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You are playing catch with a friend in a moving train. When you toss the ball in the direction the train is moving, how does the speed of the ball appear to an observer standing at rest outside the train? Be sure to use at least 3 complete content related sentences to explain.
A ball is thrown from the ground with a speed of 30m/s at an angle of 55 degree above the horizontal. If we neglect air resistance, How far from where it is thrown will the ball land
compute the electric flux through a rectangular plane.
An air-track glider(m = 0.4 kg) is pushed against a Hooke^'s-Law spring (k = 150 N/m), compressing the spring by 10 cm. The glider is then released and the glider coasts upward along the slanted track. How far along the track does the glider trave..
a body of mass of 150gk dropped by a parachute with negligible initial velocity. while the parachute is opening the
A sinusoidal voltage Δv = (100 V) sin (160t) is applied to a series RLC circuit with L =50 mH, C = 100 μF, and R = 38 Ω. What is the impedance of the circuit? What is the maximum current in the circuit?
A thin film of polystyrene is used as an antireflective coating for fabulite, What is the minimum thickness of film required, Assume that the wavelength of the light in air is 510 nanometers
At the Earth's surface, a projectile is launched straight up at a speed of10.5km/s. To what height will it rise
The drawing shows a wire composed of three segments, AB, BC, andCD. There is a current of I = 2.9A in the wire. There is also a magneticfield B (magnitude= 0.24 T) that is the same everywhere and pointsin the direction of +z axis.
Two tiny conducting spheres are identical and carry charges of -18.8C and +68.2C. They are separated by a distance of 3.32 cm. What is the magnitude of the force that each sphere experiences
A 4.68 kg sphere makes a perfectly inelastic collision with a second sphere that is initially at rest. What is the mass of the second sphere
In gaseous sodium chloride, chloride ions have one more electron than they have protons, and sodium ions have one more proton than they have electrons. These ions are separated by 0.240 nm.
water flows through a horizontal tube of diameter 3.0cm that is joined to a second horizontal tube of diameter 1.9cm.
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