Physics, 28.10.2020 19:40 garrettm162
A car weighing 12,000 N is parked on a 36° slope.
A) Find the force tending to cause the car to roll down the hill.
B) Find the acceleration of the car rolling down the hill.
Answers: 3
Physics, 21.06.2019 17:00
What is the function of the commutator in a dc motor? a. to spin the magnet b. to change direct current into alternating current c. to change alternating current into direct current d. to spin the wire coil
Answers: 1
Physics, 22.06.2019 11:30
(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?
Answers: 3
Physics, 22.06.2019 15:00
Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.
Answers: 3
Physics, 22.06.2019 21:00
On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?
Answers: 3
A car weighing 12,000 N is parked on a 36° slope.
A) Find the force tending to cause the car to rol...
Social Studies, 16.12.2019 19:31
History, 16.12.2019 19:31
Mathematics, 16.12.2019 19:31
Mathematics, 16.12.2019 19:31
Mathematics, 16.12.2019 19:31
Chemistry, 16.12.2019 19:31
Computers and Technology, 16.12.2019 19:31
Mathematics, 16.12.2019 19:31
Social Studies, 16.12.2019 19:31
Biology, 16.12.2019 19:31
Advanced Placement (AP), 16.12.2019 19:31
Mathematics, 16.12.2019 19:31