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
Basile [38]
3 years ago
11

a weightlifter raises a 200-kg barbell with an acceleration of 3 m/s squared. how much force does the weightlifter use to raise

the barbell
Physics
1 answer:
Soloha48 [4]3 years ago
8 0
It would be 600 because mass • acceleration
You might be interested in
Arwan finds a piece of quartz while hiking in the mountains. When he returns to school, he takes it to his science teacher. She
bekas [8.4K]

it's 303.4 cm3. i just took the test

8 0
3 years ago
Read 2 more answers
there is a fish called an archer fish that shoots drops of water at insects resting on branches above the water. If the Archer f
Mariulka [41]

Answer:

=3.5 m/s

Explanation:

y = x tanθ - 1/2 g x² / (u²cos²θ )

y = 0.25 , x = 0.5, θ = 40°

.25 = .50 tan40 - .5 x 9.8x x²/ u²cos²40

.25 = .42 - 2.0875/u²

u = 3.5 m / s.

4 0
3 years ago
Estimate the total number of bacteria and other prokaryotes in the biosphere of the earth. (assume the bacteria are found to a d
Fofino [41]
Since the Earth is almost spherical in shape, we are actually to find first the volume of the spherical segment at a depth of 1,000 m. The radius of the Earth is 6,371,000 meters. The volume of a spherical segment is:

V = 1/3*πh²(3r - h)
Substituting the values and making sure the units is in mm,
V = 1/3*π(1000 m * 1000 mm/1 m)²[3(6,371,000 m * 1000 mm/1 m) - (1000 m * 1000 mm/1 m)]
V = 2×10²² mm³

Thus, the total amount of bacteria is:

2×10²² mm³ * 100 bacteria/1 mm³ = 2×10²⁴ bacteria
7 0
3 years ago
A school bus takes 0.690 h to reach the school from your house. If the average velocity of the bus is 18.7 km/h to the East, wha
Dennis_Churaev [7]

The displacement is 12.903 km east.

4 0
3 years ago
Guillaume puts a bottle of soft drink in a refrigerator and leaves it there until its temperature has dropped 15.1 K.
Zarrin [17]

Answer: (a) The magnitude of its temperature change in degrees Celsius is 15.1^{o}C.

(b) The magnitude of the temperature change (change in T = 15.1 K) in degrees Fahrenheit is 27.2^{o}F.

Explanation:

(a)  Expression for change in temperature is as follows.

        |\Delta T| = |x - y|K

                         = 15.1 K

                    = |(x - 273.15) - (y - 273.15)|^{o}C

                    = |x - y|^{o}C

                    = 15.1^{o}C

Therefore, the magnitude of its temperature change in degrees Celsius is 15.1^{o}C.

(b)  Change in temperature from Celsius to Fahrenheit is as follows.

           F = 1.8C + 32

          C = \frac{F - 32}{1.8}

Since,   K = C + 273

or,    \Delta K = \Delta C = \frac{\Delta F}{1.8}

         \Delta F = 1.8 \Delta K

                      = 1.8 (15.1)

                      = 27.18^{o}F

or,                  = 27.2^{o}F

Thus, we can conclude that the magnitude of the temperature change (change in T = 15.1 K) in degrees Fahrenheit is 27.2^{o}F.

7 0
3 years ago
Read 2 more answers
Other questions:
  • A tightly sealed glass jar is an example of which type of system?
    15·2 answers
  • A bullet is at rest. It travels a distance of 0.34m in a time of 0.0095 seconds. Calculate its acceleration.
    8·1 answer
  • Which observation could lead to the conclusion that an object is non-living?
    13·2 answers
  • Please Help!!!! I WILL GIVE BRAINLIEST!!!!!!!!!!!!!
    8·1 answer
  • A mechanic needs to replace the motor for a merry-go-round. The merry-go-round should accelerate from rest to 1.5 rad/s in 7.0 s
    15·1 answer
  • Why is wood a renewable resource?
    13·1 answer
  • There are two groups of waves with the same amplitude. One contains waves of short wavelength and the other has waves of long wa
    7·1 answer
  • What happens to an object's mass as the object's acceleration increases but the force stays the same
    15·2 answers
  • suppose a block of lead of mass 0.4kg at temperature of 95°C is dropped in a 2 kg of water originally at 20°C in a container. wh
    6·1 answer
  • Which option is part of designing a set of experimental procedures?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!