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An electric vehicle starts from rest and accelerates at a rate of 1.8 m/s2 in a straight line until it reaches a speed of 29 m/s. The vehicle then slows at a constant rate of 1.5 m/s2 until it stops.
(a) How much time elapses from start to stop?
(b) How far does the vehicle move from start to stop?
A student at another university repeats the experiment you did in lab. Her target ball is 0.860 m above the floor, What is the kinetic energy (in joules) of the target ball just after it is struck
A car is traveling at 43.2km/hr on a flat, concrete highway. If the brakes are applied such that skidding occurs, the kinetic coefficient of friction between the road and tires is 0.808. If anti-lock brakes are properly applied after that no skidd..
q. having completed the basics of the memory system we turn not to issues involving memory. one important issue is the
Perform the following unit conversions for parts (A) in the table below (B) through. Show your work using a step-wise approach.
An object of mass m moves to the right with a speed v. It collides head-on with an object of mass 3m moving with speed v/3 in the opposite direction. what is the speed of the combined object
A child on a boat throws a 5.40 kg package out horizontally with a speed of 12.0 m/s. determine the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 26.5 kg and the mass of boat is 55.5 kg.
A 2.10 sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as the heart beats. The reflected sound is then mixed with the transmitted soun..
Your clock radio awakens you with a steady and irritating sound of frequency 600 Hz. One morning, it malfunctions and cannot be turned off. What is the frequency of this reflected sound
what is meant by 'net charge a. the total amount of positive charge of an object b. the total amount of negative charge on an object c. the total amount of neutral charge on an object d. A minus B
how far from the edge f the dock can theboy move until the plank is just on the verge of tipping? Explain how can the boy test this conclusion without falling in the water?Explain
When an ambulance is stationary, the siren gives off a sound at a frequency of 500Hz. What is the frequency of the stationary siren
Estimate the gravitational force between the Sun and Venus. The mass of the Sun is 1.99×10^30 kg. The mass of Venus is 48.7×10^23 kg. The distance between them is 10.8×10^10 m.
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