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A block of mass m = 2.50 kg is pushed d = 2.80 m along a frictionless horizontal table by a constant applied force of magnitude F = 15.0 N directed at an angle θ = 25.0° below the horizontal as shown in the figure below.A block labeled m is on a horizontal surface. An arrow labeled vector F points downward and to the right at an angle θ above the horizontal, and acts upon the upper left corner of the block. A faded image of the block is a distance d to the right of the block.
(a) Determine the work done by the applied force.
(b) Determine the work done by the normal force exerted by the table.
(c) Determine the work done by the force of gravity.
(d) Determine the work done by the net force on the block.
In the future, an astronaut weighing 882 Newtons on earth may stand on a new moon and weigh themselves to find they now weigh 441 Newtons. what is the mass of this new moon
A lead bullet is fired at a wooden plank. At what speed must it travel to melt on impact, if its initial temperature is 25°C and the heating of the plank is neglected? Look up the properties of lead needed.
In the circuit shown below ε = 58.0 V, R5 = 4.00 Ω, R3 = 2.00 Ω, R2 = 2.20 Ω, I5 = 8.40 A, I4 = 5.80 A, and I1 = 11.5 A. Find the current through R2 and R3, and the values of the resistors R1 and R4.
A Helium balloon is anchored by a mass less string to the floor of a railroad car that is accelerating forward with acceleration A. Explain clearly why the balloon tends to tilt forward and calculate its angle of tilt in equilibrium
Draw a free body diagram of the ball tied underwater. What is the string tension T in terms of V,m,p, and any constants?
An ideal gas at 17.8 °C and a pressure of 1.66 x 105 Pa occupies a volume of 3.22 m3. calculate How many moles of gas are present
four point charges q are fixed to the four corners of a square that is 14.1 cm on a side. an electron is suspended
On the way from a planet to a moon, astronauts reach a point where that moon's gravitational pull transitions from being weaker than that of the planet to being stronger than that of the planet. Determine the distance of this point from the center ..
A proton is given kinetic energy of 0.200 keV. (i). What potential difference was required to accelerate the proton from rest to 0.200 keV?
Create horizontal component of the pendulum
When we finish we have the same amount of water at 120 degree C, at standard pressure. What is the volume of Steam produced
A runner rounds a circular curve of radius 24.0 m at a constant speed of 5.25 m/s. What is the magnitude of the runner's centripetal acceleration
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