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Question1
A house painter stands 3.0 m above the ground on a 5.0-m-long ladder that leans against a wall at a point4.7 m above the ground. The painter weighs 680 N and ladder weighs 120 N. assuming no friction between house and upper end of the ladder, find out the force of friction that the driveway exerts on the bottom of the ladder.
Question2
The sensor in the torso of a crash - test dummy records the magnitude of the net exterior force acting on it. If the dummy is thrown forward with a force of 130.0 N as simultaneously being hit from the side with a force of 4500.0 N, what force with sensor report?
A rectangular loop of wire carrying a 4.0-A current is placed in a magnetic field of 0.60 T. What is the area of this loop
A 27.0 g copper ring at 0°C has an inner diameter of D = 3.04591 cm. A hollow aluminum sphere at 87.0°C has a diameter of d = 3.05180 cm. What is the mass of the sphere
Calculate the Work required (in eV) to move a stationary electron from the location r3 to r5 in a hydrogen atom
A round loop of diameter 12 cm, carrying a current of 0.40 A, is placed inside a magnetic field B = 0.20 i T + 0.40 j T. What is the potential energy of the loop
illustrate the industry that is Swisher? The specifics of this question comprise - a) sales growth, b) number of domestic competitors, number of private labels and its market share, c) distribution network that dominates d) the buying behaviour of..
What is the speed of the electron when it strikes the target? How far does it fall under the influence of gravity during its flight?
what is the ratio of the amplitude of the damped oscillations. You shoot a 58-g pebble straight up with a catapult whose spring constant is 310 N/m. The catapult is initially stretched by 0.20 m. How high above the starting point does the pebble f..
A heat engine using a diatomic ideal gas goes through the following closed cycle, What is the thermal efficiency of this heat engine
A closely wound rectangular coil of 100 turns has dimensions of 20.0{\rm cm} by 50.0{\rm cm}. What is the average emf induced in the coil
The force of gravity acting on the arm acts through point A. Identify the magnitudes of the tension force t in the deltoid muscle and the force s of the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown.
Light of wavelength 380 nm is required to cause electrons to be ejected from the surface of a metal. What is the kinetic energy of the ejected electrons
A football is thrown with an initial upward velocity component of 15.0 and a horizontal velocity component of 17.5. How far has the football traveled horizontally from its original position
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