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A projectile is shot from the ground at an angle of 55o with respect to the horizontal, and it lands on the ground 5 seconds later.
(a) Obtain the horizontal component and the vertical component of initial velocity?
(b) Obtain the magnitude and direction of velocity when the projectile hits the ground.
A Doppler ultrasound machine uses a probe emitting ultrasound waves at 5MHz to probe the speed of blood cells moving in an artery, What is the wavelength through the soft tissue of ultrasound produced by this machine
A tennis ball of mass = 0.068kg and speed = 21m/s strikes a wall at a 45 degree angle and rebounds with the same speed at 45 degrees. What is the magnitude of the impulse given to the ball
question two equal point charges of magnitude 4.0 microc are situated along the x-axis at x1 -2.0 m and x2 -2.0 m.
A crying baby emits sound with an intensity of 8 × 10-8 W/m2. What is the intensity level for a set of twins? The lowest detectable intensity is 10-12 W/m2
A child goes down a playground slide with an acceleration of 1.20 m/s2. Compute the coefficient of kinetic friction between child and slide if the slide is inclined at an angle of 32.2° below the horizontal.
An electron of mass 9.11E-31 kg has an initial speed of 3E5 m/sec. It travels in a straight line and its speed increases to 7E5 m/sec in a distance of 5.0 cm. What is the force on the electron
A parallel plate capacitor with circular plates of radius 40mm is being discharged with current of 6.0 A. At what radius (a) inside and (b) outside the capacitor gap is the magnitude of the induced magnetic field equal to 75% of its maximum value? (..
suppose you wanted to push this crate up the ramp. the crates weight is 100 n and the maximum frictional force the ramp
q1. a motorcycle has a constant speed of 29.0 ms as it passes over the top of a hill whose radius of curvature is 117
A circular disk of radius 2.0 m rotates, starting from rest, with a constant angular acceleration of 20.0 rad/s2. What is the tangential acceleration of a point on the edge
what is the minimum acceleration necessary for the plane to take flight.
A water tank filled (with water) to the brim has a hole in itsside 30 meters down from the top. The area of the hole is0.08 m^2. Calculate the velocity of the water as it exits the hole
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