A lift sheave has a radius of 0.75 m. At what angular velocity must it be rotated if it is to raise the lift car at a vertical velocity of 1.8 m/s?

Q: What is the weight of and wokat skould be size of a Aluminum cube with the same mass? Densitg of,…

A: The dimension of the gold bar is 10cm×20cm×5cm So the volume of the bar is V= 10×20×5×10^-6 m^3  V=…

Q: A particle with mass 2.59 kg oscillates horizontally at the end of a horizontal spring. A student…

A: The total energy of a spring block oscillator executing simple harmonic motion as E =12kx2+12mv2…

Q: a) negative; negative b) negative; positive c) positive; positive

A:

Q: A microwave oven has a power requirement of 1,251 W. A frozen dinner requires 6.8 min to heat on…

A: (a) Energy used in kWh

Q: Values are below do the calculations

A: The initial mass is m1 = 1219.73 gThe final mass is m2 = 908.631 gThe mass of the water evaporated…

Q: A heated piston measures 8.65 cm in diameter. When heated it expands 0.024 cm. What is the diameter…

A: Given,

Q: How many electrons were transferred if the total charge of a process is 938.3 C?

A:

Q: The illumination of an object by a light source is directly proportional to the strength of the…

A: Solution:Given:P1 = power of weak sourceP2 = power of strong source = 2 x P1d = distance between…

Q: If your car averages 22.07 miles per gallon, how many miles would you expect to drive on 13.243…

A: Car average of X miles per gallon means that in 1 gallon gas the car will go to X miles. So the…

Q: It has been said; "Give me a long enough lever and I shall move the world." How long does this lever…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: a scale A 60-kg person stands on a weight scale that is placed inside an elevator that is…

A: As stated in the question the mass of the man is 60kg. But it seems the reading on the scale is what…

Q: If you car averages 22.07 miles per gallon, how many miles would you expect to drive on 13.243…

A: Given value--- car averages 22.07 miles per gallon We have to find--- how many miles would you…

Q: Two masses are being pulled up a 30.0 degree incline by a force F parallel to the incline. The…

A:

Q: How much efficiency would a solar panel of surface area A = 2 m² need to have to generate 1.7 kWh of…

A: Efficiency = output/input

Q: A suspicious-looking man runs as fast as he can along a moving sidewalk from one end to the other,…

A: Time taken when man runs along side walk,time taken when he runs back ,

Q: 3 μF

A: Given values:- The capacitance of the first capacitor,(C1)=3 μF=3 x 10-6 F ----(1) The capacitance…

Q: 9. The original 1955 Ford Thunderbird was powered by a 292-in³ engine. What is this volume in…

A: The volume of engine is V =292 in3 Now, 1 in = 0.0254 m So, V= 292×(0.0254)3 m3         = 4.785×10-3…

Q: 10Ω 20 Ω 4ν 3ν 2A Β 15Ω 25Ω Ε 6V

A: E= 135 Volt

Q: In a beehive, each cell is a regular hexagonal prism, open at one end with a trihedral angle at the…

A:

Q: e, which is the unit of:

A: Given: The unit is given below:

Q: an airplane travels at 951 km/h. How long does it take to travel 1.00 k?

A:

Q: A hot water heater in a residential home runs for an average of 3.2 hours per day with a heat energy…

A: Given data: Average usage of water heater = 3.2 hours/day Power (P) = 3.8 kW Cost of electricity =…

Q: Car A is traveling at the constant speed of 64 km/h as it rounds the circular curve of 360-m radius…

A: Given: Car A travelling with the speed vA =64 km/h Radius of circular curve is r=360 m Position…

Q: Explain why you think a sign on a copy machine reading ”.05¢a copy” is put up by mistake.

A: We know that 1 dollar comprises of 100 cents. This is written as 1$=100 cents. Thus 1 cent =0.01$.

Q: A person consumes about 2300 Cal a day. 1 Cal = 4186 J and 1 kWh= 860 Cal.If a power company charges…

A: person consumes = 2300 cal in one day 1 kwh = 860 cal  cost of 1 kwh energy = 12 ¢ means cost of 860…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: According to question we need to simplify given quantities with correct number of significant digits…

Q: 1.9 & Multiplying a vector by a scalar. (Section 2.7) Complete the figure to the right by drawing…

A:

Q: A balloon has a volume of 0.3 m3 at room temperature (22 C) and is then placed in a freezer. What…

A: Answer: Given Values,

Q: The temperature t state A is 20.0°C, that is 293 K. During the last homework, you have found the…

A: f=3 (monoataomic gas)

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.