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A(n) 60-g ice cube at 0°C is placed in 730 g of water at 28°C. What is the final temperature of the mixture? °C.
What is an expression for , the position of mass I as a function of time? imagine that position is measured in meters and time is measured in seconds.
Find the moment of inertia of the plate for an axis that lies in the plane of the plate, passes through the center of the plate, and is perpendicular to the axis in part A
A block of mass 2.50 kg is pushed 2.00 m along a frictionless horizontal table by a constant 16.0 N force directed 25.0° below the horizontal, Determine the work done by the force of gravity
A bucket filled with water has a mass of 64.9 kg and is attached to a rope that is wound around a 0.4 m radius cylinder. Illustrate what torque does the bucket produce around the center of the cylinder?
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the force exerted on this sphere
A certain atom of has 89 protons. Assume that the nucleus is a sphere with radius 7.25 fm and with the charge of the protons uniformly spread through the sphere. At the nucleus surface what is the magnitude of the electric field produced by the pr..
A certain loudspeaker has a diameter of 45 cm. At what frequency would the wavelength of sound it emits in air be equal to its diameter.
An object has a kinetic energy of 257J and a momentum of magnitude 21.8 kg·m/s. Find out the speed and the mass of the object.
Two protons are separated by a distance of 0.06 cm. What is the magnitude of the electric force for the protons
A ski jumper takes off at an angle 20 degrees above the horizontal with a speed of 30.0m/s, Calculate the time of flight
Use the simulation in the cannon interactive in this section to answer the following questions. (a) Does cannonball's horizontal velocity change as it moves through the air? (b) Does its vertical velocity change? (c) If you enhance the cannonball's h..
A circular surface with a radius of 0.062 m is exposed to a uniform external electric field of magnitude 1.55 104 N/C, What is the angle between the direction of the electric field and the normal to the surface
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