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Imagine that a stove burner provides thermal energy at a rate of 4800 J/s. What is the minimum time that it would take to melt 1 qt (about 1300 g) of ice in a pan placed on that burner?
q1. a 0.27 kg rock is thrown perpendicularly upward from the top of the cliff that is 32 m high. when it hits the
A 2 kg box is raised from rest a distance of 3 m by a vertical force of 110 N. Find the final kinetic energy of the box
A cart of mass M1 = 3 kg is attached to a block of mass M2 = 5 kg by a string that passes over a frictionless pulley. What is the work Wg done by gravity on the system
An infinite conducting sheet lies in the xy plane. It has a width of 4.5 cm and a current density of 5200 A/m^2 in the negative direction. what is the direction of the force on the electron
q1. megans mass is 30 kg. she climbs the 4.8 m ladder of a slide and reaches a velocity of 2.8 ms at the bottom of the
A 1300- {rm N} crate slides 15- {rm m} down a ramp that makes an angle of 35^circ with the horizontal. If the crate slides at the constant speed, how much thermal energy is created.
A transverse wave on a string has an amplitude of 0.223 m and a frequency of 194 Hz. How much time passes between the first two instants when this particle has a displacement of y = 0.114 m
q1. in a car lift the output plunger has a radius of 9cm. the weight of the plunger and the car is 21600n. what is the
A 1.00-kg block of ice is placed against a horizontal spring that has force constant k = 175 N/m and is compressed 0.021 m. What is the speed of the block after it leaves the spring
The syringe must be heated to high temperatures to sterilize it. When the syringe is at its maximum temperature, what is the rms speed of the oxygen molecules
A soccer player kicks the ball toward a goal that is 21.0 m in front of him. Find the speed of the ball when the goalie catches it in front of the net
An 18.8 cm screwdriver is used to pry open a can of paint. If the axis of rotation is 2.78 cm from the end of the screwdriver blade, what force is applied to the lid
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