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Q1. On a frictionless horizontal surface. The spring is compressed 4.0 cm and released from rest.
(a) Determine the maximum speed of the object.1 m/s
(b) Determine the speed of the object when the spring is compressed 1.5 cm.2 m/s
(c) Determine the speed of the object as it passes the point 1.5 cm from the equilibrium position.3 m/s
(d) For what value of x does the speed equal one-half the maximum speed?
Q2. 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? Suppose no thermal energy transferred to the ground or the air. (Lv=540 calories/grams)
A fish is able to jump vertically out of the water with a speed of 4.76 m/s. What is the speed of the fish
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Two plane mirrors facing each other are 10 m apart. A woman stands 3 m from one of the mirrors and looks at the mirror and sees two distinct images. How far are these images from the woman.
A 1.5kg block intially at rest at the top of a 3m incline with a slope of 30degrees begins to slide down the incline. How fast is the block moving midway along the inlcine
Besides the gravitational force, a 3.25-kg object is subjected to one other constant force. The object starts from rest and in 1.20 s experiences a displacement of (4.10 - 3.30) m, where the direction of is the upward vertical direction. find out ..
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An air-filled parallel-plate capacitor has plates of area 2.10 cm2 separated by 0.50 mm. The capacitor is connected to a 3.0 V battery. What is the charge on the capacitor
A 0.96-m-long metal rod has a radius of 2.1 cm and a resistance of 6.3 · 10 ? 5 ?. What is the resistivity of the metal
A planet's moon travels in an approximately circular orbit of radius 6.6 x10^7 m with a time of 7 h 9 min. Calculate the mass of the planet from this information.
A rifel with a barrel length of 63cm fires a bullet with a horizontal speed of 380m/s. How long does it take for the bullet to come to rest after entering the wood
A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. How many revolutions per minute is the sample making
The output signal intensity of the transducer is 40 Watt / cm2. The echo returning from a reflector deep inside the patient is 0.025 Watt / cm2. How many dB is the ratio of output signal to echo?
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