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An angry person is throwing rocks onto a shed with a flat, horizontal roof as shown. If the angry person throws an identical rock with the same initial speed and a slightly larger angle from the horizontal, how will this affect the magnitudes of the horizontal and vertical components of the velocity of the rock as it hits the roof of the shed?
A uniform 1.6-kg rod that is 0.91 m long is suspended at rest from the ceiling by two springs, one at each end. Find the angle that the rod makes with the horizontal
A spacecraft moving away from Earth emits a 4480 Hz signal. A scientist on Earth measures the signal to be 4476 Hz. What is the speed of the spacecraft relative to Earth?
A convex mirror has a focal length of -30.0 cm. A 15.0-cm-tall object is located 30.0 cm in front of this mirror. determine the location and size of the image
a stel cable is used to keep a 2 m long 10 kg bar horizontal. one end of the bar is mounted to a wall. what tensional force now acts on the bar through the cable
Starting from rest a 12 Kg block slides down a frictionless curved slide (h = 8m, the vertical height) from A to B. Find the work done by friction in stopping the block
Verify that the parts of the y-decay selection rules relating L to the nuclear spins represent angular momentum conservation requirements. Use the fact that a γ ray from a transition of multipolarity L carries L units of angular momentum.
An observation satellite orbits the planet at a height of 1000 . What is the projectile's speed as it passes the satellite?
An RLC series circuit has a 202 ? resistor and a 25.0 mH inductor. At 8220 Hz, the phase angle is 45.0°. Find the minimum possible capacitance of the circuit
A new car is crash tested by running it into a heavy barrier at 41 km/h. find the average force exerted on the car by the barrier
The equation of a transverse wave traveling along a very long string is y = 7.0 sin (0.050 ?x + 8.0 ?t), Determine the maximum transverse speed of a particle inthe string
A 2.05 cm tall object is placed 30.0 cm to the left of aconverging lens with a focal length f1 =18.9 cm. A diverging lens, with afocal length f2 = -41.5 cm, How tall is the final image of the object
explain the working of beat frequency oscillator with suitable
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