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An aluminum container which has a mass of 0.350 kg holds 0.70 kg of water. The water and container are both at 45.0°C. Ice at 0.0°C is to be added to the water to cool it and the container to 5.0°C. How much ice is required?
An air-filled parallel-plate capacitor has plates of area 2.60 cm2 separated by 2.50 mm. The capacitor is connected to a 6.0 V battery. What is the charge on the capacitor
An infinite line of charge with linear density ?1 = 8.5 ?C/m is positioned along the axis of a thick insulating shell of inner radius a = 2.9 cm and outer radius b = 4.0 cm. What is the linear charge density of the insulating shell
The driver of a truck slams on the brakes when he sees a tree blocking the road. With what speed does the truck then strike the tree
You shine violet light through a diffraction grating (200 lines/cm) on a screen 2.0 m from the grating. The width of the light beam is 0.15 mm. How many slits will the light pass through
A 80 g, 37 cm long rod hangs vertically on a frictionless, horizontal axle passing by its center. A 15 g ball of clay traveling horizontally at 2.7 hits and sticks to the very bottom tip of rod.
A 1.83 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.542, How much force is needed to keep the book moving at constant speed once it begins moving
Two forces, and , act on the 7.00-kg block shown in the drawing. The magnitudes of the forces are F1=55.5 N and F2=33.5 N. Find the horizontal acceleration of the block
In a tape recorder, the magnetic tape moves at a constant linear speed of 5.6 cm/s. What is the angular speed of the take-up spool when it is empty, with radius r1 = 0.64 cm
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the period of a satellite in a geosynchronous orbit
The density of brass is 8.70 g/cm3. What is the ratio between the two moments of inertia, Ibrass : Ialuminum
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Find the speed of the wagon after the rock is thrown (a) directly forward in one case and (b) directly backward in another
A copper ball with a diameter of 5.00 cm is subjected to a pressure of 2.50 × 106 Pa. The bulk modulus for copper is 14.00 × 1010 N/m2. What is the change in the volume?
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