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You and a friend each drive 67 km to the same destination. You travel at 88.9 km/h and your friend at 98.8 km/h.
How long will your friend wait for you at the end of the trip?
A string under a tension of 58.5 N is used to whirl a rock in a horizontal circle of radius 2.75 m at a speed of 20.5 m/s on a frictionless surface, What is the breaking strength, in newtons, of the string
A 50 kg sled is subject to a net force of 20 N pushing in the direction of the sled motion as it is moving over a horizontal surface for a distance of 11 m after having started from rest. find the work done by friction while the sled is on the incl..
In an experiment in physics class, a model solid-fueled rocket is fired vertically with an acceleration of 3 m/sec2 for 6 seconds. After that time, What is the maximum altitude the rocket reaches
An object is placed 15 cm from a converging lens with a 5.0-diopter refractive power. At what distance from the object will the image be located
High-altitude mountain climbers do not eat snow, but always melt it first with a stove. Calculate the energy absorbed from a climber's body if he eats 0.70kg of -15?C snow which his body warms to body temperature of 37?C
You bring a 350-g wrench into the house from your car. The house is 15 C warmer than the car, and it takes 2.52 kJ of energy to warm the wrench by this amount. Find (a) heat capacity of the wrench and (b) specic heat of the metal it's made from.
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. How many dark fringes are observed when 600 nm light illuminates the slides from directly above
In the Biomedical and Physical Sciences building at MSU there are 127 steps from the ground floor to the sixth floor. How much work did the person do
A car traveling at 25 m/s ( about 55 mph) crashes into a road barrier and comes to a stop in 0.2 sec. What is the average force in Newtons felt by a 75 Kg person in a set belt
An object 2.00 cm high is placed 41.0 cm to the left of a converging lens with a focal length of 30.0 cm, Determine the magnification of the final image
a person's reaction time is generally not quick enough to allow the person to catch a dollar bill dropped between the fingers. If a typical reaction time in this case is 0.25 s
The first has a magnitude of 128 cm and makes an angle of 113 degrees with the positive x axis. The resultant displacement has a magnitude of 180 cm and is directed at an angle of 39 degrees to the positive x axis.
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