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A diver stands on a diving board as shown in attached diagram. The centre of gravity of the diving board is marked CG. If the force of gravity on the diver is 528N and the force of gravity on the board is 372N, how much force does support X exert on the board?
A. 900 NB. 1700 NC. 1900 ND. 2600 N
2. What is the final speed of electrons which are accelerated from rest through a potential difference of 9.1 x 10^2 V in the gun of a cathode ray tube?
A. 3.0 x 10^6 m/sB. 1.3 x 10^7 m/sC. 1.8 x 10^7 m/sD. 3.2 x 10^14 m/s
A little cat, Bella, walks in a straight line, which we shall call the x axis, with the positive direction to the right. What is the x component of her acceleration at t = 6.00 s
A log of mass 40 kg is dropped into river at 0°C. If the relative density of the log is 0.8, what will be the volume of the log above the surface
A car traveling on a flat (unbanked) circular track accelerates uniformly from rest with a tangential acceleration of at. Determine the coefficient of static friction between the car and track from these data
A car speeds up as it turns from travelling due south to dueeast. When exactly halfway around the curve, the car's accelerationis 3.50 m/s 2, What is the radial component of the acceleration at that point
A snow skier is racing down a 50-degree slope. If there is no friction between the skis and the snow, What is the component of the acceleration of gravity that causes the skier to move down the slope
A thin film of MgF2 (n=1.38) coats a piece of glass. Contructive interference is observed for the reflection of light with wavelengths of 500 nm and 625 nm.
The Mars rover was deployed on the surface of Mars in July 1997. At one point during its subsequent mission, radio signals took about 9 min to travel from Earth to the rover. How far was Mars from the from Earth at that time? ___________m
Two equally charged particles, held 4.7 × 10-3 m apart, are released from rest. The initial acceleration of the first particle is observed to be 7.2 m/s2, find the mass of the second particle
A 2.1-m nylon fishing line used to hold up a 6.0-kg fish has a diameter of 1.8mm, How much is the line elongated
A person pulls a toboggan for a distance of 27.5 m along the snow with a rope directed 26.2 ° above the snow. The tension in the rope is 92.3 N. How much work is done on the toboggan by the tension force
a total of 39 bright and 39 dark newtons rings not counting the dark spot at the center are observed when 570 nm light
the electric field just above the surface of the charged drum of a photocopying machine has a magnitude e of 3.1 x 105
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