Pls and show work
a boy pushes a 5 kg box across the floor with a force of 25 n. there is a 5 n frictional force opposing him. what is the net force and the acceleration of the box?
(50 n in direction of boy’s push; 4 m/s/s)
(20 n in direction of boy’s push; 10 m/s/s)
(200 n in direction of boy’s push; 4 m/s/s)
(20 n in direction of boy’s push; 4 m/s/s)
Answers: 2
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The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element
Answers: 1
Physics, 22.06.2019 22:00
On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.
Answers: 2
Physics, 22.06.2019 23:00
Awelder using a tank of volume 7.50×10^-2 m^3 fills it with oxygen (with a molar mass of 32.0 g/mol ) at a gauge pressure of 3.30×10^5 pa and temperature of 37.1 ∘c. the tank has a small leak, and in time some of the oxygen leaks out. on a day when the temperature is 23.1 ∘c, the gauge pressure of the oxygen in the tank is 2.00×10^5 pa . a) find the initial mass of oxygen. b) find the mass of oxygen that has leaked out.
Answers: 3
Pls and show work
a boy pushes a 5 kg box across the floor with a force of 25 n. there...
a boy pushes a 5 kg box across the floor with a force of 25 n. there...
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