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two children are playing a game in which they try to hit a small box on the floor with a marble fired from a spring-loaded gun that is mounted on a table. The target box is horizontal distance D = 2.17 m from the edge of the table. Bobby compresses the spring 1.13 cm, but the center of the marble falls 28.9 cm short of the center of the box. How far should Rhoda compress the spring to score a direct hit? Assume that neither the spring nor the ball encounters friction in the gun.
What is mechanical energy
A probe is traveling in deep space at a speed of 4000 m/s. It has a total mass of 5000 kg. It fires its rocket motor to brake to 3000 m/s, what is the probe's final velocity
assume the mass of cart 1 is m1 = 234 g and the mass of cart 2 is 181 g. Calculate the energy lost in the collision
You decide to travel by car for your holiday visits this year. You leave early in the morning to avoid congestion on the roads. How far did you travel on this trip
A 70 pF capacitor and a 280 pF capacitor are both charged to 3.6 kV. They are then disconnected from the voltage source and are connected together, Find the energy lost when the connections are made
You have been given 4.4584807 g of copper from which you are to fashion a wire whose resistance is 1.2941073 ohms. What will the diameter of the wire be that you fashion
A person desires to reach a point that is 3.40 km from her present location and in a direction that is 350 north of east. However, she must travel along streets that are oriented either north-south or east-west. What is the minimum distance she mi..
An x-ray photon of 0.13 nm strikes a metal and undergoes Compton scattering of the electrons in the metal. find the wavelength of the scattered photon
The motion detector used in a physics lab sends and receives 49.55 kHz ultrasonic pulses. find the wavelength of the waves emitted by the motion detector
A small solid ball of mass M and radius R rolls without slipping on the track whose height y as a function of horizontal position x is given by y=ax^2, Find an expression for the period of the resulting motion
0.97 L of 16C water is placed in a refrigerator. What is the refrigerator's coefficient of performance
What is the speed of the arrow as it leaves the bow?
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