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A 710 N man stands in the middle of a frozen pond of radius 4.0 m. He is unable to get to the other side because of a lack of friction among his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the north shore at a speed of 4.0 m/s. How long does it take him to reach the south shore?
After being kidnapped and placed in the trunk of a car, you discover you are able to pry open the trunk. What was your average acceleration during this trip
A Martian leaves Mars in a spaceship that is heading to Venus. On the way, the spaceship passes earth with a speed v = 0.86c relative to it. What is the time of the trip (in seconds) as measured by the Martian
On a workday the average decibel level of a busy street is 84 dB, with 100 cars passing a given point every minute. what is the decibel level of the street
An experimental plane just after takeoff climbs with a speed of 500km\h at an angle of 37o with the horizontal. Find at what rate is the plane gaining altitude
A soap film whose index of re%uFB02ecetion is 1.33 is suspended in air. When sunlight strikes the film nearly perpendicularly, Find the thickness of the film
The size of an oil container measures 30m in length x 30m in width and a height of 10 m. Estimate the density of the crude oil inside the container
a blow-dryer and a vacuum cleaner each operate with a voltage of 120 v. the current rating of the blow-dryer is 11 a
two identical point charges of q 1.25 x 10-8 c are separated by a distance of 0.90 m. what is the minimum amount of
a uniform magnetic field b with magnitude 0.012 t is directed vertically upward throughout the volume of a laboratory
A hydraulic ram 200mm in diameter and 1.2 m long moves wholly within a concentric cylinder 200.2mm in diameter, What is the viscous force resisting the motion when the ram moves at 120mm . s-1
The two strands of the helix-shaped DNA molecule are held together by electrostatic forces as shown in the Figure 16-44 in the textbook. Estimate the net force between a cytosine and a guanine
Jack and Jill ran up the hill at 3.5m/s . The horizontal component of Jill's velocity vector was 2.5m/s . What was the angle of the hill? What was the vertical component of Jill's velocity?
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