Start your trial now! First week only $4.99!*arrow_forward*

Question

If P = r cos t and r sin t − 2te^{r} = 0, find dP/dt

Tagged in

Science

Physics

Find answers to questions asked by students like you.

Q: please solve

A: The quantity which does not depend on direction is called as scalar quantity. The quantity which dep...

Q: What is the correct answer?

A: Given Data: The acceleration due to gravity is, g=4.9 m/s2 The radius of a planet is, r=2.5×106 m Th...

Q: A certain aircraft has a liftoff speed of 111 km/h. (a) What minimum constant acceleration does the ...

A: Given: Initial speed of aircraft u = 0 km/h = 0 m/s. Final speed of aircraft v = 111 km/h = 30.83 m/...

Q: Why did the temperature of the metal during the Calorimeter experiment change drastically, yet the w...

A: The specific heat capacity of a material is defined as the heat required by a body of mass 1 kg to r...

Q: [06] The fishing pole in the figure makes an angle of 20.0° with the horizontal. Determine (a) the m...

A: Given:- L = 2.0 m fishing pole makes 200 with horizontal. To determine:- the magnitude of vertical f...

Q: A Bell student “accidentally” drops a water balloon from the 3rd floor onto an unsuspecting middle s...

A: Given, Time of fall,t=1.2 s Initial velocity, u=0 m/s Acceleration due to gravity, a=g=9.8 m/s2

Q: Through questionable means, you have acquired 5.10 m³ of glycerin. In an attempt to sell it, you tra...

A: Given that Volume of the glycerin, V0=5.1 m3 Initial temperature, Ti=68.80 F =20.440C Final temperat...

Q: An electron (charge q = -e = -4.60 10-19 C, mass m = 9.41 10-31 kg) is moving along a circular path ...

A: (a) Assume that the electron is accelerated from rest. The magnitude of change in kinetic energy of ...

Q: A cube, 10 cm on a side, is tethered to the bottom of an aquarium. The aquarium is filled with heavy...

A: Given data *The side of the cube is a = 10 cm = 0.1 m *The given density is D = 1.5 g/cm3 = 1500 kg/...

Q: A solid conductor sphere (radius = 5.0cm) has a charge of 0.25 nC uniformly distributed on its surfa...

A: Click to see the answer

Q: 1. You throw a rock horizontally into the Grand Canyon at a velocity of 25 m/s. The canyon is 1.9km ...

A: NOTE- Since you have asked multiple questions, we will solve the first one for you. If you want any ...

Q: A car accelerates from a stop to 100km/h in 4 seconds. - what is its acceleration? - what if it wen...

A: Convert 100 km/h to m/s as, 100 km/h=27.778 m/s Apply the kinematics formula, v=u+at The final vel...

Q: In a football game, one player (a "tackle") running at a constant speed of 5 m/s tackles another pla...

A: Given quantities: mass of tackle (M) = 140 kg velocity of tackle before collision (u) = 5 m/s Veloci...

Q: Calculate the De-Broglie wavelength for, A biological virus of size d is 10 nm – 300 nm, mass m is...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: A mass m attaches to a spring and reaches its equilibrium point. Assume the mass m is pulleddownward...

A: Click to see the answer

Q: A certain car is capable of accelerating at a rate of 0.59 m/s2. How long does it take for this car ...

A: Rate of change of velocity is defined as acceleration. It is given as- a=final velocity-in...

Q: A 850-kg car slows to rest from a speed of 82.5 km/h in a distance of 105 m. Consider that the car i...

A: Given: The mass of the car is 850 kg. The initial speed is 82.5 km/h. The distance covered is 105 m.

Q: A boulder falls from a cliff. What is the boulder's acceleration during the fifth second of the fall...

A: 13. Acceleration

Q: A hot air balloon exerts a force of 1200N while lifting a load of 800 N. Whích free-body force diagr...

A: Free body diagram of load:

Q: At the end of a roller coaster ride, the cars must slow to a stop, but the magnitude of the accelera...

A: The magnitude of the maximum allowable force goes to completely stop the cars of the roller coaster ...

Q: Find the angle between the vectors A = −2i + j − 2k and B = 2i − 2j

A: Click to see the answer

Q: You pull a simple pendulum 0.240 m long to the side through an angle of 3.50O and release it. (a) Ho...

A: a) Analyze the following figure. Since the angle in consideration is very small, the small-angle ap...

Q: A speedboat moving at 32.5 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boa...

A: (a) Write the equation for the final position of a particle moving in one dimension under constant a...

Q: A vacuum spherical capacitor has inner and outer radius of 7 cm and 9 cm, respectively. What is the ...

A: Given: Outer radius (b) = 9 mm Inner radius (a) = 7 mm

Q: The slope of the solid-lquid coexistence curve in the water diagram is -135atm/K. At 1atm an 80kg ic...

A: Mass of ice skater (m)=80 kg Acceleration due to gravity (g)=9.8 m/s2 Contact area of the ice skater...

Q: answer Q 5

A: Given data The track radius is given as r = 7 m. From the concepts of trigonometry in the inside v...

Q: An energetic parent places his 20 kg child on a 5.0 kg cart to which a 2.0-m-long rope is attached. ...

A: Given data Mass of the child, m=20 kg Mass of the cart, ml=5 kg Length of the rope,r=2 m Tension, T=...

Q: A 3 kg object is moving to the right at a speed of 10ms10ms. The initial kinetic energy of the objec...

A: Scenario: An object is already set to motion with given velocity such that carrying kinetic energy K...

Q: i need help answering these two questions

A: Click to see the answer

Q: A ball dropped from rest is traveling 13.0m/s after 0.5s. (a) How far would this ball fall in 15s an...

A: Click to see the answer

Q: A parallel plate capacitor has Strontium Titanate (x = 233) completely filled between the gap. If th...

A: Click to see the answer

Q: What is the acceleration of the car described by the graph below? What is the distance travelled? Ve...

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,...

Q: Three forces acting on an object are given by F1 = (−1.6î + 6.55ĵ) N, F2 = (4.75î − 1.2ĵ) N, and F...

A: Given : F1 = (−1.6î + 6.55ĵ) N F2 = (4.75î − 1.2ĵ) N F3 = (−44.5î) N Acceleration (a) = 3.90 m/s2

Q: When the temperature is 130 degree C, the resistance of a resistor is 45 ohms. When the temperature ...

A: Write the formula for the coefficient of resistivity of a given resistor. α=R-R0R01T-T0 The resistan...

Q: How is it technically correct to say that a car making a u-turn can have a constant speed but cannot...

A: Let us first define both physical quantities: Speed: It is defined as distance covered by an object ...

Q: Three identical point charges (+2.0 nC) are placed at the corners of an equilateral triangle with 2....

A: The electric potential at either side of the triangle is, V=kq1r1+kq2r2+kq2r2=kqr/2+kqr/2+kq3/4r=kq1...

Q: 1. What is the acceleration of the car described by the graph below? What is the distance travelled?...

A: Acceleration can be calculated by measuring the slope of Velocity time graph , because acceleration ...

Q: A compact car has a maximum acceleration of 2.6. When it carries only the driver and has a total mas...

A: Given: The initial total mass of the car is 1345 kg. The final total mass of the car is 1745 kg. The...

Q: A hypnotist's watch hanging from a chain swings back and forth every 0.71 s. What is the frequency (...

A: Click to see the answer

Q: If the Magellan spacecraft transmitted radio signals down through the clouds on Venus and heard an e...

A: Solution: Given that t = 0.000192 seconds v = 3x108 m/s

Q: A motorcycle is moving at 24 m/s. If the motorcycle is 350kg, what is its kinetic energy?

A: The kinetic energy of the motorcycle is, KE=12mv2