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A modern-day zeppelin holds 9,030 m3 of helium. Compute its maximum payload at sea level. (Assume the helium and air to be at 0°C and 1 atm. The answer I get is 9391.2 kg but seems to be wrong answer and I have run out of ideas.
A bat strikes a 182g ball with a force of 109-N at an angle of 57° above the horizontal. What is the ball's vertical acceleration (positive for upward, negative for downward).
The four particles form a square of edge length a = 4.90 cm and have charges q1 = 6.40 nC, q2 = -6.17 nC, q3 = 8.41 nC, and q4 = -8.40 nC. What is the magnitude of the net electric field produced by the particles at the square's center?
markings to indicate length are placed on a steel tape in a room that is at a temperature of 22degc. measurements are
When resting, a person has a metabolic rate of about 5.84 x 105 joules per hour. The person is submerged neck-deep into a tub containing 3.61 x 103 kg of water at 28.8 °C. If the heat from the person goes only into the water, find the water temper..
To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest. find the average induced emf in the coil during this time interval
If 650-nm light falls on a slit 0.0525mm wide, What is the angular width of the central diffraction peak
if the initial velocity of a cannonball is 40ms and the cannonball is launched at 72o above the horizontal how much
A ball thrown straight up at ground level passes a height of 174.2 m in 5.7 s. The acceleration of gravity is 9.8 m/s2. What is the position of the ball after 3.18 s
You are flying to Chicago for a weekend away from the books. In your last physics class, you learned that the airflow over the wings of the plane creates a lift force, estimate the banking angle of the plane relative to the horizontal
A 50 kg person stands at the edge of a 7.4 m diameter circular platform, which is mounted horizontally on frictionless bearings and has a total mass of 300 kg. What is the magnitude of the speed of the person (in m/s) with respect to the ground
A 1660-kg car travels 2.6 km up an incline at constant velocity. What is the net work done on the car
two 491 g blocks of wood are 1.63 m apart on a frictionless table. a 10.67 g bullet is fired at 415 ms toward the
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