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210 g uniform rod pivoted at one end. The other end is attached to a horizontal spring. The spring is neither stretched nor compressed when the rod hangs straight down. The axle is at the top of th
You want to take a bath with the water temperature at 35.0°C. The water temperature is 38.0°C from the hot water tap and 11.0°C from the cold water tap. You fill the tub with a total of
The first known collision between space debris and a functioning satellite occurred in 1996: At an altitude of 750 km, a year-old French spy satellite was hit by a piece of an Ariane rocket that had
Compare two side-by-side springs, one linear and one non-linear. Adjust the magnitude of k3 so that the two masses start with the same initial force
A jetliner with an airspeed of 1000 sets out on a 1600 flight due south. To maintain a southward direction, however, the plane must be pointed 15 west of south.If the flight takes 110 minutes , wha
Repeat the procedure of part a, but use your hand instead of spheres 2 and 3. Is the effect bigger or smaller? Explain why. E. What is the moral to the story told in this section?
A jetliner with an airspeed of 1000 sets out on a 1600 flight due south. To maintain a southward direction, however, the plane must be pointed 15 west of south. If the flight takes 110 min, what is
a toy train with 1.2kg mass is moving at a stright line platform with a velocity 12m/s. It collides another toy train of 0.9kg mass with velocity of 7m/s. If e = 0.8, what is the velocit
A cherry bomb explodes into three pieces of equal masses. One piece has an initial velocity of 15 m/s. another, piece has an initial velocity of 6 m/s(x), -5 m/s(y). what is the velocity of the thir
An emf is induced in a conducting loop of wire 1.24 m long as its shape is changed from square to circular. Calculate the average magnitude of the induced emf if the change in shape occurs in 4.03 s
A tank of water sits at the edge of a table of height 1.6 meter. The tank springs a very small leak at it's base, and water sprays out a distance of 1.1 meters from the edge of the table. What is t
When you lift a bowling ball with a force of 85 , the ball accelerates upward with an acceleration . If you lift with a force of 96 , the ball's acceleration is 2 . Find the weight of the bowling b
Why do the hair strands spread out from each other? Why do they spread out radially from the head? Is hair a conductor or insulator? How can we find out?
A circular wire loop of radius 13.0 cm carries a current of 3.66 A. It is placed so that the normal to its plane makes an angle of 34.8° with a uniform magnetic field of magnitude 9.70 T. (a) C
A piece of steel rests on a wooden board, with frictional coefficient 0.40 between steel and wood. Find the maximum inclination angle for the board before the steel begins sliding.
A rock of mass 43 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 252 N. What is the magnitude
A uniform electric field of magnitude 450 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.10 cm.
What is the maximum slit width a for which this occurs? A. a = /2 X B. a = C. a = 2 D. The answer depends on the distance.
The steam required is 20 pounds per hour per ton of refrigeration produced, and the heat required to evaporate water is 950 Btu per pound. Assume the electrical requirements to be 0.03kW per ton and
Exists between any 2 sliding surfaces. The size of the friction force: Depends on the microscopic details of 2 sliding surfaces. The materials they are made of Are the surfaces smooth or rough? Are
The ball is launched at a speed of 45 m/s at an angel of 29 above the horizontal. When the ball lands, it is at the same level as the tee. On the distant planet, what is (a) the maximum height and (
A 0.200-kg block along a horizontal track has a speed of 1.80 m/s immediately before colliding with a light spring of force constant 44.2 N/m located at the end of the track. (a) What is the spring'
What do you think will happen to the volume of a diver"s wet suit when he goes down as he dives in the ocean? What problems do you think this might cause the diver?
Find the angular velocity of a wheel that rotates at 120rpm.(b). what will be the tangential velocity of the outside of the wheel if its radius is 25cm
A 16 kg steel ball is launched from a cannon at an angle of 20 degrees above the horizontal. The cannon exerted an average force of 1200 Newtons on the ball during launch. Now that the ball is in th