All categories

3 years ago

A 20 kg bicycle carrying a 50 kg

Physics

1 answer:

Misha Larkins [42]3 years ago

7 0

Where's the question?

The weight of the bicycle will be 70kg which means that the bicycle has more friction to the ground.

You might be interested in

This is for my tennis Class<br> What differences did you find between racquest ball and tennis?

Maru [420]

Answer:

Tennis Rackets are Typically Bigger Than Racquetball Rackets. Tennis rackets can be up to 29 inches long, with most between 27-29 inches. Racquetball rackets cannot exceed 22 inches according to game rules. ... Having a larger racket in tennis gives you more surface area to return the ball with power and accuracy.

Explanation:

4 0

3 years ago

P7.36 A ship is 125 m long and has a wetted area of 3500 m2. Its propellers can deliver a maximum power of 1.1 MW to seawater at

Mariana [72]

The solution is in the attachment

4 0

3 years ago

Please explain why charcoal grills or charcoal fires should never be used for heating inside the house.

vova2212 [387]

Too much smoke and debris around the house?

6 0

4 years ago

The scientist who suggested that atoms contain a hard core containing most of the mass of an atom was:

stich3 [128]

The scientist who suggested that atoms contain a hard core containing most of the mass of an atom was Ernest Rutherford.

5 0

3 years ago

The common electrical wall receptacle voltage in North America is often referred to as 120 volts AC. One hundred twenty volts is

Vika [28.1K]

Answer:

120 volts is the root mean square (rms) average of the voltage as it varies with time.

Explanation:

A. The average voltage over many weeks of time (false)

Reason: Average AC voltage over one cycle is cycle (from one peak to other) is zero and so over many weeks of time it is zero.

B. The peak voltage from an AC wall receptacle (false)

Reason: The peak voltage of an AC source in North America is zero.

C. The arithmetic mean of the voltage as it varies with time (false)

Reason: Arithmetic mean AC voltage over one cycle is cycle (from one peak to other) is zero and so over many weeks of time it is zero.

D. One-half the peak voltage (false)

Peak voltage =170 Volts

One-half the peak voltage = 85 volts

E. The root mean square (rms) average of the voltage as it varies with time (True)

Reason:

The peak voltage and root mean square voltage are related by:

$V_{rms}=\frac{V_{p}}{\sqrt{2} }\\\\V_{rms}=\frac{170}\sqrt{2}V_{rms}\\\\V_{rms}=120 Volts$

Average value of voltage over one cycle is zero, so instead of calculating average voltage for AC peak voltage is first squared and the mean is calculated.

5 0

3 years ago