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A 2,00 kg piece of steel with a temperature of 70c is submerged in 1,0 kg of water at 15c.At what temperature does the metal.water syestem reach equilibrium? The specific heat of steel is 0,107cal/(gxK)
a block of unknown mass is attached to a spring with a spring constant of 7.50 nm and undergoes simple harmonic motion
Given two vectors A? = 4.00 i^+ 7.80 j^ and B? = 5.60 i^? 2.00 j^ , find the scalar product of the two vectors A? and B?. Find the angle between these two vectors
A string under a tension of 58.5 N is used to whirl a rock in a horizontal circle of radius 2.75 m at a speed of 20.5 m/s on a frictionless surface, What is the breaking strength, in newtons, of the string
Light of wavelength 380 nm is incident on the face of a silica prism at an angle of 1 = 64.2 (with respect to the normal to the surface). Find the angle between the incident and emerging rays
A lady with mass m1 is ice-skating toward the east on a frictionless frozen lake when she collides with a mass of mass m2 who is ice-skating toward the west. Find the maximum force on the man from the lady, including direction
question a multi-turn square loop of wire 2.0 cm on each side is oriented so that a 5.00 mt magnetic field makes a
Unpolarized light passes through 5 parallel ideal polarizing filters. What is the ratio of the initial intensity to the final intensity of the light
In the Challenger Deep of the Marianas Trench, the depth of seawater is 10.9 km and the pressure is 1.16 x 10^8Pa (about 1.15 x 10^3 atm). What is the density of seawater at this depth
Electrons are accelerated through a voltage difference of 175 kV inside a high voltage accelerator tube. What is the final kinetic energy of the electrons?
How much current is drawn with a 150 W lamp operating at its rated voltage of 120 V? what is the resistance f the lap when operating.
A 26.2-kg dog is running northward at 3.05m/s, while a 5.30-kg cat is running eastward at 3.53 m/s. find the direction and magnitude of the owner's velocity
in a rectangular coordinate system a positive point charge q 2.50 nc is placed at the point x 0.160 m y 0 and an
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