Q: e “work function” of the metal lithium is 4.6x10-19 J. If irradiated with light of frequency…
A: GivenWork function, ϕ=4.6×10-19 JFrequency of light, f=9.5×1014 Hz
Q: A 1200 watt hair dryer is connected to a 120 volt outlet for a time of 2.0 minutes. What is the…
A: Given: The power is 1200 W. The supply voltage is 120 V. The time interval is 2 min.
Q: cm away from it. Find the place whe athematically and
A: GivenD=9 cmObject distance, u=-30 cm
Q: Focal length of a convex lens in air is 10 cm. a in water. Given thatu, = 3/2 and μw = 4/3. g
A: The focal length ( f ) is the distance from a lens or mirror to the focal point ( F ). Here, we…
Q: The pressure of sulfur dioxide (SO2) is 2.44 x 104 Pa. There are 433 moles of this gas in a volume…
A: Given: The pressure of the gas is 2.44x104 Pa. The volume of the gas is 58.5 m3. The number of the…
Q: You are moving at 120 km/h toward a stationary train. The train blows its 400 Hz whistle. Take the…
A: You are moving at 120 km/h toward a stationary train. The train blows its 400 Hz whistle. Take the…
Q: During 48 seconds of use, 270 C of charge flow through a microwave oven. Compute the size of…
A:
Q: As you zip through space in your PPS (personal propulsion suit), your pulse rate as you count it is…
A:
Q: A nice blue green/teal color is at a wavelength of 490 nm. What is the exact frequency of this…
A: Given Wavelength of the light is given as λ=490 nm=490×10-9 m We have to find the frequency of…
Q: Two identical disks, with rotational inertia I (= 1/2 MR2), roll without slipping across a…
A:
Q: A ball of mass m = 1.65 kg is released from rest at a height h= 44.0 cm above a light vertical…
A: The given parameter m = 1.65Kg h = 44cm =…
Q: A ski lift is pulling a skier up a hill. The coefficient of friction is 0.4. The operators want the…
A:
Q: A proton is confined to moving in a one-dimensional box of width 0.200 nm. (a) Find the lowest…
A:
Q: A wire 15 cm long and carrying a charge of 400 C within 2 minutes is placed in between the pole pace…
A: Wire length, L= 15 cm= 0.15 m The wire is carrying charge Q= 400 C in time t= 2 mins= 120 seconds.…
Q: A copper wire of length L = 4000 meters has a uniform cross sectional area of A = 1.00 x 10-5 m2.…
A: Given: The length of the wire is 4000 m. The area of the wire is 1x10-5 m2. The length of the wire…
Q: ou apply a flame to 2 L of water for a certain time and its temperature rises by 2°C. If you apply…
A:
Q: student builds a circuit in which an AC power supply with an rms voltage of 230 V is connected to a…
A: student builds a circuit in which an AC power supply with an rms voltage of 230 V is connected to a…
Q: Suppose a star is 6.42 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth…
A: Suppose a star is 6.42 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth…
Q: Fill in the blanks.. In 1887, Heinrich Hertz discovered a)....................... waves. His…
A: Fill in the blanks. About hertz experiment.
Q: One mole of an ideal gas initially at a temperature of T₁ = 4.6°C undergoes an expansion at a…
A:
Q: In a hydrogen atom an electron is orbiting a proton. There are two forces between the electron and…
A:
Q: Two plane mirrors make an angle a = 54.0° between them. A ray of light incident on one of the…
A:
Q: Estimate the time needed for a glycine molecule to diffuse 15 um in water at 20^o C if its…
A:
Q: The speed of light in air is approximately v = 3.00 × 108 m/s and the speed of light in glass is v =…
A: The given values are listed below. c=3×108 m/sv=2×108 m/sλ=608 nm=608×10-9 m Here, c is the speed of…
Q: A 5.0 m wire with a current of 2 A is exposed to a magnetic field with 0.6 T that is directed…
A: GivenL = 5.0 mI = 2 AB = 0.6 Tθ = 0° ( As direction of magnetic field is parallel to the wire)
Q: Frank can see fine at long distances but now needs to hold a restaurant menu at 50.0 cm from his…
A: distance at which the restaurant menu card is held = 50 cm distance of lens from cornea surface =…
Q: what is the pairity of Blsmuth 2l2? (gr0und state) What is the spin? (The lowest spin, there may…
A:
Q: essure on a shot putter's hand as he throws the heavy shot. Calculate the average pressure, in…
A: GivenArea of contact, A=48.5 cm2=48.5×10-4 m2Force exeted , F=795 N
Q: What is the current for the circuit shown? www R13 5Q R17 10 Q + V2 12 V R16 25 Ω ⒸVV. + V1 12 V R15…
A:
Q: A 24-V automotive battery is rated at 84 Ah. If a 50-W, 24-V bulb is connected across this fully…
A: Solution:- 1) A 84 Ah rated battery means, it can provide 84 Ampere current for 1hour or 42 ampere…
Q: After a party the host pours the remnants of several bottles of wine into a jug. He then inserts a…
A:
Q: 3. Consider the wave shown. Assume its frequency is f = 12.0 Hz. Determine its a) Amplitude b)…
A:
Q: i. A traveling electromagnetic wave in a vacuum has an rms electric field amplitude of 59.7 V/m.…
A:
Q: 3. A spaceship is travelling toward a target with relative speed 0.5c. a) The spaceship fires a gun…
A:
Q: Review Conceptual Example 6 before working this problem. For water vapor in air a 293 K, the…
A: Given Data, Temperature of water vapor (T)=293 K The diffusion constant is (D)=2.4 x 10-5 m2/s…
Q: Given: R₁ = 100 R₂ = 200 R₂ = 300 R₁ = 400 R₂ = 150 R = 450 R₂ = 250 R₂ = 350 81 R₁ £₁ = 50V &₂ =…
A:
Q: 5. A circuit has an electrical power of 30W and a total resistance of 90. What is the circuit's…
A:
Q: The nuclear process whereby multiple hydrogen atoms are combined under intense pressure and high…
A: Fission- When a neutron collides with a larger atom, it causes it to excite and split into two…
Q: Determine the wavelength of the maximum amount of radiation emitted by surface at 49 °C. Express…
A:
Q: In a double‑slit interference experiment, the wavelength is ?=587 nm , the slit separation is…
A: Given In a double‑slit interference experiment, the wavelength is λ=587 nm The slit separation is…
Q: How many celsius degrees are 300 K? Show computation
A:
Q: The mass of a hot-air balloon and its occupants is 361 kg (excluding the hot air inside the…
A:
Q: The left ventricle of a resting adult’s heart pumps blood at a flow rate of 83 cm3/s, and an average…
A: Write the given data with the proper variables. Q=83×10-6 m3/sΔP=75.5 mm Hg=75.5 mm Hg×133.32 Pa1 mm…
Q: Find the coefficient of friction that will keep the block from moving. Fapp= 200 N 40° 60kg
A:
Q: A surface at 27° C emits radiation at a rate of 100 W. At what rate does an identical surface at 49…
A: Temperature (T) = 27oC = 300 K Power (P) = 100 W
Q: If a cup of coffee has a temperature of 90 celsius and you quickly sip a bit of it. What is the…
A: Temperature of the coffee left in the cup will be same ,i.e., 90℃.
Q: Please answer F G H thank you
A: Length, resistivity and area of cross section are given
Q: You perform a double‑slit experiment in order to measure the wavelength of the new laser that you…
A:
Q: In the figure, light is incident at angle 0₁ = 37° on a boundary between two transparent materials.…
A:
Q: The pressure drop along a length of artery is 104 Pa, the radius is 8.5 mm, and the flow is laminar.…
A:
Step by step
Solved in 2 steps with 1 images
- A group of students conducted a bulk density experiment. The students were able to measure the mass of various cylinders and calculate their volume. By plotting volume vs. mass, the students found a linear graph. What does the slope of this graph represent?Consider an object falling through air, where p, is the density of the object, pair is the density of the air, m is the mass of the object, A is the effective cross-sectional area of the object, vT is the terminal velocity of the object, and I is the drag coefficient of the object. How does the terminal velocity of the object change when these physical properties are changed? UT increases UT remains the same Ur decreases Answer Bank Po doubles I doubles A doubles m doubles Pair doubles Pair and A double m and A doubleAn object hangs from a spring balance.The balance registers 32 N in air, 22 N when this object is immersed in water, and 27 N when the object is immersed in another liquid of unknown density. What is the density of that other liquid? Number i Units V
- A circular air duct 15.0 cm in radius is used to replenish the air of a room that is 9.20 m by 5.00 m by 4.50 m every 15.0 minutes. How fast does the air flow in the duct? Please show the explanation and equations used.Q4/ A/ A tank filled with kerosene was excavated at a height from the bottom level. How the initial velocity can be calculated at the exit hole?The atmospheric pressure above a swimming pool changes from 745 to 764 mm of mercury. The bottom of the pool is a 27.7 m x 28.1 m rectangle. By how much does the force on the bottom of the pool increase? Number IN Units
- One end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. The tension in the wire is 469 N. What is the radius of the brass ball? Number i eTextbook and Media Unitsa) Above what speed does a 3.0-mm-diameter ball bearing in 20°C water experience quadratic drag? b) Below what speed does a 3.0-mm-diameter ball bearing in 20°C air experience linear drag? Need a typed answer by keyboardThe karat is a dimensionless unit that is used to indicate the proportion of gold in a goldcontaining alloy. An alloy that is one karat gold contains a weight of pure gold that is one part in twenty-four. What is the volume of gold in an 18.0-karat gold necklace whose weight is 1.90 N?
- A ping pong ball of mass 2.6 grams and 38 mm in diameter is supported by an air jet. The air has a density of 1.20 kg/m3 and kinematic viscosity of 1.5 x 10-5 m2/s. What is the speed of the air jet if the ping pong ball remains stationary? Assume a constant drag coefficient of 0.45. a. 3.021 m/s b. 288.610 m/s c. 9.127 m/s d. 83.302 m/sPlease draw the picture of the problem and explain why the author picked this initial condition in the solution.Running on a treadmill is slightly easier than running outside because there is no drag force to work against. Suppose a 60kg runner completes a 5km race in 23 minutes. A) Determine the drag force on the runner during the race. Suppose that the cross section area of the runner is 0.72m^2 and the density of air is 1.2mg/m^3 B) What is this force as a fraction of the runner's weight?