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1.If you lift a physics book that weighs 1ON vertically, make a 1.0m distance up. What will be the work done by the weight of the book?
2. A block slides a certain distance down a sloping ramp. If the body travels the same distance uphill (returns to the starting point) the work done by the force of gravity will be:
3. A 5kg block slides on a frictionless surface inclined 30 degrees. The distance is 10m. The work done by normal force is:
4. A spring with a force constant of K = 300N / m is compressed 9cm. The potential energy in the spring will be:
5. A 1500kg car travels with a constant speed of 22m / s on a flat circular track of 80m radius. The kinetic energy of the car is:
If the accelerating plates are 1.05 cm apart, and have a potential difference of 2.65×104 V, Find the change in electric potential energy for an electron
The water sprinkler, positioned at the base of a hill, releases a stream of water with a velocity ofv = 33 ft/s as shown in (Figure 1). Assume that the hill is defined by the equation y=(0.05x2)ft and neglect the size of the sprinkler. Determine the ..
Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.3 mm. What is the resistance ratio RA/RB , measured between their ends
A platinum resistance thermometer has resistances of 190.0 when placed in a 0°C ice bath and 234.8 when immersed in a crucible containing a melting substance. What is the melting point of this substance?
The moon barely covers the sun at a solar eclipse. Given that the moon is 4 X 105 kilometer from Earth and that the Sun is 1.5 X 108 kilometer from Earth, determine how big is the Sun
You have a 12 oz cup of coffee at 180 degrees F. you add 2 ounces of cold water at 40 degrees F. What is the tempertaure of the coffee?
Is the potential in the cavity of a charged conductor zero
What is the average force exerted on the ball. How fast (in ) must a centrifuge rotate if a particle 6.50 from the axis of rotation is to experience an acceleration of 125,000 's.
To focus a camera on objects at dissimilar distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f=200.00mm) is to be focused on an object located fi..
A car tire is pressurized in the morning at a temperature of 200C to 2atm. By afternoon at a temperature of 350C the tire pressure has changed to 2.1atm but the volume has decreased by 2%.
Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. how far does the tongue reach
A 200-turn rectangular coil having dimensions of 3.0 cm by 5.0 cm placed in a uniform magnetic field of magnitude 0.90T. Find the current in the coil if the maximum torque exerted on it by the magnetic field is 0.15 N.m
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