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Q. In a physics laboratory experiment, a 6 kg is pushed across a flat table by a horizontal force F.
A. if the box is moving at a constant speed of 0.35m/s and the coefficient of kinetic friction is 0.12. What is the magnitude of F?
B. what is the magnitude of F if the constant speeding of with a constant acceleration of 0.18m/s²
A ball with a mass of 0.75 kg is thrown vertically into the air with an initial velocity of 10 m/s. establish the velocity of the ball when it hits the ground if it was initially released 2.0 m above the ground.
The magnetic field has been measured to be horizontal everywhere along a rectangular path x = 22 cm long and y = 5 cm high. Along the bottom the average magnetic field B1 = 1.3 10-4 tesla, along the sides an average magnetic field B2 = 1.0 10-4 te..
A charge of +2q is fixed to one corner of a square, while a charge of -1q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of square, so the potential is zero at each of the two empty c..
Study of the fragment
A non-uniform bar 5 meters has a center of gravity 1 meters from the heavy end. If it is placed on the edge of a block 1 meters from the light end and a weight of 1497N is placed at the light end of the bar, it will be balanced. What is the weight..
The tortoise can run with a speed of 0.1 m/s and the hare can run with a speed of 2 m/s. They start their race at the same time, but the hare, feeling confident, stops along the way for a two minute nap, and the tortoise wins by the length of his ..
A 2.80 kg gold bar at 98 degrees celcius is dropped into 0.34 kg of water at 23 degree celcius. what is the final temperature? assume the specific heatof gold is 129 J/kg
A uniform plank of length 5.8 m and weight 217N rests horizontally on two supports, with 1.1m of the plank hanging over the right support. To what distance x can a person who weighs 460 N walk on the overhanging part of the plank before it just beg..
A Federation starship (7.5 multiplied by 106 kg) uses its tractor beam to pull a shuttlecraft (5.0 multiplied by 104 kg ) aboard from the distance of 12 km away.
A pipe open only at one end has a fundamental frequency of 214 Hz. A second pipe, initially identical to first pipe, is shortened by cutting off the portion of the open end. Now, as both pipes vibrate at their fundamental frequencies, the beat freque..
What is effectiveness of battery as an energy storage device
The loaded cab of an elevator has a mass of 3.0 x10^3 kg and moves 157m up the shaft in 23s at constant speed. At what average rate does force from the cable do work on the cab.
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