answer.
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
tekilochka
13 days ago
9

Ronnie kicks a playground ball with an initial velocity of 16 m/s at an angle of 40° relative to the ground. What is the approxi

mate horizontal component of the initial velocity?
Physics
2 answers:
Softa [913]13 days ago
7 0
The calculation for the horizontal component is performed as follows:
Vhorizontal = V · cos(angle)

For your instance, Vhorizontal = 16 · cos(40) equates to 12.3 m/s

Conclusion: 12.3 m/s
serg [1.1K]13 days ago
4 0

Answer:

Concluding answer: D 12.3 m/s

Explanation:

I just completed the quiz.

You might be interested in
A kinesin that is transporting a secretory vesicle uses approximately 80 ATP molecules/s. Each ATP provides a kinesin molecule w
inna [987]

Answer:

The force is  F = 8*10^{-12} \ N

Explanation:

According to the inquiry, we understand that

     The rate at which ATP molecules are utilized is R = 80 ATP/ s

       The energy yielded by a single ATP molecule is  E_{ATP} = 0.8 * 10^{-19} J

       The kinesin's velocity is  v = 800 nm/s = 800*10^{-9} m/s

The power generated by the ATP in one second can be expressed mathematically as

       P = E_{ATP} * R

After substituting the values

       P = 80 * 0.8*10^{-19 }

       P = 6.4 *10^{-18}J/s

Now this power can be represented mathematically as

       P = F * v

Where  F indicates the force exerted by the kinesin

Therefore

          F = \frac{P}{v}

after substituting input values

            F = \frac{6.4*0^{-18}}{800 *10^{-9}}

           F = 8*10^{-12} \ N

7 0
2 days ago
A force is applied to a block sliding along a surface (Figure 2). The magnitude of the force is 15 N, and the horizontal compone
Softa [913]

If my calculations are accurate, the angle is 67.5 degrees.

4 0
15 days ago
Read 2 more answers
a fixed mass of a n ideal gas is heated from 50 to 80C at a constant pressure at 1 atm and again at a constant pressure of 3 atm
inna [987]

Answer:

The required energy remains identical in both scenarios since the specific heat capacity (Cp) does not change with varying pressure.

Explanation:

Given;

initial temperature, t₁ = 50 °C

final temperature, t₂ = 80 °C

Temperature change, ΔT = 80 °C - 50 °C = 30 °C

Pressure for scenario one = 1 atm

Pressure for scenario two = 3 atm

The energy needed in both scenarios is expressed as;

Q = M*C_p*\delta T

Where;

Cp denotes specific heat capacity, which only varies with temperature and remains unaffected by pressure.

Hence, the energy required remains the same for both scenarios since specific heat capacity (Cp) is pressure-independent.

8 0
9 days ago
Two blocks are attached to opposite ends of a massless rope that goes over a massless, frictionless, stationary pulley. One of t
Softa [913]

Answer:

1/7 kg

Explanation:

Refer to the attached diagram for enhanced clarity regarding the question.

One of the blocks weighs 1.0 kg and accelerates downward at 3/4g.

g denotes the acceleration due to gravity.

Let M represent the block with known mass, while 'm' signifies the mass of the other block and 'a' refers to the acceleration of body M.

Given M = 1.0 kg and a = 3/4g.

By applying Newton's second law; \sum fy = ma_y

For the body with mass m;

T - mg = ma... (1)

For the body with mass M;

Mg - T = Ma... (2)

Combining equations 1 and 2 gives;

+Mg -mg = ma + Ma

Ma-Mg = -mg-ma

M(a-g) = -m(a+g)

Substituting M = 1.0 kg and a = 3/4g into this equation leads to;

3/4 g-g = -m(3/4 g+g)

3/4 g-g = -m(7/4 g)

-g/4 = -m(7/4 g)

1/4 = 7m/4

Multiplying gives: 28m = 4

m = 1/7 kg

Hence, the mass of the other box is 1/7 kg

3 0
6 days ago
A champion athlete can produce one horsepower (746 W) for a short period of time. The number of 16-cm-high steps a 70-kg athlete
Sav [1105]

Answer:

407 steps

Explanation:

Based on the question,

P = mgh/t........... Equation 1

Where P stands for power, m is mass, g denotes gravity, h is height, and t represents time.

Rearranging the equation to solve for h, we have:

h = Pt/mg............. Equation 2

Providing values: P = 746 W, t = 1 minute = 60 seconds, m = 70 kg.

Given constant: g = 9.8 m/s²

By substituting into equation 2

h = 746(60)/(70×9.8)

h = 44760/686

h = 65.25 m

h = 6525 cm

Calculating number of steps: 6525/16

The resulting number of steps = 407 steps

6 0
9 days ago
Other questions:
  • What is the maximum value the string tension can have before the can slips? The coefficient of static friction between the can a
    7·1 answer
  • At which latitudes shown in the image of Earth do people experience the greatest tangential speed? Explain why.
    10·2 answers
  • A semi is traveling down the highway at a velocity of v = 26 m/s. The driver observes a wreck ahead, locks his brakes, and begin
    15·1 answer
  • A 248-g piece of copper is dropped into 390 mL of water at 22.6 °C. The final temperature of the water was measured as 39.9 °C.
    10·1 answer
  • On the earth, when an astronaut throws a 0.250-kg stone vertically upward, it returns to his hand a time T later. On planet X he
    10·1 answer
  • A 2600-m-high mountain is located on the equator. how much faster does a climber on top of the mountain move than a surfer at a
    14·1 answer
  • You are asked to design a retroreflector using two mirrors that will reflect a laser beam by 180 degrees independent of the inci
    11·1 answer
  • A uniform 1.0-N meter stick is suspended horizontally by vertical strings attached at each end. A 2.0-N weight is suspended from
    8·1 answer
  • You ride a roller coaster with a loop-the-loop. Compare the normal force that the seat exerts on you to the force that Earth exe
    14·1 answer
  • An electron is orbiting a nucleus which has a charge of 19e, under the action of the coulomb force at a radius of 1.15 × 10-10 m
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!