KRAUS 2 Sebuah objek yang berjisim 2 kg ditarik di atas tanah dengan daya 5 N dan
halaju malar
An object of mass 2 kg is pulled on the floor by a force of 5 N and has a constant
velocit
(a) Berapakah daya geseran antara objek dan tanah?
What is the frictional force between the object and the floor?
(b) Hitungkan pecutan objek itu jika objek itu ditarik dengan daya 17 N.
Calculate the acceleration of the object if the object is pulled by a 17 N force.
Penyelesaian / Solution:​

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this

Language is not the only way that humans communicate. describe how we use sound, touch, chemicals, and sight to communicate. need answer asap