A heater raises the temperature of air in a room from 22 °C to 37 °C with the energy of 7500 J. If the mass of the air is 5 kg, the specific heat capacity of the air would be

Q: Find the potential energy of charges q1 and q2 located in the xy-plane: q1 = −3.6 × 10–9 C at (0.12…

A: Given that, The position of charge q1 in the x-y plane is (0.12m, 0.45m) The value of charge…

Q: Find the electric field at the origin if a 0.0002 C charge is placed 4.3 m directly above the origin…

A:

Q: In a test run, a certain car accelerates uniformly from zero to 16.8 m/s in 2.70 s. (a) What is the…

A: For part (a) Initial velocity is zero.  u = 0 Final velocity, v = 16.8 m/s Time, t = 2.70 cm   For…

Q: why F3 only * Sin30, althought there are also 2m and 2m length on the start.

A:

Q: A soccer ball is punted from the ground at an angle of θ = 46 degrees with respect to the…

A: Angle, θ = 46 degrees  Time of flight, T = tm = 1.9 s Horizontal distance, dm = d = ?

Q: Find the direction of the electric field at the origin (at point (0,0)) if there are are two charges…

A:

Q: An object rolls off a tabletop with a horizontal velocity v0x = 18 m/s. The table is at a height y0…

A:

Q: Find the Voltage needed to push 6 Amps of current through a 904 2 resistor. Your Answer:

A:

Q: 7. A uniform electric field is shown below. Draw equipotential surfaces. In which direction does the…

A: The problem describes a uniform electric field and asks several questions related to equipotential…

Q: A person throws a ball upward into the air with an initial velocity of 15.0 m/s. (a) Calculate how…

A:

Q: The displacement of a block of mass 1189 g attached to a spring whose spring constant is 93 N/m is…

A:

Q: 3. An object moves along the line from point / to point 2 in time Ar. a. Suppose that the object is…

A:

Q: 2) Phineas and Ferb decided to study resistivity by measuring the resistance of coils. They plotted…

A: This problem can be solved using formula for resistivity and resistance of materials.

Q: Two sinusoidal waves with identical wavelengths and amplitudes travel in opposite directions along a…

A:

Q: A transverse sinusoidal wave is generated at one end of a long, horizontal string by a bar that…

A: Given, The string moves up and down through distance d. So, the amplitude is A=d2 Frequency is f=n…

Q: The electric potential V in the space between two flat parallel plates 1 and 2 is given (in volts)…

A:

Q: Iwo metal spheres, each of radius 4.4 cm, have a center-to-center separation of 1.9 m. Sphere 1 has…

A:

Q: A 3-kg ball moving at 1 m/s has a kinetic energy that is ____________ that of a 1-kg ball moving at…

A: Given,  Mass = 3 kg And  Second mass = 1 kg Velocity = 1m/s Second velocity = 3 m/s We need to…

Q: A capacitor consist of square conducting plates 25 cm on a side and 5.0 mm apart, carrying charges ±…

A: Given,  Length of each capacitor = 25 cm Separation between plates = 5 mm Charge on each plate = +…

Q: Water leaves a fireman’s hose (held near the ground) with an initial velocity v0 = 23 m/s at an…

A:

Q: 2. จงแสดงวิธีรวมแรงและหาค่าแรงลัพธ์รวม ดังรูป คําตอบ: F =. 25 N 135%! 10 N 15 N…

A: Calculate the horizontal component of the force. FH=−(10 N)cos135°+(15 N)(552+22)−(25…

Q: A charge of +2.40 μC is at the origin and a charge of -3.60 μC is on the y axis at y = 40.0 cm. 1)…

A:

Q: A planet of mass 7 x 1024 kg is at location m. A star of mass 9 x 1030 kg is at location m. What…

A:

Q: A projectile is launched from point A with the initial conditions shown in the figure. Determine the…

A:

Q: A cable with mass of 3kg/meter is used to lift a 250kg load from a 100 meter shaft. How much work is…

A: Given:- The linear mass density of the cable is μ= 3 kg/m The mass of the load is m = 250 kg  The…

Q: 1. Determine the magnitude and direction of the electrostatic force on charge 1 if it is 0.2 m away…

A:

Q: A +3C charge is placed between two other charges, all in a straight line. The charge on the left is…

A: Coulomb's Law: Force between two charges are directly proportional to product of charges and…

Q: 6. A weight-conscious penguin with a mass of 15.0 kg rests on a bathroom scale (see figure below).…

A:

Q: Figure 3.0 nC 10 cm 5.0 cm -6.0 nC 1 of 1 Part A What is the strength of the electric field at the…

A:

Q: A student throws a water balloon at an initial angle θ = 23° above the horizontal with an initial…

A:

Q: 2. Determine the resultant moment of the four forces acting on the rod Annau: Mo..... .... N.m…

A:

Q: An astronaut on a distant planet kicks a soccer ball at an angle of 45.1 degrees above horizontal,…

A: According to the u=11.5m/s θ=45.1 ° ay=2.87m/s We need to find Range Sy=uyt+12ayt2

Q: When the mass of an object moving at a constant speed doubles, its momentum changes by a factor of…

A: Given Information Mass of the object doubles.   We have to find the change in momentum and change in…

Q: Which of the following are true O Theories often change Astrology is a science because it involves…

A: The first question is to find out true and false in four statements given In the second question…

Q: You measure a voltage with a multimeter, and the digital display has a constant reading of 9.0 V…

A:

Q: A small mailbag is released from a helicopter that is descending steadily at 2.94 m/s. (a) After…

A:

Q: Identical 56 µC charges are fixed on an x axis at x = ±2.5 m. A particle of charge q = -15 µC is…

A: (a) The potential at y=4.5 m due to the charges on the x axis is: Vy = 2(kQ/r) = 2kQx2+y2=2(9 x…

Q: he biochemistry that takes place inside cells depends on various elements, such as sodium,…

A: Current, i = 7.49 pA = 7.49×10-12 A Time, ∆t = 1.48 ms = 1.48×10-3 s Diameter, d = 0.269 nm = 0.269…

Q: A small plane flies a distance d1 = 32 km in a direction θ1 = 64o north of east and then flies d2 =…

A: Given: Distance d1 =32 km Distance d2 =23 km Angles = 64 degrees and 18 degrees

Q: Show that flux times 0 has units of charge (i.e. check the units of Gauss’s law.

A: Gauss's law is a fundamental law of electromagnetism that relates the distribution of electric…

Q: the acceleration of gravity be means of a pendulum. She observes that the 1 meter long pendulum has…

A:

Q: A system of four capacitors is connected across a battery as shown in the figure. What is the…

A:

Q: Most workers in nanotechnology are actively monitored for excess static charge buildup. The human…

A:

Q: A raindrop has a mass of 9.0 × 107 kg and is falling near the surface of the earth. Calculate the…

A: Given            Mass of rain drop = m = 9×10-7 kg

Q: Suppose you first walk 10.5 m in a direction 20° west of north and then 22.5 m in a direction 40°…

A: The observer first walk a distance of 10.5 m in a direction 20° with west of north. Then he walks at…

Q: A 3-kg ball moving at 1 m/s has a momentum that is ____________ that of a 1-kg ball moving at 3 m/s.

A: Given Data:- Mass of the first ball is m1=3 kg Mass of the second ball is m2=1 kg Velocity of the…

Q: A parallel-plate capacitor has 4.3 cm x 4,3 cm electrodes with surface charge densities +1.0 x 10…

A: Write the expression for the electric field and susbtitute the corresponding values. E=σε0E=1.0×10−6…

Q: Question 14 Force 1 is 45 N at 270 degrees Force 2 is 10 N at 90 degrees Force3 is 41.6 N at 270…

A:

Q: Angle O nnonball is fired from a gun with a muzzle velocity of 60 m/s at an angle of 35 degrees…

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

Q: Mech Velocity HW-4 2. Below is a position versus time graph of the motion of an object that has…

A: To analyze the motion of a body from the position-time graph. Given:The graph:The data: To…

Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.