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A ball is fired with an initial speed of 40 m/s at an angle of 30 degree above the horizontal.
a) Determine what is the maximum height of the ball?
b) Determine how long does it take the ball to reach its maximum height?
A 170 km long high-voltage transmissionline 2.0 cm in diameter carries a steady current of 1040 A. If the conductor is copper with a free chargedensity of 8.0 multiplied by 1028electrons per cubic meter,
Illustrate what is the magnitude of the net torque on the wheel due to these three forces for an axis perpendicular to the wheel and passing through its center?
the total electric flux coming out of a cubical box that is 28.0 cm on a side is 128 gnm2c giga newtons times meters
A spaceship is moving away from Earth at a speed of 0.65c. A light source on the rear of the ship appears blue (? = 450 nm) to passengers on the ship. Which color (what wavelength) would that source appear to an observer on Earth monitoring the reced..
A heavy ball with a weight of 100N (m= 10.2 kg) is hung from the ceiling of a lecture hall on a 4.5-m-long rope. What is the tension in the rope at that point
A circular loop of radius 21 cm is located in the plane of the paper inside a homogeneous magnetic field of 0.7 T pointing into the paper, Calculate the current induced in the loop in A during that time
Two astronauts of equal mass 92 kg are holding on to opposite ends of a straight rope in space. The length of the rope between them is 18 meters. What is the new angular velocity of the two astronauts
A 10 cm long thin glass rod is uniformly charged to +50 nC. A small plastic bead, charged to - 4.8 nC, is 4.2 cm from the center of the rod. What is the magnitude of the force of the bead.
A golf ball of mass 0.045 kg is hit off the tee at a speed of 49 m/s. The golf club was in contact with the ball for 4.7 x 10-3 s. Find the magnitude of the impulse imparted to the golf ball
What do we call mineralsthat have the same combinations of elements, but a different arrangement of element?
A person lifts a 3.0 kg cement block a vertical distance of 1.24 m and then carries the block horizontally a distance of 11.90 m. How much work is done by the person in the process
q1.a grinding wheel initially at rest is rotated with constant angular acceleration of 3.73 rads2 for 9.03 s. the wheel
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