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A cart has a mass of 851.8 g the attached string has a tension of 0.36 N and a displacement of 40.9 cm.
a) what is the work done by the tension?
b) if the max velocity of the cart is 0.580 m/s what is the kinetic energy of the cart?
The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.50 cm, respectively, What is the final overall magnification of the microscope
A child's toy consists of a piece of plastic attached to a spring in the figure below. The spring is compressed against the floor a distance of 2.00 cm, estimate the force constant of the spring
A 45.0kg girl is standing on a 170 kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. The girl begins to walk along the plank at a constant velocity of 1.53m/s relative to the plank.
A spherical Christmas tree ornament is7.18 cm in diameter.What is magnification of the image ofan object placed 8.6 cm away from the ornament.
At what angle to the surface must a diver submerged in a lake look toward surface to see the setting Sun just all along the horizon.
A traffic controller at the airport watches a commercial plane circling above at a distance of 16.0 km as the pilot waits for clearance to land
A car with a mass of 2000kg is moving with a speed of 55 mph and enters a circular turn at level ground. What is the angular velocity of the car
A 50.0 g ball of copper has a net charge of 1.7 µC. What fraction of the copper's electrons have been removed
Consider a pump that is required to compress air in a factory. The cylinder in the pump has an inner diameter of 2.00 cm and length 60.0 cm. Calculate the volume and temperature of the compressed air
An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 950 m, horizontal distance 19.2 km, What is the distance between the two aircraft
A parallel plate capacitor is connected to a battery. The space between the plates is filled with air. Find the electric field inside the dielectric
In the system shown in the figure below, a horizontal force F with arrowx acts on an object of mass m2 = 8.60 kg. The horizontal surface is frictionless. Consider the acceleration of the sliding object as a function of Fx.
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