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A projectile is launched vertically with an initial speed of 3 kilometer per second from the surface of a planet (radius = 1.5 x 106 meter). The projectile rises to a maximum height of 3.0 x 106 meter above the surface of the planet. Evaluate what is the mass of the planet?
A man pushes a lawn mower on a level lawn with a force of 200N. If 40% of this force is directed downward, then how much work is done by the man
A square loop is rotating around it's vertical axis in a magnetic field of strength B = 0.06 T as shown in View , calculate the current flowing in the loop
A variant of the ballistic pendulum consists of a 5.00kg block attached to a string and lying on a frictionless table. What is the angular momentum of the block/bullet after the collision
A vertical spring (ignore its mass), whose spring constant is 895 N/m, is attached to a table and is compressed down by 0.150 meter. Determine how high above its original position (spring compressed) will the ball fly
A radar has a resolving power of 30 m at a range of 1.0km. What is the minimum width of its antenna if its operating frequencyis 9500 MHz
A 6.3 ?C point charge and a ?1.7 ?C point charge are separated by a distance of 0.00034 m. What is the electric potential energy of this system
A spring with constant k=30N/m is used to shoot a block (mass 1kg) across a frictional horizontal surface. what is the force of friction acting on the block
A 0.5 kilogram rubber ball is dropped from a height of 3.0 meter above a hard concrete ground. Find the magnitude of the average force of the ground on the ball during the interaction
find the velocity and position of the particle asthe moment it reaches it's maximum x coordinate.
The average density of the planet Venus is 5219 kg/m3. The acceleration of gravity on its surface is 8.84 m/s2. Calculate the average radius of Venus
Two equal charges Q are positioned at points (x=l, y=0) and (x=-1, y=0).Find where the field is a maximum. define your answer in terms of the variables , , and appropriate constants. If there is more than one answer, separate them by a comma.
Iodine-131 has a half-life of 8 days while iodine-125 has a half life of 60 days and are both used therapeutically for different purposes. what percentage of the iodine-125 has decayed
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