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3 years ago

What is centripetal force that allows a car to move around a sharp curve in a roadway?

1 answer:

7 0

The centripetal force that allows a car to move around a sharp curve in a roadway is the frictional force between the tires of its wheels and the surface of the road.

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A remote-controlled car's wheel accelerates at 22.6 rad/s2 . If the wheel begins with an angular speed of 10.2 rad/s, what is th

Lapatulllka [165]

Answer:

70.9pi rad/s

Explanation:

angle turned through = 16

angular acceleration = 22.6 rad/s2

angular speed = 10.2 rad/s

time = ?

angular acceleration = angular speed/time

time = 10.2/22.6

time = 0.45 seconds

angular speed = angle turned through/time

angular speed = (16 × 2pi)/0.45

= 70.9pi rad/s

3 0

3 years ago

Which statements accurately describe trends found in the periodic table

ankoles [38]

Henry Moseley established a periodic table that arranges the elements by atomic number;The atomic number increases from left to right on the periodic table;Metalloids have the characteristics of both metals and nonmetals.

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3 years ago

Read 2 more answers

Why is Saitama so strong?

Helga [31]

Answer:

he performed 100 push-ups, 100 sit-ups, and 100 squats, and ran 10 kilometers each day for over a year.

Explanation:

crazy right

6 0

3 years ago

Read 2 more answers

A switch that connects a battery to a 30μf capacitor is closed. several seconds later you find that the capacitor plates are cha

Elanso [62]

You can find the emf of the battery by using:

Q = CV.

Q = Charge in capacitor plates = 30μC
C = Capacitance of the capacitor = 30μF

V = Q/C = 30/30 = 1V

Ans: The emf of the battery = 1V.

5 0

3 years ago

The frequency of the fundamental of the guitar string is 320 Hz. At what speed c do waves move along that string?

viktelen [127]

Complete question is The frequency of the fundamental of the guitar string is 320 Hz. At what speed c do waves move along that string? wavelength is 40 cm.

Answer:

128 m/s

Explanation:

In case where fundamental frequency is given, the speed with waves travel along the string can be calculated using the following formula:

v = f (2L) where L is the length of the string (L = λ/2)

⇒v= f λ

f = 320 Hz (given)

λ = 40 cm = 0.40 m

Substitute the values:

⇒ v = 320 Hz × 0.40 m= 128 m/s

7 0

3 years ago