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Looking directly downward from the boat, you observe a shark which appears to be 5.2 m below the water’s surface. Determine the shark’s real depth?
A spherical mirror is silvered on both the sides, therefore it’s concave on one side and convex on the other. If an object is 56 cm from one side, a real image forms 35 cm from that side. Det
A gymnast is performing a floor routine. In a tumbling run she spins via the air, raising her angular velocity from 3.00 to 4.15 rev/s while rotating through one-half of the revolution. Determine ho
The laser beam hits the mirror 1.56 m above the ground. Behind the laser is a wall, 2.90 m from the aperture where the laser light emerges. Determine at what height does the reflected beam hit the w
White light hits a diffraction grating (890 lines/mm) at normal incidence. Determine the highest-order visible maximum which is formed?
Illustrate algebraically which this point is on unit circle. Assume P is terminal point determined by t. Determine exact values of sin(t), cos(t) and tan(t).
An object of 4.8 kg and another object of 13.0 kg, both resting on a frictionless table, are joined by a mass-less compressed spring. The spring is released and the objects fly off in opposite direc
A brick of 0.5 kg is dropped from a height of 9.0 m. It strikes the ground and comes to rest. (i) Determine the magnitude of the impulse applied by the ground on the brick?
(ii) When the baseball is in contact with the bat for 1.4 ms, determine the magnitude of the average force applied by the bat on the ball?
To evaluate the height above ground, balloonists simultaneously estimate angle of depression to 2 consecutive mileposts on road on same side of balloon. Angles of depression are found to be 14°
An 88 kg running back moving at the 6.0 m/s forms a perfectly inelastic collision with a 115 kg linebacker who is primarily at rest. Determine the speed of the players just after their collision
The mass of bullet is around12.4 g, the mass of block is 11.1 kg, the bullet's impact speed is 880 m/s, and the coefficient of kinetic friction among the block and the table is 0.220. (Suppose that
The average atmospheric pressure P in pounds per square inch is P = 14.7e?-0.21x, where x is altitude in miles above sea level. Determine average atmospheric pressure for the altitude of 8.1 miles.
A GaAs crystal is on the coordinate system such that an arsenic atom sits at the position 0,0,0 and a gallium atom sits at (a/4),(a/4),(a/4).
Explain what does three resistors joined in series mean. Write down the relationship between the voltages across and the currents flowing via each one of them?
A rock of 5.39 kg whose density is 5060 kg/m3 is hanged by a string such that half of the rock's volume is beneath water. Determine the tension in the string?
Find in which administration follow variables will be higher ; investment spending, consumer spending, government saving and private saving and net exports. Describe the answers.
A 7.2 cm × 7.2 cm × 7.2 cm wood block having a density of 660.55 kg/m3 floats in water. Determine the distance from the top of the block to the water when the water is fresh?
An ice cube of 97.4 g at -13°C is positioned in an aluminum cup whose initial temperature is 80°C. The system comes to an equilibrium temperature of 22°C. Determine the mass of the cup?
What mass of ammonia is in the container if a 250.0 mL sample of ammonia, NH3(g), exerts a pressure of 833 torr at 42.4 degree C.
An aluminum pan of 684.02 g is eliminated from the stove and plunged into a sink filled with 11.72 L of water at 20°C. The water temperature quickly increases to 26°C. Determine the initial
185.9 J of heat energy are transferred to 17.23 g of mercury. Determine by how much does the temperature rise?Determine how much heat is required to increase the temperature of 17.23 g of water by the
Determine the absolute pressure of the air in your car's tires, in psi, if your pressure gauge points out they are inflated to 36.38 psi? Suppose that you are at sea level.
A straight rod comprises of a 1.48 cm long piece of aluminum joined to a 3.05 cm long piece of steel. Determine by how much will the length of the rod modify if its temperature is raised from 16°
Use laws of logarithms to rewrite expression below in the form with no logarithm of the product quotent or power. Determine solution of expential equation correct to 4 decimal places.