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4 years ago

What are two ways in which you can increase the potential energy of a marble on a ramp?

Physics

1 answer:

valkas [14]4 years ago

8 0

Answer:

As the marble starts rolling down the roller coaster, the amount of potential energy stored in the marble decreases while its kinetic energy increases. Potential energy is also converted into heat energy due to friction.

Explanation:

As the marble rolls down the hill its potential energy is converted to kinetic energy (its height decreases, but its velocity increases). When the marble goes back up the loop its height increases again and its velocity decreases, changing kinetic energy into potential energy.

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A motorcycle moving at 13.2 m/s increases in speed to 25.7 m/s over a period of 8.6 s. If the motorcycle's mass is 352 kg, what

Ira Lisetskai [31]

Answer:

510.4 N

Explanation:

u = 13.2 m /s, v = 25.7 m/s, t = 8.6 s, m = 352 kg

Use first equation of motion

v = u + a t

a = (25.7 - 13.2) / 8.6 = 1.45 m/s^2

Use Newton's second law

F = m a = 352 x 1.45 = 510.4 N

8 0

4 years ago

Joshua programs a robotic arm to place a block in a box by following the sequence of commands in the table. a 2-column table wit

GarryVolchara [31]

Step 2 does the robotic arm do work on the block. Joshua programs a robotic arm to place a block in a box. a four-row, two-column table.

<h3>What is a robotic arm?</h3>

A robotic arm is a type of artificial arm that may be programmed to do tasks similar to those of a human arm.

The arm can be the sum of the mechanism or part of a larger robot. Joints connect the manipulator's linkages, allowing rotational or translational motion.

By following the directions in the table, Joshua programs a robotic arm to place a block in a box. a four-row, two-column table.

The items in the first column labeled step are 1, 2, 3, and 4. Grip block, elevate block 10 cm, hold for 20 seconds, release block are the items in the second column labeled command.

Step 2 does the robotic arm do work on the block.

Hence,step 2 is the correct answer.

To learn more about the robotic arm refer:

brainly.com/question/14768119

#SPJ1

6 0

2 years ago

Hannah bought a potted rose plant. She’s looking for a place to put it. Where is the rose plant most likely to thrive?

zavuch27 [327]

Answer: C. )in the backyard with bright sunlight

Explanation: its better for the rose plant.

6 0

4 years ago

A 2 kg object being pulled across the floor with a speed of 10 m/sec is suddenly

zvonat [6]

Answer:

The frictional force producing this deceleration would have a magnitude of $4\; \rm N$ .

Explanation:

The velocity of this object changed by $\Delta v = (-10\; \rm m\cdot s^{-1})$ in $\Delta t = 5\; \rm s$ . The acceleration of this object would be:

$\begin{aligned}a &= \frac{\Delta v}{\Delta t} \\ &= \frac{-10\; \rm m\cdot s^{-1}}{5\; \rm s} = -2\; \rm m\cdot s^{-2}\end{aligned}$ .

Let $m$ denote the mass of this object. By Newton's Second Law of Motion, the net force on this object would be:

$\begin{aligned}F &= m \, a \\ &= 2\; \rm kg \times (-2\; \rm m\cdot s^{-2}) \\ &= -4\; \rm N\end{aligned}$ .

( $1\; {\rm kg \cdot m \cdot s^{-2} = 1\; {\rm N}$ .)

If the floor is level, friction would be the only unbalanced force on this object. Thus, the magnitude of the frictional force on this object would also be $4\; {\rm N}$ , same as the magnitude of the net force on this object.

5 0

3 years ago

PLEASE HELP!!!!

Aleks [24]

The answer is step by step 65

4 0

3 years ago

Read 2 more answers