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You are kicking a ball in the air that is sitting on the ground. You are told the initial velocity and the distance to a wall of a known height. To find out if the ball goes over the wall, you need to
A) determine if the ball is going up or down when it reaches the walls position
B) determine how fast the ball is going when it reaches the walls position
C) determine the height of the ball when it reaches the walls position
D) make sure the ball is at EXACTLY the height of the wall when it reaches the walls position
E) both a and b
A rock of mass 47 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 252 N. Determine the magnitude of the acceleration of the rock
What is the rate of change entropy of the first reservoir.
Two objects of masses m1=0.56 kg and m2=0.88 kg are placed on a horizontal frictionless surface and a compressed spring of spring constant k=280 N/m is placed between them. find the final velocity of each object
What is the frequency of light that has the wavelength in water of 788 nm if the refractive index for this light is 1.33.
A uniform rod of mass M and length L is sitting on a frictionless table. Describe the subsequent motion of the rod
A cylinder rolls without slipping down an incline that makes a 57° angle with the horizontal. What is the acceleration of the cylinder
A 50 kg pole vaulter running at 10 m/s vaults over the bar. if the vaulter's horizontal component of velocity over the bar is 1 m/s and air resistance is disregarded, how high was the jump.
A puddle holds 150 grams of water. If .50 grams of water evaporates from the surface, what is the approx temperature altering of the remaining water.
How much energy is delivered to the battery. What is the velocity v of the smaller fish before lunch.
Consider a straight wire with a radius A, carrying a current I, Use Ampere's law to calculate the magnetic field around the wire as a function of r, the distance from the center
After going through a bad break-up with your significant other you end up drinking half a case of beer. The next day you decide the cloud of despair must be fought with exercise. How much longer will it take you to burn off the calories of the bee..
A spherical blackbody radiator has a temperature of 159°C. Its radius is 0.253 m. what is the net rate of energy radiated from the sphere?
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