Q: How does temperature affect the time measured by a pendulum clock? More precisely, consider a clock…

A: solution is given as

Q: Solar heating of a house is much more efficient if there is a way to store the thermal energy…

A: Here we have to find the mass of the slab. Considering that the slab is 12 m2 in size and 25 cm…

Q: The magnitude of the buoyant force is equal to

A:

Q: Why does a balloon stick to your sweater?

A: If balloon rub with sweater, electron transfers on sweater hence it becomes negatively charged and…

Q: A concrete railroad tie has a length of 3 meters on a hot sunny day 35-degree Celcius day. What is…

A:

Q: Imagine we have created layers of ice on the surface of a platform and then propped it up at  an…

A:

Q: A typical timber wolf has a mass of 40 kg, a typical jackrabbit a mass of 2.5 kg. Given the scaling…

A:

Q: A pronghorn, the fastest North American animal, is capable of running at 18 m/s (40 mph) for 10…

A: A pronghorn's temperature rise during the run ,

Q: The most dangerous particles in polluted air are those with diameters less than 2.5 μm because they…

A: Stoke's velocity is given by:

Q: A person holds her hand out of an open car window while the car is driving through still air at 65…

A: given -            speed of car =65 mph

Q: and out of an open car window while the car is drives through still air at 65 mph. Under standard…

A: Givenvelocity of car, v=65 mph

Q: Small liquid drops are spherical but large ones are elliptical. Why?

A: Liquid drop assume spherical in shape because drop always tends to acquire minimum surface area due…

Q: Which is/are true about surface tension? The SI unit of surface tension is pound per meter Surface…

A: SURFACE TENSION: Surface tension is a tendency of a liquid at rest to shrink into minimum possible…

Q: A child's cubic play block has a mass of 119 g and sides of 5.5 cm. When placed in a bath tub full…

A: Given :     Mass of the cubic play block, m = 119 g = 0.119 kg     Sides of the cubic play block, a…

Q: A large glass beer mug that has a temperature of 0°C has a capacity of 1000.0 cc. The mug is filled…

A:

Q: Theories and experiments not only help increase our understanding but also generate new…

A: The standard model briefs about the interaction of the building blocks of matter governed by the…

Q: Your pet cricket chirps 112 times in one minute (60.0 s). Whatis the temperature in degrees…

A: Given data: The time is: t = 60 sec The total number of chirp is: N The temperature in Fahrenheit…

Q: The center of gravity coincides with the :center of mass

A: The answer is (b) .

Q: A container is filled with a liquid and there is a bubble in the container. The container is moved…

A: A container is filled with a liquid and there is a bubble in the container. The container is moved…

Q: A 56-kg person is being pulled away from a burning building as shown in the figure above. (b)…

A: The tension in the two ropes through which the person is hanging can be resolved into their vertical…

Q: What percent of an iceberg is visible above the surface of the seawater with Pice = 0.917 g/cm3 and…

A: Given:Density of ice, ρi=0.917 g/cm3Density of seawater, ρw=1.03 g/cm3

Q: How is an airplane able to fly upside down?

A: Flying upside down is not that different than a normal upright flight. The same principle applies in…

Q: A meteorite enters the Earth's atmosphere at 10 times the speed of sound.  If all of the kinetic…

A:

Q: The numbers in the following circuit represent capacitances in microfarad. Find the value of x if…

A:

Q: 7. An amateur meteorologist insists that clouds moving with the wind follow lines of constant…

A: Solution: As per the given statement,   It is explained below as follows:

Q: In order for a balloon launch to be interesting, we will want to tie some sort of payload to the…

A: Given: Mass, m=2.7 kg Density of hydrogen, ρH=0.0898 g/L For lifting Payload by balloon, Weight of…

Q: A boat travels 50 miles downstream in 2 hours and it takes 5 hours to travel back upstream. What is…

A:

Q: 6. A 2 kg mass is dropped to the ground through a conducting loop. The mass starts 3 meters off the…

A: Given: mass, m = 2 kg  initial height of mass, h = 3 m  initial velocity, u = 0 final velocity, v =…

Q: How much force would they apply on each other if they were 5mm apart?

A: Answer is 4.0 mN  It is clear from graph , at distance of 0.5mm force is 400 mN . Further…

Q: When a wood block is resting on a table, which of the following affects the coefficient of kinetic…

A: The correct options are  (1) and (2) .  i.e coefficient of kinetic friction affects from the The…

Q: What is the weight of a cube with density 100 g/cm^3 and sides 0.2 r 4 mo-2m 800 N in = mg 80 N 8000…

A: Given, Side of the cube, a = 0.2 m density of the cube, ρ = 100 gcm3

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: On unit area, A , the amount of force, F acting is the pressure, P experiencing there.  That is,…

Q: r₁=0.8 cm Q1 Wire Q2 ₂=1.4 cm

A:

Q: When two bodies of different temperatures and masses are put in contact,   a the hotter body heats…

A: Heat is the form of energy which is transferred from one object to another when they are in contact…

Q: Dr. Hewitt has clay "blobs" hanging on either side of his head. When he turns around, what happents…

A:

Q: A jet of diesel with relative density 0.8 strikes normally a plate with a velocity of 12 m/s. The…

A: When a fluid of density "ρ", speed "v" and cross section area "A" hits normally to an object then…