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A force applied to an object of mass m1 produces an acceleration of 2.00 m/s square.
(A) what is the ratio m1/m2
(B) if m1 and m2 are combined,find their acceleration under the action bof the force F
A spacecraft is moving relative to the earth. An observer on the earth finds that, between 1 P.M and 2 P.M. according to her clock, 3601 s elapse on the spacecraft’s clock. What is the space craft’s speed relative to the earth?
Direction: Solve the following problems stated below. Show your solutions.
1. Find the resistance of a 190m titanium wire with cross sectional area of 0.55mm^2. The resistivity of titanium is 420Ωm.
2. A piece of number 10 aluminum wire has a diameter of 2.59mm. How many meters of number 10 aluminum wire is needed to give a resistance of 1Ω? The resistivity of the aluminum is 2.8x10^-8Ωm.
Direction: Answer the following problems stated below. Show your solutions.
1. Determine the amount of current produced by a charge of 4.55x10^-17 C 5s along a straight conductor.
2. How many electrons will flow through an appliance for each if the current through the appliance is 0.85A
3. Consider a current of 0.55A flowing steadily through a conductor. How many charges pass through the wire in a span of 2 minutes?
An ideal step up transformer is primary coil has 500 turns and it’s secondary coil has 15,000 turns. The primary EMF is 120V. What is the EMF of the secondary?
A depth of 10m of water exerts the same amount of pressure as the entire Earth's atmosphere which is~120km thick.Suggest why
4. A particle of mass in moves with momentumn of magnitude p.
(A) Show that the kinetic energy of the particle is KE = (P ^ 2)/(2m)
(B) Express the magnitude of the participle's momentum in terms of its kinetic energy and mass.
3. A block of mass m = 2 kg is placed on an inclined plane of angle theta = 30 degrees as shown in Figure 1 The block is released from rest at the top of the plane, where the distance from the bottom is d = 10 m.
(B) How long does it take the block to reach the bottom, and what is its speed just as it gets there?
(A) Find the magnitude of the acceleration of the block and the normal force exerted on the block
A 10-kg crate i s at rest on a surface i nclined at a 45-degree angle. Suppose
that the static friction coefficient between the crate and the inclined surface is 0.50.
A 3000-km long cable consists of 7 turns, with diameter of 0.73mm each. Calculate the resistance R of the cable. The resistivity of the copper wire is 3x10-6 Ω.cm.
#340153 on Dec 2023