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
Nana76 [90]
3 years ago
10

A 900-N lawn roller is to be pulled over a 5-cm (high) curb. Radius of roller is 25 cm. What minimum pulling force is needed if

angle made by handle is (a) 0 deg (b) 30 degrees?
Physics
1 answer:
Feliz [49]3 years ago
8 0
I believe b 30 degrees 
You might be interested in
Beyond what point must an object be squeezed for it to be a black hole? A : Schwarzschild Radius. B : Crackpoint. C : Event Hori
7nadin3 [17]

Answer:

A:Schwarzschild radius

8 0
2 years ago
Read 2 more answers
Why should you never use the coarse adjustment on high power
umka21 [38]

Answer:

First, the image moves in and out of focus too quickly, so that it is difficult to precisely adjust the focus. Second, you run the risk of crashing the objective into the slide. Use the coarse focus only with the 4x low power objective. You can use the fine focus knob with all objectives.

Explanation:

3 0
3 years ago
In a given circuit, the supplied voltage is 1.5 volts. One resistor is 3 ohms and the other is 2 ohms. Use Ohm's law to determin
ozzi

You haven't said whether the two resistors are connected
in series or in parallel.  It makes a difference.

--  If they are in series, then their combined effective resistance is

                 (3 + 2) = 5 ohms.

Current in the circuit is    (voltage)/(resistance) = 1.5/5 = 0.3 Amp.


--  If they are in parallel, then their combined effective resistance is

               (3 x 2) / (3 + 2) = (6/5) = 1.2 ohms.

Current in the circuit is  (voltage)/(resistance) =  1.5/1.2 = 1.25 Amp.
 
5 0
2 years ago
Read 2 more answers
A number is written in scientific notation when it is the product of a number less than 10 but greater than or equal to 1 and a
Bess [88]

Answer:

Mass = 1.99 * 10^{30} kg

Explanation:

Given

Mass = 1,990,000,000,000,000,000,000,000,000,000\ kg

Required

Rewrite using scientific notation

The format of a number in scientific notation is

Digit = a * 10^n

Where 1 \geq\ a\geq\ 10

So the given parameter can be rewritten as

Mass = 1.99 * 1,000,000,000,000,000,000,000,000,000,000\ kg

Express as a power of 10

Mass = 1.99 * 10^{30} kg

Hence, the equivalent of the mass of the sun in scientific notation is:

Mass = 1.99 * 10^{30} kg

7 0
3 years ago
How can a person detect infrared rays without an instrument?
natita [175]
So we want to know how can we detect infrared rays without an instrument. Infrared rays or heat, are a part of electromagnetic spectrum. We have specialized nerve cells in our skin called thermoreceptors that can detect differences in temperature that are produced by infrared part of EM spectrum.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Se aplica una fuerza de 2.294N a una masa de 408 kg. ¿Cuál es la aceleración de la masa?
    12·1 answer
  • Rex Things throws his mother's crystal vase upwards with an initial velocity of 26 m/s. Determine the time it would take for the
    10·1 answer
  • What is photosynthesis ​
    15·2 answers
  • In a physics laboratory experiment, a coil with 250 turns enclosing an area of 11.6 cm2 is rotated during the time interval 3.90
    6·2 answers
  • What is the definition of gravitation potential energy?
    6·1 answer
  • A educação física, enquanto componente curricular da educação básica. Qual a tarefa que educação física?? Alguem me ajuda por fv
    10·1 answer
  • A train starts from rest and accelerates uniformly until it has traveled 5.6 km and acquired a forward velocity of The train the
    5·1 answer
  • A teacher took two latex balloons and blew them up with helium gas to the same size. She took one and labeled it Balloon A and p
    6·1 answer
  • A rubber bullet of mass m is fired from a rifle into a stationary block of 25 m. The bullet remains in the block and both the bu
    8·1 answer
  • Select the correct answer from each drop-down menu.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!