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Two crates rest on the floor one next to the other. A man pushes with a horizontal force of 600 N on the larger (50.0 kg), which, in turn, pushes the other (25.0 kg) so that both slide as he walks along. Each crate experiences a friction force opposing the motion equal to 50% of its weight. Determine the acceleration of each crate.
What is the force exerted by one crate on the other?
Two point charges are placed on the x-axis. Charge Q1=+3 microC at x==-6cm and charge Q2=+3microC at x=+6cm. Find the magnitude and direction of the total electric field at point P
A small, spherical bead of mass 3.05 g is released from rest at t = 0 in a bottle of liquid shampoo. The terminal speed is observed to be vT = 1.80 cm/s. Find the value of the resistive force when the bead reaches terminal speed
1.6 kg object moving at a speed of 4.3 ms strikes an 0.86 kg object initially at rest. immediately after the collision
A resting person requires 14.5-L of per hour to maintain metabolic activities. Such a person breathes in 0.510L of air at approximately 32.0 degrees celsius with each breath. The inhaled air is 20.9 percent while the exhaled air is 16.3percent.
a railroad car containing explosive material is initially traveling south at a speed of 4.9 ms on level ground. the
A car travelling at 16 m/s runs out of gas while travelling up a 21 degree slope. How far up the hill would it coast before starting to roll back down.
a stone is projected at a cliff of height h with an initial speed of 44.0 m/s directed at an angle θ0 = 62.0° above the horizontal. find the height h of the cliff
What is the pressure drop due to the Bernoulli effect as water goes into a 3.00-cm-diameter nozzle from a 9.00-cm-diameter fire hose while carrying a flow of 40.0 L/s
An object is located on the inner side of a spinning cylinder with an angular velocity of 20rad/s. what is the radius of the cylinder
In living tissue, about one out of every 10-12 carbon atoms are the 14C isotope. how long ago did the owner of the bone die
The electric field everywhere on the surface of a thinspherical shell of radius 0.720 m is measured to be equal to 890 N/C andpoints radially toward the center of the sphere
As the fragment falls through the atmosphere, it is heated and some of the material is vaporized. Explain how you could determine the composition of this hot vaporized material from the light it emits.
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