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A ball swings in a vertical circle at the end of a rope 1.30 m long. When the ball is 37.3 ° past the lowest point on its way up, its total acceleration is (âˆ'22.5 i + 20.2 j ) m/s2. For that instant, do the following.
(a) Sketch a vector diagram showing the components of its acceleration.
(b) Determine the magnitude of its radial acceleration.
(c) Determine the speed of the ball.
(d) Determine the velocity of the ball - Give the magnitude and direction.
Consider the mass spectrometer shown schematically in the figure below. The electric field between the plates of the velocity selector is 5900 V/m, Calculate the radius r of the path for a singly charged ion
A window of a car is found to be covered with 0.6cm of ice. If the area of the window is 1 m2, and the ice is at -12 degrees Celsius, what is the minimum heat required to melt all the ice
A 0.96-m-long metal rod has a radius of 2.1 cm and a resistance of 6.3 · 10 ? 5 ?. What is the resistivity of the metal
Three resistors are connected in parallel to a 12.0 V battery. Two of the resistance values are 58\Omega and 42\Omega. what is the value of the third resistor
They are 15.0 m above a fire-fighters safety net. When landing jumper stretches the net 1.0 m before coming to rest. A. what was the average acceleration experienced by the jumper when slowed to rest by the net? B. Is this acceleration positive or ne..
a man is standing near a gate and a flag pole. The gate is 15 ft from the pole. If the pole is h=35 ft tall, how far is the man from the gate
Atomic nuclei have a typical density of about 10^(17) kg/m^3. The density of liquid mercury is roughly 10^(4) kg/m^3. Approximately what fraction of the volume of liquid mercury is empty space between mercury nuclei?
A 2200 kg sport utility vehicle travelling at 86 km/h can be stopped in 0.15 s if it hits a concrete wall. Presume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of car both before and after the crash, and..
A 2-slit experiment is performed with light of wavelength 589nm. Fringes are measured on a screen 1.50m away from the slits, What is the separation between the slit
A solenoid 110 cm long and 2.40 cm in diameter carries a current of 16 A. Find the length of wire forming the solenoid
After sliding across the horizontal surface, the block of mass M collides elastically with a vertical rod of length R and mass MR that is pivoted at the upper end. What is the maximum displacement angle
A duck has a mass of 2.1 kg. As the duck paddles, a force of 0.09 N acts on it in a direction due east, Find the magnitude and direction (relative to due east) of the displacement that the duck undergoes in 2.6 s while the forces are acting
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