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Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 79 kg, and the mass of the woman is 54 kg. The woman pushes on the man with a force of 47 N due east. Determine the acceleration (magnitude and direction) of
(a) the man and
(b) the woman.
What is the escape speed on a spherical asteroid whose radius is 500 km and whose gravitational acceleration at the surface is 2.7 m/s2
An airplane maintains a speed of 567 km/h relative to the air it is flying through as it makes a trip to a city 745 km away to the north.
Find out the x and y components of the force.
Determine out the work completed to move the particle from x = 0 to x_3 = 10.5 m graphically by determining the area under the F_x vs. x graph.
Two snowballs are moving directly toward each other along a vertical axis. Just before the snowballs collide, Draw a before and after picture of the collision
By how much does a 10-cm-thick layer of glass wool insulation decrease the heat loss through the roof of a house (area 100 m2, Rf = 0.15 m2K/W for the roof alone, Rf = 2.5 m2K/W for 10-cm-thick glass wool)
A hydrogen atom is in its ground state when its electron absorbs a 48 keV photon. What's the energy of the resulting free electron
A 0.29 F capacitor is desired. What area must the plates have if they are to be separated by a 3.7 mm air gap
Consider a beam of electrons passing through a region with crossed electric and magnetic fields. What is the speed (in m/s) of the electrons
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.2 m/s2. How fast will the automobile be traveling at that instant
How much work is done in stretching the spring. Find out the constant acceleration of the car.
A 120g ball moving at 0.50 m/s in the + x direction is subject to a 0.25 N force in the - y direction for 2.5 s, Find the balls final speed
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