A 480-kg piano is being unloaded from a truck by rolling it down a ramp inclined at 23 °. There is negligible friction and the ramp is 14.0 m long. Two workers slow the rate at which the piano moves by pushing with a combined force of 1300 N parallel to the ramp. Part A If the piano starts from rest, how fast is it moving at the bottom? Express your answer using two significant figures. ΑΣΦ Ć ?

Q: 2. A 0.85kg block on a spring is oscillating with an amplitude of A = 0.42m and a frequency of f =…

A: The mass of the block is 0.85 kg. The amplitude of the oscillation is 0.42 m. The frequency of the…

Q: A car is moving with speed 16.2 m/s due south at one moment and 26.1 m/s due east 8.00 s later. Part…

A: The speed of the car is 16.2 m/s at one moment due to south. After 8 s the speed of the car becomes…

Q: Four emergency vehicles (AD) are driving near you, each with a siren emits sound at the same…

A:

Q: I once met a capacitor named Johio. One day when Johio was fully-charged, I determined that its…

A:

Q: net electric field

A: Given: Charges as q1=+31 μC at -0.400 m, 0 q2=-52 μC at -0.100 m, 0 q3=+10 μC at origin 0, 0 q4=-70…

Q: . The rod below with the cross section surface area of 0.12 m² is laterally insulated. The rod has a…

A:

Q: - magnetic field due to this current at a point P at

A: Given: Current flowing through wire is I=1.5 A Distance between wire and point P is 20 cm Find:…

Q: On planet #5, a stone dropped from a height of 42.2 m above the ground will hit the ground at a…

A:

Q: directed horizontally to the left. The blocks have a combined mass of 12.0 kg. What are the…

A: Under applying same force from any side will give same magnitude of acceleration. Let, m1, m2 are…

Q: A sample of radium has a weight of 1.5 mg and a half-life of approximately 6 years. а. How much…

A:

Q: A student obtains the following data in a calorimetry experiment designed to measure the specific…

A: It is given that, the mass of the calorimeter is, mc=0.04 kg, the mass of the water is mw=0.402 kg,…

Q: An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be…

A:

Q: The Bohr model for the hydrogen atom states that a single electron can exist only in the orbits…

A: as we know, potential energy is equal to, -k×e2r here, k=9×109e=1.6 x 10-19 J now,…

Q: How would I do a mindmap for the problem? How many calories would be needed to heat 1.65 kg of iron…

A: According to the question data m=1.65kg T1=12°C T2=25°C C=0.106cal/g°C We need to find Heat energy…

Q: How would I round it for scientific notation?

A:

Q: Two objects attract each other with a gravitational force of magnitude 9.00 x 10 N when separated by…

A:

Q: Driving down the road at a speed of 30.1 m/s, you suddenly notice a fallen tree blocking the road a…

A: Given in question -  Speed(v) = 30.1 m/s Distance(D) = 78.5m Distance before tree(d) = 7.1 m To find…

Q: From approximately what floor of a building must a car be dropped from an at rest position so that…

A: Given: Final speed of object when it hits the ground is v=80.7 ft/s Height of one floor is 12 ft…

Q: How many cubic centimeter are in the box that measures 2.20 in by 4in by 6in?

A: dimensions of a box = 2.2 in , 4 in , 6 in To find : the volume of box in cubic centimeter

Q: What is the acceleration rate of a 39.62 kg box sliding down an incline with a force of 197.07 N?

A: Given the mass of the box m=39.62kg  Force by which it is sliding F=197.07N  and we know that Force…

Q: 8) Consider a 0.676-m long tube, open at both ends. a) What is the fundamental resonance frequency,…

A: The fundamental frequency is calculated using the formula f1 = v/(2L). where v is the speed of the…

Q: BC ĎE + The distance r in Coulomb's equation represents the distance between... Hint: Coulomb's law…

A: Given,  Charges with different positions.  We need to dicuss,  Distance r in Coulomb equation =?

Q: 1. Identify two ways you can change the amount of electrostatic force that the charges experience.

A: Let's assume two point charges q1 and q2 are separated by some distance r. Then the electrostatic…

Q: A 4.5 μC point charge is placed in an external uniform electric field that has a magnitude of 64000…

A: Given, A 4.5 μC point charge is placed in an external uniform electric field that has a magnitude of…

Q: 37.0⁰ Femur T Quadriceps tendon Tibia Patella T 80.00 0 F Patellar tendon

A: The tension in each tendon is 1265 N. The tension makes an angle with the horizontal axis is for…

Q: total force exerted on this charge by the other two charges.

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Determine the charge density of a sphere of radius 25 cm with a total charge of 1100nC uniformly…

A:

Q: 60V 4. Determine the unknown RESISTANCE in the circuit below. 6802 Te 1.Ok 30mA R5 mis 270-2 R4 v R₂…

A:

Q: Water leaves a fireman’s hose (held near the ground) with an initial velocity v0 = 18 m/s at an…

A: According to the given data Initial velocity =vo inclined angle=θ We need to find (a) Maximum time…

Q: 8) Consider two vectors A and B where: A = -6.00 i +3.00j +3.00 k B= 6.00 -8.00j + 4.00 k If we want…

A: a) Calculate the dot product of the vectors.…

Q: 1. Two positively charged spheres are separated by a distance of 7.3 cm, as shown in the diagram.…

A:

Q: A ball has 500 J of GPE at 5m above the ground. What is the MASS?

A:

Q: Four capacitors are connected as shown in the figure below. (Let C = 10.0 μF.) 3.00 μF Hh. 6.00 μF…

A:

Q: Shown in a video, a small amount of water was placed into a can on a hot plate. After time, it was…

A: In this experiment, a can (metal) containing little water is heated and then it is quickly placed in…

Q: An electron moves along the trajectory of (Figure 1) from i to f. Figure i. + + f Part A Does the…

A: A) Write the expression for the electric potential energy. U=−kq1q2rU∝r−1 Here, k is Coulomb's law…

Q: A UAB hospital ambulance of mass 1,943 kg is parked at rest on a road that that has an incline of…

A:

Q: resolve correctly

A: Given: Current in the 4 ohm resistor is I = 0.2 A. Required: Potential drop across the 4 ohm…

Q: The square plates of a 172.9 pF parallel-plate capacitor measure 30.5 mm on a side and are separated…

A: Capacitance (C) = 172.9 pF length of each side of square plate (s) = 30.5 mm = 0.0305 m thickness of…

Q: Graph Plot the relation between 1/u  (on x axis) and 1/v ( on y axis) in sperate squares paper…

A: The given values of 1/u and 1/v are: 1/u 1/v 25 8.33 20 13.33 16.67 16.67 14.28 19.04…

Q: A baseball is popped straight up with a speed of 30m / s . How far does it fall in the sixth second…

A:

Q: A ball is thrown horizontally from the roof of a building 8.8 m tall and lands 9.8 m from the base.…

A:

Q: Figure out the acceleration due to gravity ( g ) on various hypothetical alien planets. On Planet…

A: Given Height of the stone above the ground is h=50.6 m Time taken by the stone to reach the ground…

Q: The human ear can detect a minimum intensity of Io = 10^-12 W/m², which has a sound intensity of 0…

A: Given:- The human ear can detect a minimum intensity of I0= 10-12 W/m2 Find:-   If the student hears…

Q: straight horizontal rope is towing a 7.10 kg toboggan across frictionless ice. A 3.55 kg radio is on…

A:

Q: A projectile is launched with an initial speed of 45.0 m/s at an angle of 33.0° above the…

A:

Q: Two charges separated by a distance of 1 m exert a 20-N force on each other. If the charges are…

A: According to the given data F1=20N r1=1m Q1 and Q2 are the charges We need to find Electric force if…

Q: A proton is released from rest at the origin in a uniform electric field in the positive x direction…

A:

Q: How much work is done (in J) when a weight lifter lifts 190 kg from 1.5 m to 2.0 m above the ground?…

A: Given data: Mass, m=m=190 kg Initial height, h1=1.5 m Final height, h2=2 m Acceleration due to…

Q: need help with finding the magnitude and direction of the graph attached. For part a I've tried 2…

A: Here we will resolve each force say F1 ,F2 and F3 into rectangular ( x and y components) and than…

Q: 5. In time for the SuperBowl! Estimate the deflection of a 20-yard pass caused by the Coriolis…

A: The Coriolis effect is a phenomenon that results from the Earth's rotation, and it affects the…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: