Q: 12.) Light is incident on a photoelectric apparatus made with sodium plates. The distance between…
A:
Q: 3. List TWO differences between charging an object by contact and charging an object by friction.
A: Answer:- Charging an object by friction:- (1) When an object is charged by friction, there is…
Q: A car travels with a speed 12 m s❞1, while a scooter travels with a speed 36 km h-1. Which of the…
A: speed of car (u) = 12 msspeed of scooter (v) = 36 kmhr
Q: Using the scalar product of two vectors, determine the angle between the two vectors listed below:…
A:
Q: Determine the magnitude of the vector sum V = V₁ + V₂ and the angle 0x which V makes with the…
A:
Q: except for photoemission, is there any other term for photoelectric effect?
A: Answer:- The photoelectric effect is the emission of electrons when electromagnetic radiation, such…
Q: 1. What is the scalar product of vectors X and Y, if X = 3.00 î+ 5.00 ĵ and Y = 3.00 î - 5.00 ĵ? A.…
A: According to question we need to find--- scalar product of given vector?
Q: The vectors A and B are given by A = 2î + 3j and B = -i + 29. (A) Determine the scalar product…
A:
Q: A machine gun fires 15 bullets / each of mass 34 g the speed to each bullets is 40 cm/s, then force…
A: Answer:- Given The machine gun fires = 15 bullet/s Mass of each bullet = 34 g Speed of each…
Q: Concave lens of focal length 30cm and 50 cm was used for a pair of eyeglasses. What would be the…
A: Draw the image formation by the concave lens as below.
Q: nab
A:
Q: Express 46 km h-¹ in m s-¹
A: Given data; Express; 46 km h-1 in m s-1
Q: Determine the speed at which a satellite must be moving in order to maintain a low orbit of 151 km…
A:
Q: a projectile is fired from the origin at t. 0 with a positive v component, the maximum Hight h can…
A:
Q: A capacitor bank is designed to discharge 5.00 J of energy through a 10.0-kΩresistor array in under…
A:
Q: Given data: Force = 18 N Time = 4.6 s Find the Impulse II
A: Given data : Time = t Force = F…
Q: 2. A block of mass 30.0 [kg] slides down from the top of the incline. The coefficient of kinetic…
A:
Q: Q2 kinematics answer either c or d ball strikes the ground. c. The ball is kicked from point A with…
A:
Q: During a 2-h period of radiation therapy, alpha radiation is deposited into a patient's body at a…
A: time period (T) = 2 hr rate of deposition = 3.3×10-8 Jsmass of patient (m) = 59 kg radiation type :…
Q: 21-Which of the following can be zero, when a particle is in motion for some time? (c) distance (d)…
A: The first three subparts is answered below by following the Bartleby.com.
Q: . A flat surface with area 7.0 cm2 in a uniform magnetic field ?⃗ . The magnetic flux through this…
A:
Q: Why is it important to determine the rate of growth and decay of current in circuits?
A: If the rate of change of magnetic flux, linked with a coil changes when an ac current flows through…
Q: Layla's initial speed is 3 m/s, she traveled at a distance = 10m. Using rapid boots, it increases…
A: Given Data : The initial speed of Layla is given as vi=3 ms The distance traveled by Layla is given…
Q: Mass of a body is 2.022 kg, What is it's weight?
A: The weight of an object is nothing but the force of gravity acting on it, which is given by the…
Q: Find the gravitational potential energy of a light that a mass of 45 kg and is 8.22 m above the…
A: Given: Mass m = 45 kg Gravitational potential energy is the work done against the force of gravity…
Q: The area bounded by y=1-x2, x+y=1 and the x-axis is submerged vertically in the water with the water…
A:
Q: R₁ 5Ω R₂ 10Ω + R₂50 E₁ 20 V E₂. 10 V In the above network, solve this network using branch current…
A: Current i1= 2.4 amp Current for i2= 1.2 amp
Q: find density in kg m 3
A: Given data; Density of steel; d=9.8 g cm-3 Find density in kg m-3 ?
Q: 3.64 A 2.7-kg ball is thrown upward with an initial speed of 20.0 m/sm/s from the edge of a 45.0 mm…
A: Given Datam=2.7kgu=20 m/sh=45mmV=6 m/s
Q: Question 1 Using the definition of voltage (or potential) for a point charged object, find the gain…
A:
Q: Which of the following statements explains why you cannot cool down your house by holding the…
A: The refrigerator removes heat from the kitchen and then replaces it during a cycle. The…
Q: Which one of the following amino acids is essential for humans?
A: Given; Following are the amino acids shown; Which is essential for humans ?
Q: 15. An object with mass m has moment of inertia I about its center of mass. If we take the moment of…
A: Option c right ans Increased by 9d^2m.
Q: Describe the ways you can change a sound wave’s pitch. There at least three we have studied this…
A: Sound is a vibration that propagates through a medium as pressure waves. These waves are audible to…
Q: A rickshaw puller pulls the rickshaw by applying a force of 90 N. If the rickaw moves with constant…
A: Given data : Force = F Velocity = V To find…
Q: 8.) Light of frequency 0.85 x 10¹5 Hz falls on a metal surface. If the maximum kinetic energy of the…
A: Frequency, f = 0.85×1015 Hz Maximum kinetic energy, KE = 1.7 eV Work function, Φ = ?
Q: if light has a lot of energy, it will have: A. A small frequency B. A small wavelength C. Low…
A:
Q: The figure here shows a Gaussian cube of face area A immersed in a uniform electric field that has…
A: NOTE-Since you have posted a question with multiple sub-parts, we will solve first three sub parts…
Q: -3 Density of copper = 8.98cm³ find density in kg m 3 ?
A: Given:Density of copper is 8.9 g/cm3To Find:Density of copper in kg/m3
Q: If you see a friend lying unconscious possibly due to an electric shock, what is a safe thing to do?…
A: Electric shock occurs when a person comes in contact with an electrical energy source. This may…
Q: 14. A particle is moving along the x-axis with an initial speed vo= 4.00 [m/s]. It collides with a…
A:
Q: A car is moving on a straight road 12 m/s. It is acceleration at 24.5 m/s². What will be it's…
A: Given data : Acceleration = a Initial velocity = u…
Q: Express 28 km h¹ in m s1
A:
Q: You launch a projectile horizontally from a building 35.2 m above the ground at another building…
A: Given data height h1 = 35.2 mdistance between two buildings R = 23.2 mheight where projectile hits…
Q: 1. What limitations are observed in making measurements using the: a. meter stick b. vernier caliper…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: From the given, draw on paper the ray diagram and the image formed
A: Draw the image formation for the concave lens when an object is placed at the focus f. Image…
Q: Find the mass of cork.
A: Given data; A cork having following data; Volume, v= 25 cm3 Density=0.25 g cm-3Find mass of cork ?
Q: Calculate the work done by the refrigerator if it is having a coefficient of performance of 2.3 and…
A:
Q: A mass of 'M' is attached to a spring whose upper end is fixed. The mass and stiffness of the spring…
A:
Q: Suppose a truck travels 70 kilometer in first hour and 85 kilometer in second hour. What is average…
A: Given data: Distance traveled in first hour = 70 km Distance traveled in second hour = 85 km…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Approximately how many atoms thick is a cell membrane, assuming all atoms there average about twice the size of a hydrogen atom?The density of bubble gum is about 1g/cm3. You blow an 8g wad of gum into a bubble 9cm in diameter. What is the thickness of the bubble? Use the equation: 4πr2 to help solve the problem.The volume of air in one beach ball is 36π in3. What is the volume of air in a ball whose radius is 3 inches greater than the first beach ball?
- Although these quantities vary from one type of cell to another, a cell can be 1.9 um in diameter with a cell wall 60 nm thick.The nucleus of an atom can be modeled as several protons and neutrons closely packed together. Each particle has a mass of 1.67 x 10-27 kg and radius on the order of 10-15 m. (a) Use this model and the data provided to estimate the density of the nucleus of an atom. | kg/m³ (b) Compare your result with the density of a material such as iron w = 7874 kg/m?). What do your result and comparison suggest about the structure of matter?The nucleus of an atom can be modeled as several protons and neutrons closely packed together. Each particle has a mass of 1.67 x 1027 kg and radius on the order of 10-15 m. (a) Use this model and the data provided to estimate the density of the nucleus of an atom. kg/m3
- The perimeter of a rectangular solar panel is 260.0 cm. The ratio of the length to the width is 5 to 8. What are the dimensions of the panel?One mole of atoms consists of 6.02 × 1023 individual atoms. If one mole of unicorn atoms were spread uniformly over the surface of a sphere the size of the Earth, approximately how many atoms would be found per square meter? The average radius of the Earth is 6.38 × 103 km.The radius of an atom of gold (Au) is about 1.35 Å. How many gold atoms would have to be lined up to span 4.0 mm? Express your answer using two significant figures.
- A pyramid has a square base of side x and height h. The volume V of the pyramid is given by the expression: V - x²h 3 If V is measured to 5% and h is measured to 3%, what is the percentage uncertainty of ? Remember to include the % symbol with your answer.Let ρAl represent the density of aluminum and ρFe that of iron. Find the radius of a solid aluminum sphere that balances a solid iron sphere of radius rFe on an equal-arm balance.The density of platinum is 21.45 x 103 kg/m3. a. Calculate the volume (in m3/atom) occupied per platinum atom b. Estimate the atomic diameter (in m);(The estimate uses the approximation that it is a cubic volume) c. Using this estimation, calculate the thickness of a metal foil (in m) containing 2.0 x 101 atomic layers of platinum.