A car moving with a speed of 35 m/s sees a child standing in the
middle of the road. The driver of the car applies brakes and brings the
car to rest in 5 sec, just in time to save the child. Calculate the average
stopping force of the vehicle, if the mass of vehicle and the driver is
300 kg.
Answers: 3
Physics, 21.06.2019 18:30
Which of the following correctly describes the early view of catastrophism?
Answers: 1
Physics, 22.06.2019 07:40
Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents
Answers: 2
Physics, 22.06.2019 10:00
(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
Answers: 3
Physics, 22.06.2019 11:30
Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?
Answers: 3
A car moving with a speed of 35 m/s sees a child standing in the
middle of the road. The driver of...
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