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A cube of ice is taken from the freezer at -9.2°C and placed in a 98 g aluminum calorimeter filled with 299 g of water at room temperature of 20°C. The final situation is observed to be all water at 18°C. What was the mass of the ice cube?
A beam contains 4.0 108 doubly charged positive ions per cubic centimeter, all of which are moving north with a speed of 1.3 105 m/s
a person moves a full sam's club shopping cart mass=80.0 kg from rest to a velocity of 1.30 m/s over a distance of 1.80 meters to secure a spot in check out line. Determine the change in the chart's momentum
A rubber ball (mass 0.27 kg) is dropped from a height of 1.8 m onto the floor. What is the magnitude and direction of the impulse imparted by the floor to the ball
A fan blade rotates with angular velocity given by ?z(t)= ? ? ? t2, where ? = 4.60rad/s and? = 0.795rad/s3, Calculate the angular acceleration as a function of time
An inductor (L = 400 mH), a capacitor (C = 4.43 F), and a resistor (R = 500 ?) are connected in series. A 50.0-Hz AC source produces a peak current of 250 mA in the circuit. (a) Calculate the required peak voltage Vmax. (b) Determine the phase ang..
A solid non-conducting sphere has a uniform volume charge density and a radius of 6 cm. The total charge on the sphere is 2nC.
An audio amplifier, represented by the AC source and the resistor R, delivers alternating voltages at audio frequencies to the speaker. what is the average power input into the speaker
The distance from the point on the surface of Earth to a point on a surface of the moon is measured by aiming a laser light beam at the reflector on the surface of moon and measuring the time required for the light to make a round trip.
A car traveling at 30 m/s runs out of gas while traveling up a 20° slope. How far up the hill will it coast before starting to roll back down
A 1.0-cm-thick layer of water stands on a horizontal slab of glass. What is the ray's direction of travel in the glass
A meter stick is suspended from one end (I = 1/3 mL^2) and oscillates freely with small amplitude. Find the length of a simple pendulum that would have the same period of oscillation as the meter stick.
A cylindrical beaker of height 0.100 and negligible weight is filled to the brim with a fluid of density = 890 . When the beaker is placed on a scale, its weight is measured to be 1.00 .(Figure 1)
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