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A diver of mass 60kg, on entering the water with an initial velocity of 14.87ms-1, experienced a force of resistance due to the opposing motion of magnitude of 180v Newtons, where v is the velocity of the diver in ms-1 . In addition to the force of gravity, the diver also experiences a constant upward buoyancy force of 720N. Take the origin of motion to be the surface of the water. The magnitude g of the acceleration due to gravity can be taken as 10ms-1 . Calculate the maximum depth, in metres the diver will submerge. Give answer to 3 decimal places.
A 10,000 kg railroad car is rolling at 2 m/s when a 400 kg load of gravel is suddenly dumped in. What is the railroad cars speed just after the gravel is dumped in.
What are the velocities of the two people after the snowball is exchanged. What is the greatest kinetic energy of the electrons removed from the cathode by this light.
100.0 W tungsten filament bulb generates 95.0 W of heat, which dissipated through glass bulb which has radius of 3.00 cm and 0.500 mm thick. If thermal conductivity of glass is 0.836 W/m°C, determine difference in temp. between inner and outer sur..
Light from a star has an intensity of about 75.5×10-8W/m2. how far away is it from Earth
A 0.88 kg projectile is fired into the air from the top of a 7.07 m cliff above a valley, How far from the bottom of the cliff does the projectile land and Find the time of flight
q1.an automobile driver puts on brakes and decelerates from 68 mph to zero in 16 s. what distance does the car travel?a
A planet has two small satellites in circular orbits around the planet. the first satellite has a period 18.0 hours, what is the period of the second satellite
A projectile is fired at an angle of 45° with initial kinetic energy E0. At the top of its trajectory, What is the speed of the first fragment
A copper block is removed from a 300^0 C oven and dropped into 1 L of water at 20.0^0 C. The water quickly reaches 25.5^0 C and after that remains at that temperature. What is the mass of copper block.
What is the percentage difference between the speeds of red light and violet light in diamond, What is this percentage difference in flint glass
A circular coil of wire with 10 turns and a 4.0 cm radius is located between the poles of a large electromagnet that produces a uniform magnetic field of 0.5T. Calculate the average induced emg across the ends of the loop
A car starts from rest and accletation uniformly for 10s to a velocity of 8m/s. Find the value of accleration, retardation and total time taken
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