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A mother pushes her 9.5 kg baby in her 5kg baby carriage over the grass with a force of 110N @ an angle of 30 degrees with the horizontal. If the coefficient of friction between the wheels of the carriage and the grass is 0.14, calculate the weight, normal force, frictional force and the acceleration of the carriage.
A student holds a laser that emits light of wavelength 633nm. The beam passes through a pair of slits separated by 0.3mm, Find the speed of the first-order maxima on the screen
How much work does she do on the box of paper?
A golf ball is hit with an initial speed of 25 m/s at an angle of 39o above the horizontal. Find the time it takes to reach the highest point
A cord of length land mass per unit length p is under tension T with the left end fixed and the right end attached to a spring-mass system, as shown in Figure.
Determine, for the airflow through the frictionless and adiabatic converging-diverging duct of Example 11.8,
suming the eyeglasses are worn 2 cm in front of the eye, find the focal length needed for the diverging lenses of the glasses so the person can see distant objects.
The tallest spot on Earth is Mt. Everest, which is 8857 m above sea level. If the radius of the Earth to sea level is 6369 km, how much does the magnitude of g change between sea level and the top of Mt. Everest
A piece of wood is 0.640m long, 0.230m wide, and 7.00×10^?2 m thick. What is the mass of this volume of lead
According to present theories of light, in some experiments light seems to be: 1)composed of particles which can neither be created nor destroyed. 2)a particle whose quantized energy depends on its velocity. 3)a wave that moves from one place to anot..
when Earth observers receive word from the traveler that she has arrived?(c) How much older will Earth observers calculate the traveler to be (measured from her frame) when she reaches Vega than she was when she started the trip?
Provides a review of the concepts that play a role in this problem. A snowmobile moves according to the velocity-time graph shown in the drawing. What is the snowmobile's average acceleration through (a) segment A, (b) segment B, and (c) segment C?
A 2.00-µF and a 6.70-µF capacitor can be connected in series or parallel, as can a 48.0-k and a 100-k resistor. Compute the four RC time constants possible from connecting the resulting capacitance and resistance in series.
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