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Q1. From t = 0 to t = 5.00 min, a man stands still, and from t = 5.00 min to t = 10.0 min, he walks briskly in a straight line at a constant speed of 2.1 m/s.
(a) What is his average velocity v avg in the interval 2.000 min to 7.80 min?
(b) What is his average acceleration a avg in the interval 2.00 min to 7.80 min?
(c) What is v avg in time 3.00 min to 9.00 min?
(d) What is an avg in time 3.00 min to 9.00 min?
Q2. A vertical scale on a spring balance reads from 0 to 160 N. The scale has a length of 12.5cm from the 0 to 160 N reading. A fish hanging from the bottom of spring oscillates vertically at the frequency of 2.30 Hz. ignoring the mass of the spring, what is the mass m of the fish?
A wheel spinning at 25 rev/s is slowed to a stop by a constant acceleration while turning 50rev. What is the magnitude of the constant acceleration
Assuming that the disks form a circular parallel plate capacitor and the electron are initially at rest when they pass through the first disk. A) determine the acceleration that the electrons undergo and B) the speed of the electrons as they pass ..
A delivery truck travels 29 blocks north, 18 blocks east, and 26 blocks south. Assume the blocks are equal length. What is the magnitude of its final displacement from the origin
An object starting from rest accelerates with a constant acceleration A(none) for a time T(none) after which it moves at a constant velocity for T1 seconds. what is the total distance the object traveled
A town is planning on using the water flowing through a river at a rate of 5.0 x 106 kg/s to carry away heat from a new power plant, What is the maximum power this plant can produce
What is the rate of change entropy of the first reservoir.
Fill a glass with water. Look down through the water, and then through the glass to your hand on the outside. Can you see it? Tip the glass towards you and watch your hand disappear. Why? Do you know what physical phenomena this observation is rel..
Elements that appear in the same column of the periodic table often share similar chemical properties. In the case of the alkaline earth metals, calculate the path radius of the Ca ion
A 148 gram baseball is hit toward the left by a bat. The magnitude of the force the bat exerts on the ball as a function of time, Find the magnitude of the impulse that the bat imparts to the ball
question1a small ball of mass 2x10-3 kg having a charge of 1uc is suspended by string of length 0.8 m. another
A coal fired plant generates 600 MW (5.18 x 10^13 J/day) of electric power. The plant burns 4.8 x 10^6 kg of coal each day. what is the ideal efficiency of this plant
In a railroad yard, a 3.5×10^4 kg boxcar moving at 6.0 m/s is stopped by a spring-loaded bumper mounted at the end of the level track
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