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The acceleration of a race car for the first few seconds of the race can be approximated by the a(t) = A + Bt linear formula, where t is the time measured in seconds and the values of the constants A and B are: A = 20.6 m/s2 and B = -2.40 m/s3. What is the speed of the car 1.93 s after it starts from rest? 3.53 x 101 m/s
How much distance does the car cover during this 1.93 s time period?
A series RLC circuit consists of a 92.0 ohm resistor, a 0.180 H inductor, and a 42.0 μF capacitor. It is attached to a 120 V/60 Hertz power line. Determine what is the phase angle
What is the direction of an electric field that will balance the weight of a 3.7g plastic sphere that has been charged to -3.1nC ? Upward or Downward
A woman stands on a scale in a moving elevator. Her mass is 59.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. What does the scale read during the acceleration
a positive charge q1 4.2 10-8c is located at -2.0 cm 5.0cm a negative charge q2 -6.410-8 is located at -3.0cm 0.0cm
a u-tube contains mercury with a density of 13,600 kg/m^3. it is open on one end, and the other end is connected to a boiler, what is the gauge pressure at point A in the boiler
Two bicycle tires are set rolling with the same initial speed of 3.40 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. Find the coefficient of rolling friction for the tire under low pr..
Rutherford's scattering experiments gave the first indications that an atom consists of a small, dense, positively charged nucleus surrounded by negatively charged electrons. What is the uncertainty of its momentum
an ore sample weighs 20.0n in air. when the sample is suspended by a light cord and totally immersed in water the
A solid wood door 1.00 meter wide and 2.00 meter high is hinged along one side and has a total mass 53.0 kilogram. Evaluate the final angular speed of the door
A golfer imparts a speed of 29.6 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation.
If the create has a mass of 110 and is 1.60 tall and 0.80 in depth and width, what is the minimum force needed to make the crate start tipping? (Assume the center of mass of the crate is at its center and static friction great enough to prevent sl..
A sheet of acetate paper is wrapped around a clear glass container. A thermometer is placed inside the glass container and held at a distance of 20 cm from a 100 W light bulb. Four different color acetate papers are used (red, green, blue, yellow)..
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