An Alaskan dog sled racer pulls his 75.0 kg sled at an angle of 40.0 degrees to the ground. He manages to move the sled 20.0 m by applying a 150 N force before needing a break. Find the (a) work done by gravity, (b) work done by the normal force, (c) work done by the sled racer, and (d) the net work done on the sled.

Q: Activity # 1) below, the action-reaction pair is shown by the arrows (vectors), and the action-react...

A:

Q: As Halley’s comet orbits the Sun, its distance from the Sun changes dramatically, from 8.8×10^10 m t...

A: Given: Radius at closest approach rc=8.8×1010m, Speed at closest approach vc=5.4×104m/s, Radius at f...

Q: A particle is moving such that s =t3-6t2+18t + 9, where s is in metres andt is in seconds. The minim...

A: The particle is moving such that: s = t3 - 6t2 + 18t + 9   To find the minimum velocity attained by ...

Q: 0.5 →Y 0.67

A: here, 0.5=1/2 and 0.67 = 2/3

Q: A body of mass M at rest explodes intò three two of which of mass M/4 each are thrown off in -1 and ...

A: Here, we calculate the given as follow;

Q: A roller coaster starts from rest at point A. The mass of the cart with riders is 900 kg. The motor ...

A: We know that the potential energy is given as  P.E = mgh  where m is the mass.  g is the acceleratio...

Q: A mass of 3 kg descending vertically downwards supports a mass of 2 kg by means of a light string pa...

A:

Q: What is the relationship between the distance of charges and the electromagnetic force?

A: Electromagnetic force : The electromagnetic forces refer to a kind of physical interaction which tak...

Q: Calculate the current if the resistance is 3.00 and the voltage is 11 V. O 11A 0.27 A 33 A

A: Given Resistance of wire is R=3.0 ohm Voltage is V=11 V

Q: Imagine a parallel square-plate capacitor in vacuum being charged by a battery. The battery was remo...

A:

Q: The figure shows an 7.7 kg stone at rest on a spring. The spring is compressed 10 cm by the stone. (...

A:

Q: 1. A circular loop of radius 'R' carries a current '. At what distance 'y' along the axis of the loo...

A: Given: The current is I The radius of the loop is R. The magnetic field is one-half of the magnetic ...

Q: A ball falls from rest with an acceleration g. The uncertainty in the value of time is ±6% and the u...

A: According to second equation of motion , we have  s = ut + 1/2 * a t2   s is distance  u is initial...

Q: How much energy (in J) is required to evaporate 25% of 4g of water currently at 100 oC? The answe...

A: 25% of 4 g water means 0.25*4 g=1 g=0.001 kg of water The latent heat of vaporization of water is 22...

Q: How is Gauss’ Law related to Coulomb’s Law?

A: The answer is below

Q: Does the magnitude of your acceleration have to be greater than 9.8m/s² to leave the ground? explain...

A: Let mass of person is m and acceleration due to gravity is g.  Let force applied by person is F. Whe...

Q: . Cart A of mass 0.75 kg moves to the right at a speed of 5 m/s. Cart B of mass 1.5 kg is at rest. T...

A:

Q: d) What is the total time of the rocket in air? e) What is the average speed of the rocket for the e...

A:

Q: Two progressive waves y1=Asin(2πλx−ωt)y1=Asin⁡(2πλx−ωt) and y2=Asin(2πλx−ωt−π2)y2=Asin⁡(2πλx−ωt−π2) ...

A:

Q: ENG 207A The sum of vectors D, E and F is a resultant with a magnitude of 24.80 cm pointing 21.34 de...

A:

Q: Two people are pushing horizontally on a crate of mass 100 kg. One person is pushing from the right ...

A:

Q: 1. What is the velocity of a motorcycle that is traveling 10 meters in 3.5 seconds? 2. A high school...

A:

Q: A conducting spherical shell of inner radius 4.00 cm and outer radius 5.00 cm is concentric with a 7...

A:

Q: A jet plane lands with a velocity of 100 m s and can accelerate at a maximum rate of −5m/s2 as it co...

A: given data,   jet plane lands with a velocity (initially), u = 100m/s retardation(negative accelerat...

Q: A cyclist cycles 50.0 km [N] and then 30.0 km [E]. The total time taken for the trip is 1.00 h. What...

A:

Q: Stewart, Justin 3- Energy/ 2 of 4I Activity 2 Task: Conservation of Energy Activity 2 of 5 Which sta...

A: Given The ball starts on the hill from the top and begins to roll downward with no initial energy an...

Q: A warehouse worker uses a forklift to raise a crate of pickles on a platform to a height 2.75 m abov...

A: The answer is below

Q: How will Carbon Dioxide help the Martian atmosphere?

A: In this question we have to explain how carbon dioxide helps the Martian Atmosphere. Please give pos...

Q: Changes rapidly with temperature Thermopiles C Thermocouple O Thermistor C

A: Thermocouple : It is a ideal to measuring the rapidly changing temperature device.

Q: An elevator cab that weighs 24.5 kN moves upward. What is the tension in the cable if the cab's spee...

A: GivenWieght of elevator cab, W=24.5 kN

Q: If a rigid body is subject to planar motion in the xy-plane, then the angular momentum about the rig...

A: For a rigid body, the angular momentum (L) is the product of the moment of inertia and the angular v...

Q: A box is moved using 200 N of force over a distance of 15 m. If the box is moved in 1.4 seconds, how...

A: GivenForce Applied on box, F=200 NOver a Distance, d=15 mTime taken,t=1.4 s 

Q: 22.8 • The three small spheres shown in Fig. E22.8 carry charges 91 = 4.00 nC, 92 = -7.80 nC, and q3...

A:

Q: Two charges q1 = +1.69 µC and q2 = +8.25 µC are separated by a distance of 18.50 cm. Point P is loca...

A: given data -                    q1 = +1.69 μC                    q2 = +8.25 μC                     r...

Q: 1. A 35-kg crate rests on a horizontal floor, and a 65-kg person is standing on the crate. Determine...

A:

Q: It is observed that the time for the ball to strike the ground at B is 2.5 s. Determine the speed (i...

A: GIVEN: initial height of projectile yo=1.2 mhorizontal range R = 50mtime of flight = 2.5 s WE HAVE T...

Q: The figure shows an 8.4 kg stone at rest on a spring. The spring is compressed 10 cm by the stone. (...

A:

Q: Oppositely charged parallel plates are separated by 4.85 mm. A potential difference of 600 V exists ...

A:

Q: Four resistors are connected to a battery with a terminal voltage of 12 V, as shown in the figure be...

A:

Q: If two balls are released simultaneously from the same height, which one will hit the floor first, t...

A: Consider first ball is dropped from zero initial velocity, u = 0 ms second ball have only horizontal...

Q: What is the name of the principle that affects the behavior of the air to allow flight? Who is the p...

A: In this question we have to answer the given questions related to fluid mechanics. Please give posit...

Q: spheres are placed in vacuum on the x-axis: q1 = +3.50 µC at x = 0 and q2 = -8.52 µC at x = 41.33 cm...

A: We know that the formula of the electrostatic force is given as  F= kq1q2r2 where q1 and q2 are the ...

Q: A particle moves along the x-axis according to the equation x = 2.00 + 3.00t − 1.00t^2, where x is i...

A:

Q: 2) Consider that two positively charged small spheres are pushed towards each other. Does the electr...

A:

Q: An elevator supported by a single cable descends a shaft at a constant speed. The only forces acting...

A:

Q: 5. Jupiter orbits the Sun with speed 2079 m/s at an average distance of 71 398 000 m from the Sun. I...

A: Given : Speed, V = 2079 m/s Distance, R= 71398000 m  Mass, M = 1.90 × 1027 Kg  Find : Angular moment...

Q: Problem 8 Part A A parallel-plate capacitor is formed from two 8.7 cm-diameter electrodes spaced 1.7...

A:

Q: Three charges, q1 = 14.65 nC, q2 = -15.80 nC, and q3 = -15.97 nC, are placed on three corners of a s...

A:

Q: 1.19 Ship A is 1O km due west of ship B. Ship A is heading directly north at a speed of 30 km/h, whi...

A:

Q: An initially stationary box of sand is to be pulled across a floor by means of a cable in which the ...

A: Here we have ,  Maximum tension force = 1020 N  Coefficient of friction ( μs ) = 0.370