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A block with mass 20 kg is sliding down a plane (coefficient of friction 0.4, inclined at 20 degrees) at a speed of 0.5 m/s to the left. how far does it go left along the plane before it comes to rest momentarily? Please explain this to me like a 2 year old.
a softball of mass 0.220kg that is moving with a speed of 7.6ms collides head-on and elastically with another ball
Gas in a cylinder similar to the one shown in the figure moves a piston with area 0.201 m^2 as energy is slowly added to the system. If 2.30 x10^3 J of work is done on the environment and the pressure of the gas in the cylinder remains constant at 1...
A Styrofoam cup holding 135 g of hot water at 93°C cools to room temperature, 22.0°C. What is the change in entropy of the room
an empty parallel plate capacitor is connected between the terminals of a 13.9-v battery and charges up. the capacitor
A fortune teller's glass ball is 10 cm in diameter. Her secreting is placed 6 m from the edge of the ball. The crystal ball is removed and a thin lens is placed where the center of the ball had been. If the image is still in the same position, what..
A car is accelerating while its horn is blowing. Just after the car passes a stationary person, the person hears a frequency of 960 Hz. 17.5 seconds later, the frequency heard by the person has decreased to 927 Hz. When the car is stationary, its ..
Trust is a pillar of healthy financial markets. Discuss how insider trading, hostile takeovers, and deceptive practices by financial institutions undermine that trust.
To hoist himself into a tree, a 72.0-kg man ties one end of anylon rope around his waist and throws the other end over a branchof the tree. determine the man's upward acceleration
Write the velocity of the puck in i and j notation and in magnitude and angle notation. What is the momentum of the puck
A 1000-kg car is moving at 30.0 m/s around a horizontal curve whose radius is 100 m. What is the magnitude of the frictional force required to keep the car from sliding
Given a series circuit of a 24 volt DC power supply, a switch, a 47 kΩ resistor, and two 100 μF capacitors in parallel, how long after the switch is closed, will the voltage across the capacitors be 14.5 Volts?
A 28 Vpp square wave (50% of the time at +28 volts and 50% of the time at 0 volts) is connected to a 4 ohm speaker. Calculate the average power delivered to the speaker
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