Acopper wire is stretched so that its length increases and its diameter decreases. as a result:
a. the wire's resistance decreases, but its resistivity stays the same.
b. the wire's resistivity decreases, but its resistance stays the same.
c. the wire's resistance increases, but its resistivity stays the same.
d. the wire's resistivity increases, but its resistance stays the same.
Answers: 2
Physics, 22.06.2019 03:00
According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?
Answers: 1
Physics, 22.06.2019 06:00
(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.
Answers: 1
Physics, 22.06.2019 16:00
Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.
Answers: 2
Physics, 22.06.2019 16:40
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
Acopper wire is stretched so that its length increases and its diameter decreases. as a result:
Mathematics, 28.09.2019 21:40
Mathematics, 28.09.2019 21:40
Biology, 28.09.2019 21:40
Social Studies, 28.09.2019 21:40
Mathematics, 28.09.2019 21:40
Chemistry, 28.09.2019 21:40
Social Studies, 28.09.2019 21:40
Biology, 28.09.2019 21:40
History, 28.09.2019 21:50
Computers and Technology, 28.09.2019 21:50