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An object floats in the water with 60% of its volume submerged. What is its approximate density?
A) 400kg/m^3
B) 600kg/m^3
C)1000kg/m^3
D)1400Kg/m^3
A 130-g baseball, moving along the x-axis with speed 29.0 m/s strikes a fence at a 45 degree angle and rebounds along the y-axis with unchanged speed. Give x and y components of its change in momentum.
An outfielder throws a 0.150-kg baseball at a speed of 22.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion
A 20 kg loudspeaker is suspended 2.0m below the ceiling by two cables that are 30 degrees from vertical. what is the tension in the cables
An automobile weighing 1.80×104 N is moving with an initial speed of 64.0 km/hr along a flat highway. What is the time required to stop the automobile in the previous problem
the drawing shows an electron entering the lower left side of a parallel plate capacitor and exiting at the upper right
question when water freezes it expands about 8.73. what would be the pressure increase inside your automobile engine
a horizontal circular platform rotates counterclockwise about its axis at the rate of 0.805 rad/s. You, with a mass of 67.3 kg, Calculate the total angular momentum of the system
A silicon sample is doped with phosphorus at 1.23 parts per million. Phosphorus acts as an electron donor, Calculate the number of free electrons per unit volume of the doped silicon.
A projectile is fired at time t = 0.0 s, from point 0 at edge of a cliff, with initial velocity components of vix=30m/s and viy = 100m/s. The projectile rises, and then falls into the sea at point P. The time of flight of the projectile is 20s.
A red light flashes at position xR=4.00 m and time tR=1.00x10-9 s and a blue light flashes at xB=5.00 m and tB=8.50x10-9 s. Find the location of the two flashes in frame S'
Radio waves are diffracted by large objects such as buildings, whereas light is not noticeably diffracted by large objects such as buildings. Why is this?
A planet of mass 7.00 1025 kg is in a circular orbit of radius 6.00 1011 m around a star. What is the change in kinetic energy of the planet
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