electrons have kinetic energy of 2000 eV, find (a) their speed, (b) the time needed  to traverse a distance of 5 cm between plates that our horizontal, and (c) the vertical component of their velocity after passing between the plates if the electric field is

Q: What is the angular speed of the tip of the minute hand on a clock, in rad/s?

A: Here we are using the formula:angular speed:ω=∆θ∆t................... (1)∆θ is angular distance ∆t…

Q: n can fire a bullet at 540 m/s. If the gun is almed at an angle of 55° above the horizontal and…

A:

Q: A pitcher throws a 0.186-kg baseball, and it approaches the bat at a speed of 56.6 m/s. The bat does…

A:

Q: Consider a series RC circuit for which R = 3.00 MA, C = 5.00 μF, and & = 30.0 V. Answer questions…

A: Given Information:- Resistance of the circuit is R=3.00 MΩ  =3.00 MΩ×106Ω 1 MΩ  =3.00×106 Ω…

Q: Two horizontal rods are each held up by vertical strings tied to their ends. Rod 1 has length L and…

A: Given:Length of rod 1 si L,Mass of rod 1 is M Length of rod 2 is 2L and Mass of rod 2 is 2M.

Q: A 75kN/m 6m 130kN/m 6m -4m Compute the resultant load/equivalent and of its location 60kN/m B

A: Draw the free-body diagram of the beam.

Q: 401 75 1 R m Ru w Hon {R 2 if R=300, find Req between 1 and 2

A:

Q: 2-D Motion Horizontally Launched Projectiles Part 1 Here are the equations you may need... You will…

A:

Q: Suppose a planner is designing an airport for small airplanes. Such planes must reach a speed of 56…

A: Write the given values with the suitable variables. v=56 m/sa=12 m/s2u=0 m/s Here, v, a, and u are…

Q: 11.1 B) 18.6 filled with air. The capacitance of this capacitor (in pF) C) 19.9 E. In the figure…

A:

Q: Which of the following describes an object with zero net force acting on it? Choose all The car sped…

A: Required: The situation in which the object has zero net force on it

Q: A spider of mass 6.6 x 10-4 kg hangs from a 71.2 cm long thread whose diameter is 2.0 x 10-3 mm.…

A:

Q: A car is traveling up a hill that is inclined at an angle above the horizontal. Determine the ratio…

A:

Q: 2. In this lab you will measure the acceleration due to gravity (ag) for a falling playground ball.…

A: Acceleration due to gravity is a constant term. It doesn't depend on the weight or size of the ball…

Q: A hair dryer draws 12.5 AA when plugged into a 120-VV line. Assume direct current.How much charge…

A: Current Flows in a Circuit defined as rate of flow of charge    I=Qt Where ,Q=Amount of Charge Flows…

Q: A downhill skier starts skiing down from the top of a mountain from a height H. Assuming no…

A:

Q: An electron is accelerated from rest through a potential difference 250 V. The electron enters a…

A: Write the given values with the suitable variables. V=250 Vr=3 cm=0.03 cm Here, V is the voltage and…

Q: The coordinates of an object moving in the xy plane vary with time according to the following…

A: The coordinates of the positions of an object are given by,

Q: An old-fashioned vinyl record rotates on a turntable at 45 rpm. What are (a) the period of the…

A: Given:Angular speed (ω)= 45 rpmDetermine:The period of the motion.

Q: Determine R, and IT. 100V +1 52 W M 152 3012 W 2052 W 2552 W 1002 3362 $362

A:

Q: a dog is sitting at an initial position of d, = (53 m north, 12 m east) from her home. she moves in…

A: Given: The initial position of the dog from her home is di = (53 m north, 12m east) The final…

Q: If Tim walks to his house 600m south and then to his neighbor's 300m north and the entire trip takes…

A: Given -            tim travel towards south = 600m            tim walks towards north = 300m…

Q: A car uniformly accelerates while stopping at a red light. The car was traveling 22 m/s east (about…

A: Given data:  Initial velocity (u) = 22 m/s Final velocity (v) = 0 m/s Acceleration (a) = -8.5 m/s2…

Q: 10. Two cars, A and B are moving in opposite direction at 90 km h¹ and 70 km h-¹ respectively. The…

A:

Q: Consult Multiple-Concept Example 9 to explore a model for solving this problem. A person pushes on a…

A:

Q: Five objects in a region where the acceleration due to gravity is 30.2 ft/s² are as follows: x₁ =…

A:

Q: A fireworks show is choreographed to have two shells cross paths at a height of 130 feet and explode…

A:

Q: In a cathode ray tube, an electric potential of 530V is placed between a cathode and anode (two…

A:

Q: A boat exerts a pull of 4000 N on its hawser which is wrapped about a capstan on the dock. If the…

A:

Q: did you get R = (u ^ 2 * sin (2 * theta)) / g?

A: Motion of projectile can be divided into x components and y components.

Q: Interface Conditions for Permeable Materials. An interface between free space and a perfectly…

A: The Boundary conditions are stated as: For medium 1(i.e, free space): μ1=μ0, ε=ε0, σ=0 For medium 2,…

Q: An all female guitar septet is getting ready to go on stage. The lead guitarist, Kira,who is always…

A: Let the frequency of Kira be f.

Q: A girl is standing at the edge of a cliff 100. m above the ground. She reaches out over the edge of…

A:

Q: A student measured the length of a table to be 65 cm, but the table was actually 62 cm long. What…

A: Given data: Measured length lm=65 cm Actual length la=62 cm

Q: A spring within a spring launcher is compressed a distance, x, and locked into position by a pin at…

A:

Q: 23.0 kg child plays on a swing having support opes that are 1.80 m long. A friend pulls her back…

A:

Q: A typical compact disk has a mass of 15 g and a diameter of 120 mm. What is its moment of inertia…

A: Given:Mass of the compact disk is 15g and diameter of the disk is 120mm.Formula :Write the…

Q: The displacement of an object is given as s(t) = 10t4 - 8t3 - 4 where t is time in seconds and a is…

A:

Q: Find the work associated with a force of 7.5 x10^-4 acting over a distance of 2m in an elapsed time…

A: Given : Force = 7.5 × 10-4 Distance = 2 m and time = 14 sec.

Q: Assume air resistance is negligible unless otherwise stated. Calculate the displacement in m and…

A:

Q: State how many significant figures are proper in the results of the following calculations. (a)…

A:

Q: The eyes of a person standing at the edge of a 1.2-m-deep swimming pool are 1.6 m above the surface…

A:

Q: An electron is accelerated from rest through a potential difference 250 V. The electron enters a…

A: Given:  Potential Difference (V) = 250 volts             The radius of the circular path (r) = 3.0…

Q: Which of the following best describes the work Mars does on the satellite? Choose 1 answer: The work…

A: work : work is done by the force as it displace the body along the direction of displacement…

Q: A scuba diver swimming underwater at night shines abeam of light so that it hits the water-air…

A:

Q: A light ray passes from air (n = 1.00) through a glassplate (n =1.56) into water (n =1.33). The…

A:

Q: The weight of one dozen apples is 4.3 lb. Determine the average mass of one apple in both SI and US…

A: Mass of 12 apples = 4.3 lb  So, mass of one apple = 4.3/12 = 0.358 lb  In SI unit  mass of one apple…

Q: How does the average speed of air molecules relate to the air temperature?- DRAW YOUR ANSWER

A: Millions of atoms and molecules mix to form air. They all move freely and crash with one another in…

Q: A parallel-plate capacitor is formed from two 1.2 cm-diameter electrodes spaced 2.0 mm apart. The…

A:

Q: v(t) = 4t2 - 3t3/2. What is the change in displacement (in metres) from t=1 to t=2?

A: Given:  Velocity as a function of time vt=4t2-3t32m/s. Time limit t=1 s to t=2 s. Required: Change…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.