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you throw a book straight up from s height of 2 meters above the ground with a speed of 15m/s.
a. where is the book after 2 seconds?
b. what is the maximum height above the ground that the book reaches?
A person pulls a 5.0 kg sled by a rope across a floor. The coefficient of kinetic friction between the floor and the sled is 0.15. What is the magnitude of the normal force
An airplane with a speed of 89.1 m/s is climbing upward at an angle of 31.5 ° with respect to the horizontal. Relative to the ground, determine the angle of the velocity vector of the package just before impact
a person slides from rest down a smooth hemispherical hill. At what angle does this person leave the surface
How strong is the electric field between the plates of a 0.70 microF air-gap capacitor if they are 3.0mm apart and each has a charge of 77 microcoloumbs
A fish appears to be 2.00 m below the surface of a pond when viewed almost directly above by a fisherman. What is the actual depth of the fish
A Carnot engine uses a steam boiler at 100°C as the high-temperature reservoir. Determine the useful power output of the heat engine
a 753 kg elevator starts from rest. it moves upward for 3.04 seconds with a constant acceleration until it reaches its cruising speed of 2.07 m/s
A proton travels with the speed of 8.34×105 m/s at an angle of 32.3° with the direction of a magnetic field. The field exerts a force of 3.00×10-17 N on the proton. What is the strength of the field.
Calculate the de Broglie wavelength for an alpha particle (He-e nucleus) with energy E = 4.2 GeV (which is emitted in the radioactive decay of U-238)
In a downtown office building you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width of each section of the door if a force of 64 N applied to the outer edgE
To save on heating cost, the owner of a greenhouse keeps 660kg of water around in barrels. find the minimum ampere rating of an electric heating system
A coil with length of 11 cm and a cross-section of 2.3 cm is connected in series with a 8.0k? resistor. A 42.0 V battery is applied across the two devices, What is the energy density inside the coil
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