A 3-kg mass of metal of specific heat = 0.1 kcal/kg°C at a temperature of 600°C is dropped into 1.0 kg water at 20°C. With no heat losses to the surroundings, determine the equilibrium temperature of the mixture, and if it is 100°C, calculate what mass of water is turned into steam at this temperature.

Group of answer choices 100°C and 110 g of steam 100°C and 150 g of steam 100°C and 130 g of steam 100°C and 70 g of steam The equilibrium temperature is not 100°C.

Calculate the necessary heat to take an ice cube (side length = 2.54cm) from -40.0degreesC to135.0 degrees C. Calculate the heat necessary to take the ice to melting point.

IP A charge of 21.0 μC is held fixed at the origin. Part A If a -7.00 μC charge with a mass of 3.50 g is released from rest at the position (0.925 m, 1.17 m), what is its speed when it is halfway to the origin? v = m/s Previous AnswersRequest Answer Incorrect; Try Again; 11 attempts remaining Part BPart complete Suppose the -7.00 μC charge is released from rest at the point x = 12(0.925m) and y = 12(1.17m). When it is halfway to the origin, is its speed greater than, less than, or equal to the speed found in part A? Greater than the speed found in part A Lee than the speed found part in A Equal to the speed found in part A Previous Answers Correct Part C Find the speed of the charge for the situation described in part B. v = m/s

Direction of ?⃗: For each of the following find the direction of ?, ?? ?? , and ?.

(a) An infinite sheet in the ?-? plane that has current density ? = ?? ̂?. Find the directions of the fields:

i. above the sheet

ii. below the sheet

(b) A long solenoid that has a current that changes linearly from ? = ??̂to ? = −??̂in some time ? . Find the directions of the fields:

i. inside the solenoid

ii. outside the solenoid

(c) A long thin wire along the ?-axis has a constant current ? ̂? running through it. The current is suddenly turned off such that it decreases to zero in a short amount of time. (Assume the decrease in current is linear). Find the directions of the fields:

i. before the current is turned off

ii. after the current has reached zero

1. Explain in which cases the mass determination method is used:

(a) through the interaction of bodies

(b) by means of the balance.

2. What does it mean that the mass of a body has the additive property?

1. You watch your toddler nephew rolling marbles toward the top of a staircase. There are 18 steps, each 30.0 cm deep horizontally, and separated by 20.0 cm vertically. The marbles leave the upper landing horizontally and are projected into the air, bouncing down the steps until they arrive at the lower floor.

(a)Suppose the marble is projected with a speed such that it lands on the ninth step and bounces upward at the same angle at which it struck the step, at the same speed. Argue that the marble will not hit another step before striking the floor of the lower landing.

2. If you know the position vectors of a particle at two points along its path and also know the time it took to get from one point to the other, can you determine the particle's instantaneous velocity and average velocity? Explain.

A ball is shot up from a surface that is 20 m above the surface with an initial speed of 10 m/s.

1. What is the magnitude of the ball's displacement from the surface after 3.00 second has elapsed?

2. What max height will the ball reach from the surface of the earth?

3. How much time elapses between the throwing of the ball and its reaching to the earth?

4. Calculate the magnitude of the velocity of the ball after 3 seconds of throwing the ball.

True or False : When a metal washer is heated the hole will expand.

Explain the validation of Newton’s laws in an inertial framework by bringing examples of absolute and relative movements.

Two particles having charges of 0.480nC and 7.68nC are separated by a distance of 1.70m .

A: At what point along the line connecting the two charges is the net electric field due to the two charges equal to zero?

B: Where would the net electric field be zero if one of the charges were negative? Enter your answer as a distance from the charge initially equal 0.480nC

A star near the visible edge of a galaxy travels in a uniform circular orbit. It is 48,400 ly (light-years) from the galactic center and has a speed of 275 km/s.

a)  Estimate the total mass of the galaxy (billion solar mass) based on the motion of the star. Gravitational constant is 6.674×10⁻¹¹ m³/(kg·s²) and mass of the Sun M_s=1.99 × 10³⁰ kg.

b)  The total visible mass (i.e., matter we can detect via electromagnetic radiation) of the galaxy is 10¹¹ solar masses. What fraction of the total mass of the galaxy is visible, according to this estimate?

1) a) Compare pin photodiode with pn junction photodiode. Please write one application best for each pin and pn photodiode with a reason.

b) For a photodiode of depletion layer 20 micrometer and relative dielectric constant 4 and area of 0.005 mm2 calculate the depletion layer capacitance and time constant for 50 ohm resistor.

Please answer all questions, thank you in advance!

A) What is the lowest possible energy (in electron volts) of an electron in hydrogen if its orbital angular momentum is ?2 h-bar? Express your answer in electronvolts to three significant figures.

B) What is the largest value of the z component of the orbital angular momentum (in terms of h-bar) for the electron in part A? Express your answer as an integer to one significant figure.

C) What is the smallest value of the z component of the orbital angular momentum (in terms of h-bar) for the electron in part A? Express your answer as an integer to one significant figure.

D) What is the largest value of the spin angular momentum (in terms of h-bar) for the electron in part A? Express your answer using three significant figures.

E) What is the smallest value of the spin angular momentum (in terms of h-bar) for the electron in part A? Express your answer using three significant figures.

An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.280 rev/s . The magnitude of the angular acceleration is 0.895 rev/s2 . Both the the angular velocity and angular accleration are directed counterclockwise. The electric ceiling fan blades form a circle of diameter 0.800 m .

A) compute the fan's angular velocity magnitude after time 0.202 s has passed.

B)Through how many revolutions has the blade turned in the time interval 0.202 s from Part A?

C)What is the tangential speed vt of a point on the tip of the blade at time t = 0.202 s ?

D) Calculate the magnitude at of the tangential acceleration of a point on the tip of the blade at time t= 0.202 s .

E) Calculate the magnitude ar of the radial (or centripetal) acceleration of the point at the end of the fan blade.

The nuclide 236U decays with emission of an alpha particle with measured energy of 4.448 MeV and an accompanying gamma photon with measured energy of 49 keV. What is the product nucleus and does this particular decay of 236U occur to the ground state or and excited state of the product nuclide?