From their location in the Periodic Table, which of the following elements tend to lose 2 electrons when they form ions? A Calcium and Selenium Beryllium and Calcium Beryllium and Oxygen Oxygen and Selenium

Q: The British Thermal Unit (BTU) is defined by the heat needed to raise the temperature of one pound…

A: Determine the heat in kilocalories.

Q: What are the wavelength and propagation speed for a wave of frequency 6.771 MHz in copper? copper…

A: Given data- Frequency, F=6.771 MHz=6.771×106 HzResistivity, ρ=1.68×10-8 Ω-mHere, Conductivity σ of…

Q: 5. The Nimitz class aircraft carrier has a 333 m long steel deck when moving through the icy North…

A: Given : Lo = 333 m To = 0.1°C T = 20.5°C

Q: 6. A 5 kg block is accelerated from rest by a compressed spring of spring constant 600 N/m. The…

A:

Q: Q4. Convert these into proper vector notation: Westward velocity of 42 km/h. Position 6.5 measured…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Consider two concentric conducting shells of radii R1 and R2 respectively. We will fill the gap…

A: Given:Radius of inner circle, R1 radius of the outer circle, R2 resistivity of the dielectric,…

Q: Find the position function r(t) from the given velocity function r'(t) = 4ti + (3t2 – 1)j, r(1) =…

A:

Q: Question 1.1 The transmembrane potential is measured at two points along a nerve axons (-5 cm and 5…

A: Assume the conduction velocity is 5 ms=0.5 cmms.  On x-axis take the time in milliseconds. In every…

Q: What is a right handed co-ordinate system?

A: Right handed co-ordinate system is a cartesian coordinate system where the third axis is determined…

Q: An iron ion (Fe3+) has a mass of 9.27x10^-27kg. The iron ions are accelerated from rest through a…

A: Given: Mass of ion m = 9.27(10-27 ) kg Potential difference V =2.15 kV Radius r = 8.72 cm in…

Q: Tutorial Exercise A 195-km-long high-voltage transmission line 2.00 cm in diameter carries a steady…

A:

Q: Lightning and thunder are produced at the same instant during a storm, but each travel at different…

A: Given data: The speed of the ligth is c=3×108 m/s The speed of the sound is v=343 m/s   Part A:…

Q: *57 G0 A puck of mass m = 1.50 kg slides in a circle of radius r = 20.0 cm on a frictionless table…

A: Given data:  Mass of puck (m) = 1.50 kg Radius of circular (r) = 20.0 cm Mass of cylinder (M) = 2.50…

Q: At what temperature is the reading on a Fahrenheit scale twice the reading on a Celsius scale?…

A: Given: The reading of the Fahrenheit scale is twice of reading on the celsius scale.

Q: Find the max range if the projectile speed is 3.0 m/s.

A: Range of projectile is u2sin2θg. Range of projectile is 0 when θ = 00 Range of projectile is maximum…

Q: The electric potential cannot be calculated from the electric field. Select one: O True False

A: Electric potential: around of work needed to move a unit of  electric charge from a reference point…

Q: What is the current in a 43 k2 resistor with 110 V across it? Hνα ΑΣφ I = 2.55 A Submit Previous…

A: a) Given data The resistance of the resistor is given as R=43 kΩ. The voltage across the resistor…

Q: 46. In designing a stunt for the next installment of the great Christmas film Die Hard, John McClane…

A: The elevator travels downward at a speed vE=2.5 m/s, and is d=8.0 m below John when he steps off of…

Q: Starting at time t = 0, an object starts moving along a straight line. Its coordinate in meters is…

A:

Q: Part A What's the current in a 17 mH inductor when the stored energy is 48 µJ ? Express your answer…

A:

Q: Trial sin e1 sin 02 (degrees) 30 (degrees) 12 0.5 0.208 2 40 15 0.643 0.259 3 50 17 0.766 0.292 4 60…

A: Explain:13 As per the requirement of you We solve question 13  From table given  We plot the graph…

Q: A 1-kg metal ball slides across an incredibly smooth table at 5 m/s and hits a 0.2-kg metal ball at…

A: For the given problem, we need to check the law of conservation of momentum and energy before and…

Q: 2. A stack of bricks with mass m=200 kg is sitting on a frictionless ramp, connected to a rope as…

A: Given that:- Mass of the stack of bricks=m=200kg

Q: A sphere of linear magnetic material is placed in a uniform magnetic field B = 1.13 T. What is the…

A:

Q: 4. Show that functions (a) x = A sin wt, (b) x = A sin wt + B cos wt, (c) x = A cos(@t + ¢)

A: The given equations are, a) x = A sin ωtb) x = A sin ωt + B cos ωtc) x = A cos ωt+ϕhere,ω = ksMA, B,…

Q: Find the magnetic flux through a circular loop 4.4 cm in diameter oriented with the loop normal at…

A: Given data:  Diameter of loop (d) = 4.4 cm = 4.4 × 10-2 m Angle between normal of loop and magnetic…

Q: Find the impedance of a circuit consisting of a 1.5 k2 resistor, 6.0 µF capacitor, and 60 mH…

A:

Q: Which of the which of the legs supports about half of the table's weight?

A: Required : Which leg will support about half of the table's weight.

The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: