1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gennadij [26K]
3 years ago
11

The length of a bicycle pedal arm is 0.152 m, and a downward force of 118 N is applied to the pedal by the rider's foot. What is

the magnitude of the torque about the pedal arm's pivot point when the arm makes the following angles with the vertical? (a) 30°
Physics
1 answer:
Veseljchak [2.6K]3 years ago
5 0

Answer:8.968 N-m

Explanation:

Given

Length of arm=0.152 m

Downward force=118 N

angle made by arm with vertical=30^{\circ}

Force can be divided into two components

It's sin component will contribute towards torque while cos component will not contibute

Torque =Fsin30\times L

T=118\times sin30\times 0.152

T=8.968 N-m

You might be interested in
An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad / s). if a particular disk is spun at 79
NeX [460]
(i) |α| = 235.6rad.s / 0.502s = 469 rad/s²
(ii) tang a = α*r = 469rad/s² * 0.12m / 2*11 = 2.56 m/s²
4 0
3 years ago
If an electrical component with a resistance of 53 Q is connected to a 128-V source, how much current flows through the componen
natta225 [31]

Answer:

the current that flows through the component is 2.42 A

Explanation:

Given;

resistance of the electrical component, r = 53 Ω

the voltage of the source, V = 128 V

The current that flows through the component is calculated using Ohm's Law as demonstrated below;

V = IR\\\\I = \frac{V}{R} = \frac{128 \ V}{53 \ ohms} = 2.42 \ A

Therefore, the current that flows through the component is 2.42 A

8 0
3 years ago
A car is traveling south at a speed of 52 miles per hour and then begins traveling at a speed of 53 miles per hour but continues
gregori [183]
It has to be velocity
7 0
3 years ago
Read 2 more answers
A small spinning asteroid is in a circular orbit around a star, much like the earth's motion around our sun. The asteroid has a
Fudgin [204]

Answer:

Temperature will be 305 K  

Explanation:

We have given The asteroid has a surface area A=7.70m^2

Power absorbed P = 3800 watt

Boltzmann constant \sigma =5.67\times 10^{-8}Wm/K^4

According to Boltzmann rule power radiated is given by

P=\sigma AT^4

3800=5.67\times 10^{-8}\times 7.70\times T^4

T^4=87.0381\times 10^8

T=305K

So temperature will be 305 K  

8 0
4 years ago
Please help. No links please answers will give brainliest
insens350 [35]

Answer: 1 inclined plane  and box mover trolley

2 screw and drill

3 The axle, or rod and wheels

4 slides, ramps, and hills.

5 yes because they help the ball move quicker

6 i am not sure about this one)

Explanation:i do not know i am guessing

5 0
3 years ago
Read 2 more answers
Other questions:
  • A 65 kilogram astronaut weighs 638 newtons at the surface of earth what is the mass of the astronaut at the surface of the moon,
    12·2 answers
  • How much force is required to keep the object moving with the same speed and on the same direction
    11·1 answer
  • a ship leaves a port P and travels 30 km due north . then it changes course and travels 20 km in a direction 30° east of north t
    5·1 answer
  • Which of the following would decreasethe resistance to the flow of an electric current through a body? 
    5·2 answers
  • What type of spectrum is emitted by a low-density luminous cloud of hot gases?
    13·1 answer
  • A horizontal rod 0.250 m long is mounted on a balance and carries a current. At the location of the rod a uniform horizontal mag
    15·1 answer
  • The first active volcano observed outside the Earth was discovered in 1979 on Io, one of the moons of Jupiter. The volcano was o
    7·1 answer
  • B
    7·1 answer
  • When do things move faster? Day or night?​
    8·2 answers
  • a 0.60 kg ball is moving horizontally with a speed of 5.7 m/s when it strikes a vertical wall. the ball rebounds with a speed of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!