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With an initial velocity of 20 km/h, a car accelerated at 8 m/s2for 10 seconds.
a) What is the position of the car at the end of the 10 seconds?
b) What is the velocity of the car at the end of the 10 seconds?
Initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of ?1 = ?2 = ?3 = 50 deg with the direction of the y-axis
When venturing forth on Planet X, you throw a 5.01 kg rock upward at 12.6 m/s, What does the rock weigh on planet X
In a pool game, the cue ball, which has an initial speed of 8 m/s, make an elastic collision with the eight ball, which is initially at rest. Find the direction of motion of the cue ball after the collision
Musicians can use beats to tune their instruments. One flute is properly tuned and plays the musical note A at exactly 440 Hz. By how much she must shorten her flute to bring it into tune
Att= 0 an electron crosses the positivey-axis (sox= 0) at30cm from the origin with velocity6.105m/s in the positivex-direction. It is in a uniform magnetic field.
A 200.0-kg object is attached via an ideal pulley system to paddle wheels that are submerged in 0.480 kg of glycerin at 20.0 °C in an insulated container as shown. determine the final temperature of the glycerin
A student sits on a rotating stool holding two 3.6-kg objects. When his arms are extended horizontally, Find the new angular speed of the student
Two particles with Q1 = 46 µC and Q2 = 87 µC are initially separated by a distance of 2.8 m and then brought closer together therefore that the final separation is 1.4 m. What is the change in the electric potential energy?
A meter stick is initially at rest in a horizontal position. It is free to rotate about the 50 centimeter point. Find the magnitude of the total torque on the meter stick
Suppose that the resistance of such a resistance thermometer is 105? when its temperature is 17.2 °C. The wire is then immersed in a liquid, What is the temperature of the liquid
A hiker is wearing wool clothing of 0.40 cm thickness to keep warm. Her skin temperature is 39° C and the outside temperature is 8.0° C. what is the rate of heat conduction through her clothing
consider a metal rod, length = .30m, cross sectional area=0.0010m^2, temperature difference between the ends is 65*C. What is the thermal conductivity of the metal
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