 0.750 m long and lies along the x axis
Length A is measured to be 7.5cm±0.3 cm and length B is 7.0cm±0.6cm. What is the difference between the two lengths, LB - LA
The planet Mercury has a mass of 3.3x10^23 kg and a radius of 2440 km. what is your mass on Mercury
the planet uranus has a satellite ariel which travels in an orbit of radius 1.910times108 m with a period of 2.52
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