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A book sits on a table. Earth pulls the book downward with a force of strength 4 N. The table pushes the book upward with a force of strength 4 N. Discover the overall force acting on the book.
1. A football player spikes a football after scoring a touchdown. Earth exerts a downward force of strength 2 N on the ball, while the player exerts a downward force of strength 28 N on the ball. Discover the size and direction of the overall force acting on the ball at this instant.
2. While an air-hockey puck glides across the table, Earth exerts a downward force of strength 1 N on the puck, while air rushing out of holes in the table exerts an upward force of strength 1 N on the puck. Discover the size of the overall force acting on the puck.
What is the magnitude of the torque exerted by the entire flagpole at the point of contact with the building.
A lossless transmission line is connected to a load of ZL=30 ohms at one end and a sinusoidal voltage generator at the other end, with Vg = 1? 0o (V) at the other end. The characteristic impedance and the length of the transmission line are Zo = 5..
block 1 has mass m1 = 470 g, block 2 has mass m2 = 510 g, and the pulley is on a frictionless horizontal axle and has radius R = 5.2 cm. What is the pulley's rotational inertia
A 3.1kg block of wood sits on a table. A 3.0g bullet, fired horizontally at a speed of 370m/s, What is the speed of the block immediately after the bullet exits
A carefully designed experiment can measure the gravitational force between masses of 3 kg. Given that the density of iron is 7860 kg/m3, what is the gravitational force between two 3.00-kg iron spheres that are touching?
a segment of wire supplying current to a motor of a submerged submarine carries 800A and feels a 3.6N repulsive force from a parallel wire 5cm away
An object is moving in simple harmonic motion with an amplitude of 16 cm and a frequency of 2.0 Hz. Calculate the maximum magnitude of the velocity
A hollow sphere of radius 0.200 meter, with rotational inertia I = 0.0840 kg•m2 about a line through its center of mass, rolls without slipping up a surface inclined at 43.7 degree to the horizontal. Obtain the speed of the center of mass of the sphe..
A car with good tires on a dry road can decelerate at about 5.0 m/s2 when braking. Assume the car is initially traveling at 55 mi/h. Determine what is the stopping distance
An air-hockey puck of mass m floats across the table essentially frictionless on a cushion of air. What is the final velocity of the heavier puck
An object initially at rest explodes in two fragments of masses 2.6 kg and 3.3 kg that move in diametrically opposite directions. find the internal energy of the explosion
You reach out the second story window, which is 5 meter above the sidewalk, and throw a 0.3 kilogram ball straight upward with 6 Joule of kinetic energy. Find the ball gravitational potential energy when it is released
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