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A particle is launched in a gravitational field (g) with an initial velocity of v nought at an angle of theta with respect to the horizontal.
A) Write down the equations for displacements along x- and along the y- axis as a function of time (t).
B) By combining these equations to eliminate time (t), show that the resulting equation of the form y= f(x) shows that the trajectory is parabolic.
Jack and Jill exercise in a 25.0-m-long swimming pool. Jack swims nine lengths of the pool in 159.5 seconds, while Jill, the faster swimmer, covers ten lengths in the same time interval. Find the average velocity and average speed of each swimmer.
A molecule of DNA (deoxyribonucleic acid) is 2.28 µm long, Determine the effective spring constant of the molecule
What is maximal speed v of the elevator
What is magnitude of the electric field
A block has an initial speed V(o) > 0 on a linear trajectory on the surface with friction coefficient u and air resistance (F = cv^2). Derive an equation that will represent the velocity (V) as a function of the position of the block (x). So V(x).
A 0.150 kg ball is going around in a vertical circle of radius R = 0.300 m at constant speed v. The ball is attached to a mass less ideal string which is attached to a fixed pivot point. If the tension F in the string is greater than 125 N, the st..
Because the mass would not make it around the loop if released from the height of the top of the loop (do you know why?) it should be released above the top of the loop-the-loop height.
You are to build a box whose height is 0.280 times its length. In order for the box to have a given volume while using a minimum amount of cardboard, what should be the ratio of the width of the box to its length.
The ball leaves the bat 2.0 ms later with a vertical velocity of magnitude 10 m/s. Illustrate what is the magnitude of the average force of the bat on the ball during the ball-bat contact?
A hawk is flying horizontally at 17.0m/s in a straight line, 160 m above the ground. A mouse it has been carrying struggles free from its grasp. The hawk continues on its path at the same speed for 2.00s before attempting to retrieve its prey.
A 60 (g} tennis ball with an initial speed of 32 {m/s} hits a wall and rebounds with the same speed. The figure shows the force of the wall on the ball throughout the collision.
An ion harvester is scouring deep space for isolated xenon (Xe+) ions. A xenon ion is singly ionized and has the charge of +e. If the field meter reads 0.000000202 N/C, how far away is it from the ion.
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