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Question 1
Select a street, road, or highway near your home and record the speed limit in mi/h. Convert the speed to m/s and km/h.
Question 2
A car is traveling at a constant velocity of 100 km/hr. What is the distance it will travel in one minute? Express your answer in meters.
Question 3
A car is initially traveling at 20 m/s when it accelerates to 35 m/s in a time of 5 seconds. What is the acceleration of the car in m/s2?
Question 4
Suppose a car's brakes can produce an acceleration of -7 m/s2. If the car is traveling at an initial speed of 28 m/s, what is the minimum distance necessary to stop the car?
Question 5
A one-meter long rifle fires a bullet at a velocity of 800 m/s. What is the average acceleration experienced by the bullet when it is fired? (Hint: You need to find the time it takes the bullet to travel the length of the barrel first. The bullet is initially at rest in the rifle.)
the work done by an external force to move a -8.20uc charge from point a to point b is 1.80times10-3j . if the charge
A jet lands at 54.4 m/s, the pilot applying the brakes 2.45 s after landing. Find the acceleration needed to stop the jet within 5.17 x 10^2 m after touchdown.
The electric potential at a position located a distance of 21.0 mm from a positive point charge of 8.30×10-9C and 10.9 mm from a second point charge is 1.02 kV. Compute the value of the second charge.
A 9500-pF capacitor holds plus and minus charges of 16.5 x 10^-8. What is the voltage across the capacitor
An automobile and a truck start from rest at the same instant, with the automobile initially at some distance behind the truck. What is the speed of the truck when they are abreast
How much longer should the minimum length of a plane mirror be for a 6 ft 3 in man to see his complete head-to-toe image than for a 5 ft 3 in woman to do so?------in
suppose a manufacturing company makes a certain item. the time to produce each item is normally distributed around a
A water slide launches a child horizontally above a swimming pool. How far from the launch point does the child land in the water
A beaker of mass 1.5kg containing 3.2kg of water rests on a scale. A 3.2kg block of a metallic alloy of density 53400 kg/m is suspended from a spring scale is submerged in water of density 1000 kg/m.
An internal explosion breaks an object, initially at rest, into two pieces. One piece (m1) is 2 times more massive than the other (m2). find how much kinetic energy did each piece get
Calculate the force required to hold a long bow with the string pulled back just before releasing the arrow
What will be the speed if the string is replaced by one made of the same material and under the same tension however having twice the radius? (Answer in m/s)
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