An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 424-g sample of silver at an initial temperature of 90°C is placed in the water. The stirrer is used to stir the mixture gently until it reaches its final equilibrium temperature of 32°C. Calculate the mass of the aluminum cup.

Q: 2. Samir drives 250 km [E] and then 300 km [W] in a total time of 5 hours.Show all of your work a) W...

A: Given value--- time taken = 5 h. We have to find--- average speed ? average velocity?

Q: 1. Four forces act on an object, given by A = 46.3 N east, B = 35.3 N north, C = 68.7 N west, D = 74...

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Q: A box of mass 11 kg is released at point A and slides to the bottom of a rough incline. The box then...

A:   given: m=11kg∆x=17.5cm = 0.175 mk=3500 N/mh=2.0mθ=30°

Q: Carmelo opened his front door and headed to school. He picked up speed as he left his front door and...

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Q: Suppose you rotate a 1000 turn, 19 cm diameter coil in the Earth’s 5.00 × 10-5 T magnetic field. Wh...

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Q: The motion of a particle from a fixed point is defined by the equation v = (3t-1)(t-1), where v is i...

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Q: R(t l) A in spherical shell made of plastic carries a unifermly distrituted negative charge de-10 co...

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Q: signals at polhts A, B and

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Q: point charge of 4μC is 3cm apart from the charge 1μC. Find the magnitude of the Coulomb force which ...

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Q: Ice cubes having a temperature of -15.0°C and mass 0.075 kgm are dropped in a glass of water at 0.0°...

A: Let an amount m of water freezes.  

Q: Part A A 8.8×10-4 V/m electric field creates a 4.9x1017 electrons/s current in a 1.8-mm-diameter alu...

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Q: A 1.5 kg mass is spun on a string in a horizontal circular path at a constant speed. a)Draw a free-b...

A: Given that:m=1.5 kgR=0.5 mT=0.25s

Q: A 50 kg student is travelling on a 187 kg raft to the right at 3.5 m/s. The student jumps off the ra...

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Q: The density of lead is 1.13 x 104 kg/m3 at 20.0°C. Find its density (in kg/m3) at 135°C. (Use a = 29...

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Q: b. A satellite disk with a radius 0.1 m is oriented with its normal unit vector n at an angle of 30°...

A: Answer:-  Given  Electric field (E) = 2.0 × 103 N/c  Angle (theta) = 30o  Radius (r) = 0.1 m  Area o...

Q: Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of ...

A: According to question we need to find both initial charge .

Q: TRUE OR FALSE: The density of water (about 1000 kg/m³) increases only 1 percent if the pressure is i...

A: Let ρ1 and P1 be the initial density and the initial pressure of water respectively. Since density v...

Q: Problem 2: An intergalactic spaceship arrives at a distant planet that rotates on its axis with a pe...

A: Let the mass of aircraft =m Mass of planner = M Time period = T =39 hour Redius of orbit =2.2×108 m

Q: 5. An elevator has mass of 600 kg, not including passengers The elevator is designed to ascend at co...

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Q: The forces in (Figure 1) act on a 1.8 kg object. What is the value of ax the x-component of the obj...

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Q: NASA scientists suggest using rotating cylindrical craft to recreate gravity while in a weightless e...

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Q: A stone is catapulted at timet 0, with an initial velocity of magnitude 20.6 m/s and at an angle of ...

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Q: An electron moves through a magnetic field and experiences a force of 5.3 x 10^-12 N at a velocity o...

A: Given: particle = electron q=e = 1.6*10-19 C F = 5.3*10-12 N v = 3.2*108 m/s   we have to find B

Q: A boat that can travel 4 km per hour in still water finds that it can row up stream in 7.5 hours at ...

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Q: A 250 g cart is travelling at 15 m/s to the right. It collides inelastically with another cart trave...

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Q: 1) Converting current (in amperes, A) to power (in watts, W) can be done using the following formula...

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Q: Your friend (mass 65.0 kg) is standing on the ice in the middle of a frozen pond. There is very litt...

A: given mass=65.0 kg initial velocity,u=0 final velocity,v=6.00m/s time t=3.00sec Acceleration can be ...

Q: Problem 4: A satellite is traveling around a planet in a circular orbit with radius R. It moves in a...

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Q: The pressure, volume and temperature of an ideal gas are related by the equation 8.31T P(T,V) = V Wh...

A: According to question we need to find change in pressure .

Q: Charging by Conduction , the process (?) How (?) Give a examples

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Q: 1. Find the Initial velocity for the following diagram (Answer: 21.2m/s) 50° 45 m |B

A: Given  Horizontal displacement is given as x=45 m Angle of inclination is θ=50°   Formula We know fo...

Q: View Policies Current Attempt in Progress In the figure, a slab of mass m, = 44 kg rests on a fricti...

A: Given data: The mass of slab is m1=44 kg. The mass of block is m2=10 kg. The applied force is F=101...

Q: Vectors A andB have magnitudes 4 and 2, respectively. The dot product A· B is 4. What is the magnitu...

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Q: What is the force of tension in a string that spins a 250 g object in a vertical circle with a radiu...

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Q: Three blocks are connected as shown in Figure 2 above. Block A has a mass of 1.12 kg and hangs from ...

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Q: A 112-kg astronaut is tethered to the International Space Station (ISS) and is 26 m from the center ...

A: Given Data   Mass of Astronaut MA = 112 Kg Distance  from Astronaut to ISS  R = 26 m  Gravitational ...

Q: Light travels

A: TRUE Sound waves can travel through any substance, including gases, liquids, and solids. As we know ...

Q: A solid insulating sphere of radius 0.07 m carries a total charge of 25 µC. Concentric with this sph...

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Q: Problem 5: A child of mass m = 23 kg slides down a slide of height h = 2.8 m without friction. Let g...

A: Given Information:- Mass of the child is m=23 kg Height of the slide is h=2.8 m   Required:- (a) Tot...

Q: What is the current in a circuit with a 2Ω resistor followed by a 3Ω resistor that are both in paral...

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Q: Two parallel plates are charged to a voltage of 50V. If the separation distance between plate is 0.0...

A: Given value--- Voltage = 50 V. distance between plate = 0.05 m. We have to find--- electric field...

Q: How would our lives be affected if Einstein's postulates were true but the speed of light were 100 k...

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Q: A certain lightbulb has a tungsten filament with a resistance of 22.4 N when at 20.0°C and 143 N whe...

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Q: 7. A balky cow is leaving the barn as you try harder and harder to push her back in. In coordinates ...

A: Initial position of cow = 0 m Final position of cow = 6.9 m F(x) =-[ 20 N + (3Nm x) ]  

Q: This problem also refers to the diagram before question 1. There is no friction between the cart and...

A: Givenmass of cart, M=14.7 kgMass of book, m=2.55 kgμs=0.49μk=0.25 Acceleration of cart, a=1.83 m/s2

Q: Part A Find the angle between each of the following pairs of vectors A = Agi + Ayj and B = Bại + Byj...

A: Given that:- Two vectors A and and B is given in the rectangular form.

Q: In the figure, a 5.30 kg block is sent sliding up a plane inclined at 0 = 37.0° while a horizontal f...

A: The forces along and normal to the incline can be resolved as shown  

Q: A weight of 50 N is supported by 2 ropes, one making an angle 60 degrees above the horizontal to the...

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Q: 5: A 5.0 kg block is being pulled to the right by a 75 N force. 75 N m = 5.0 kg 20° What is the norm...

A: Draw the free-body diagram of the block.

Q: 1.Merry's house is 55 km away from her cousin's house. How long will it take for Merry to go to her ...

A: Given :  Distance (d) = 55 km Speed (v) = 32 km/h Unknown: Time (t) 

Calorimetry

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