March 18 had a high temperature of 42°F and a low of 20°F. How many degree days were there?

Q: Determine the magnitude of the forces acting in the wire P and the strut Q. 1.5 m 2.0 m 100N

A:

Q: A conductor of uniform radius 1.20 cm carries a current of 2.60 A produced by an electric field 116 ...

A: we know current density J =I/A where I is amount of current flowing =2.60 A A = area of cross sectio...

Q: A sailboat with a mass of 2.1 x 10^3 kg experiences an ocean current force of 3.45 x 10^3 directed t...

A: Step 1 mass of sailboat (m) = 2000 kg  tidal force = 3000 N along east  force exerted by wind = 600...

Q: Q1: A wire warped around the following ring with 100 turns. the diameter of ring is 10 cm.the curren...

A:

Q: A dentist uses a curved mirror to view the back side of teeth on the upper jaw. Suppose she wants an...

A:

Q: Starting from rest, a 5.70-kg block (a) Determine the work dom (b) Determine the work dor (c) Determ...

A: fig.1      

Q: The sound passes from one medium to .4 another its propagation . is *. different

A:

Q: The attractive force between the.6 * molecules of the liquid is called • Adhesion • Aneurism • Cohes...

A: As we know, The force between molecules of same material is called cohesive force or that attractive...

Q: A medium size power station is used to produce 30 MW net power for a refinery. The station uses stea...

A: List of the four processes in generic carnot cycle as follow: Isothermal expansion Adiabatic expans...

Q: Question 1 A fly ball is hit to the outfield during a baseball game. Let's neglect the effects of ai...

A:

Q: Consider the system of particles that are connected by rigid rods of negligible mass. If the system ...

A:

Q: ic equatio ns for con s tant acce

A: We know that the let object is moving with the initial velocity u and in a time t by the uniform acc...

Q: Two small charged spheres are placed in vacuum on the x-axis: q1 = +2.80 µC at x = 0 and q2 = -7.82 ...

A:

Q: The car weighs 1720 lbs and drives up the hill at a constant speed. Assuming the static friction coe...

A:

Q: What net force is needed to accelerate a 10-kg mass at the rate of 40 m/s2 (neglect all friction): (...

A: Given data: The mass of the object is m=10 kg. The acceleration of the mass is a=40 m/s2.

Q: Current Attempt in Progress The system in the figure is in equilibrium. A concrete block of mass 301...

A:

Q: The figure below shows two tiny charged spheres 91 = -4.45 µC and q2 = 7.86 µC separated by 42.50 cm...

A:

Q: Consider the system of particles that are connected by nigid rods of negligible mass. If the system ...

A:

Q: To how many atmosphere pressure must a liter of gas measured at 1.00 atm and 20.0 oC be subjected to...

A:

Q: The motion of a particle is defined by the relation x =-6t- 36t - 40, where r and t are expressed in...

A:

Q: 1. A point charge q, is held stationary at the origin. A second charge q, is placed at point a, and ...

A: Conservative force  The force by which work done does not depends upon path is called conservative f...

Q: Two charges repel each other with a force of 1.0 EXP-6 N when they are 10.0 cm apart. When they are ...

A: Given : case 1 -   F = 1× 10-⁶ N, r = 10 cm = 10×10-²m  case 2 -  r = 2 cm = 2×10-² m , F =?

Q: How strong is the magnetic field inside a solenoid with 8400 turns pe that carries 25.0 A? 5.625x10^...

A: Given N=8400 turns I=25.0 A

Q: In the figure, block 1 has mass m - 480 g, block 2 has mass m2 - 510 g, and the pulley is on a frict...

A:

Q: Balls A and B having the same mass of 2 kg experience a direct central impact. Prior to the impact, ...

A: Given: mA = mB=2 kguA = 4 m/s  (right)uB=0m/simpact (collision)  : pefectly elastic

Q: The figure below shows a proton, p, and an electron, e, and points S and R on an x-axis. A. At whic...

A:

Q: A transformer has an efficiency of 80%. It works at 4 kW and 100 V. If the secondary voltage is 240 ...

A:

Q: Calculate the energy released when 1000 small water drops each of the radius 10-m coalesce to form o...

A: Here, we calculate the given as follow;

Q: Hardy, an avid TikToker, decided to look at his wristwatch to tell his friend dolphins the current t...

A: Given:Length of hour hand, h = 6.20 cmlength of minute hand, m = 9.50 cmAssumption: hour hand moves ...

Q: Two crates, A and B, sit side by side on a frictionless horizontal surface. The crates have masses M...

A:

Q: A canon is fired straight up starting from the ground with a velocity of 25m/s. It then reaches its ...

A:

Q: A transformer has an efficiency of 80%. It works at 4 kW and 100 V. If the secondary voltage is 240 ...

A:

Q: Question 2 The Wheel of Fortune is divided into twelve angular sections, each of which is 30 degrees...

A:

Q: 2. A see-saw consists of a uniform beam of length L and mass M pivoted in the center. Two children (...

A: Moment of inertia = mr2  Moment of inertia of uniform rod about center of mass = (1/12) ML2 

Q: 3. A block of mass m = 5.9 kg is pulled up a 0 = 21° incline as in the figure below with a force of ...

A:

Q: 3. Three capacitors of 20,10, and 15 uF respectively are connected in series across a 100V supply. F...

A:

Q: An 8.0-g bullet is shot into a 4.0-kg block that is at rest on a frictionless horizontal surface, as...

A: Given data: Mass for bullet m = 8.0 g Mass for block M = 4.0 kg Compression distance d = 3.7 cm Spri...

Q: . A tube of length L is filled completely with an incompressible liquid of mass M and closed at both...

A:

Q: A chair of mass 12.0 kg is sitting on the horizontal floor which is not frictionless. You push on th...

A:

Q: You need to use a 23- cm -focal-length lens to produce an inverted image one third the height of an ...

A:

Q: 1. A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a total distance...

A:

Q: oscillation is the quasi-period. The quasi-period of a mass undergoing damped free vibrations is the...

A: (a) FALSE In case of critically damped oscillations, the system returns to equilibrium as soon as po...

Q: A child playing in the pool is using a cylindrical can as a boat for his toy soldiers. The can weigh...

A:

Q: The Wheel of Fortune is divided into twelve angular sections, each of which is 30 degrees. Determine...

A:

Q: 1. A car is travelling from an initial velocity of 7 m/s If the car is accelerating at 5 m/s2. how m...

A: According to Bartleby policy we can only solve the first question at a time. Kindly post rest of the...

Q: The density of two liquids (A and B) is given as 1000 kg/m3 and 600 kg/m3, respectively. The two liq...

A: Express the mass of liquid A. MA=ρAVA  -----1 Here, MA is the mass, ρA is the density and MA is the ...

Q: A child pulls a shed upon snow covered hill. The child dose 480 J of work on the shed . If child wal...

A: Given data :                     Distance covered  =  d                       Work done  =  w       ...

Q: You throw a ball straight up from a roof of a building. The ball leaves your hand at a point even wi...

A:

Q: Which property gives an object potential energy?  a.Its age   b.Its position   c.Its shape

A: Potential energy is the energy of an object due to its position with respect to the some reference p...

Q: A cast .18 moing stotaight sioad at 7 m/s. I7 ix accelesnated ot 8 m/s Whet will be its velocity atl...

A: Given  Initial velocity u=7m/s Acceleration a=8m/s2 Time t=6s