What's the mass and weight of each of object if there were placed on mass gmars=3. 8n/kg

Answer:

d. 325 kg • m/s

Explanation:

Answer:

Kindly check explanation

Explanation:

Given the following information :

Distance between Angela and Blake = 15m

Angela's speed = 5m/s at t = 0

Angela's direction = Right = positive

Blake's speed = 3m/s at t = 0

Blake's direction = left = negative

Position or distance = speed × time

Hence,

Combined speed = (3 + 5) = 8m/s

Distance = 15m

Time = distance / speed

Time = 15 / 8

Time they meet = 1.875 seconds

Distance covered by Angela :

Speed × time

= 5 × 1.875 = 9.375 meters

The equation for the distance traveled by Angela is 5t and the distance covered by Angela  is 9.375 m.

The given parameter:

let the time at which Angela and Blake meet = t

The equation for the distance traveled by Angela = 5t

The time (t) at which Angela and Blake meet will be calculated using relative velocity concept:

since they are closing the distance together, we will add their velocities

(i.e they are working together and not against each other)

\((V_A +V_B) t = 15\\\\(5 + 3) t = 15\\\\8t = 15\\\\t = \frac{15}{8} \\\\t = 1.875 \ s\)

The distance covered by Angela = 1.875 s x 5 m/s = 9.375 m

The distance covered by Blake = 1.875 x 3 m/s = 5.625 m

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Answer:

Explanation:

To calculate the height of the table in this scenario, we can use the equations of motion. Let's define the variables first:

Initial velocity (u) = 2.50 m/s (given)

Time taken to reach the floor (t) = 0.391 s (given)

Acceleration due to gravity (g) = 9.8 m/s² (assuming the ball falls freely near the surface of the Earth)

Now, we can use the kinematic equation:

h = u * t + (1/2) * g * t²

Plugging in the given values, we have:

h = (2.50 m/s) * (0.391 s) + (1/2) * (9.8 m/s²) * (0.391 s)²

Simplifying the equation:

h = 0.97875 m + 0.07511 m

h = 1.05386 m

Therefore, the height of the table is approximately 1.05386 meters.

The speed of a vintage turntable is 33 1/3 mph (rotational speed). b) Calculate the duration of a 45 mph record.

a circular motion, particularly one centred on a fixed point, or the induction of a circular motion: To open the door, turn the handle 180 degrees. Axle-driven wheels revolve around them. The spacecraft circles the planet slowly as it rotates.

Geometry can be used to explain rotation's meaning in mathematics. As a result, it is described as an object moving around with a centre or axis. Any rotation is regarded as the movement of a certain space which freezes as least one point. We are aware of the earth's rotation.

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If a mountain goat starts a rock slide and the rocks crash down the slope 100 m. If the rocks reach the bottom in 5 s, then the acceleration of the rock would be 8 meters/second².

The rate of change of the velocity with respect to time is known as the acceleration of the object.

As given in the problem a mountain goat starts a rock slide and the rocks crash down the slope 100 m. If the rocks reach the bottom in 5 s,

initial velocity of rock = 0 m/s

displacement = 100 meters

time = 5 seconds

s = ut + 0.5at²

100 = 0 + 12.5a

a = 100/12.5

  = 8 meters/second²

Thus, the acceleration of the rock would be 8 meters/second².

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Answer:

1323

Explanation:

we know ,

weight = m*g

= 135 * 9.8 ( acceleration due to gravity in earth is 9.8 m/S2)

= 1323 N

According to the question as you walk to the grocery store you walk 800m north, 600m east, and 200m south at a speed of 1m/s. Then your velocity will be ( V = 0.5m/sec )

Velocity is the directional pace of an object in movement as an indication of its price of alternate in function as located from a specific body of reference and as measured by a particular widespread of time.

To find the velocity follow the following steps:

Displacement of 800m north, 600m east, and 200m south from the Cartesian coordination is given as 600\(\sqrt{2}\)

Velocity = displacement / time

Therefore time = distance / speed

Time = 800 + 600 + 200 / 1

Time = 1600s

Therefore velocity = 600\(\sqrt{2}\) / 1600

Velocity = 0.5m/sec

A Cartesian coordinate gadget in a plane is a coordinate system that specifies each point uniquely by a pair of numerical coordinates, which are the signed distances to the factor from constant perpendicular oriented strains, measured in the equal unit of duration.

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Answer:

\( \boxed{ \bold{ \huge{ \boxed {\sf{8.33 \: m \:/s \: }}}}} \)

Explanation:

Distance travelled = 200 metre

Time taken = 24 second

Velocity = ?

Finding the velocity

\( \boxed{ \sf{velocity = \frac{distance \: travelled \: }{time \: taken}}} \)

\( \dashrightarrow{ \sf{velocity = \frac{200 \: m}{24 \: s} }}\)

\( \dashrightarrow{ \sf{velocity = 8.33 \: m/s}}\)

Hope I helped!

Best regards!

Answer:

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

Explanation:

The magnetic flux through the loop is 0.00371 Wb.

To find the magnetic flux through the circular loop of wire, we can use the formula:

Φ = BAcosθ

where Φ is the magnetic flux, B is the magnitude of the magnetic field, A is the area of the loop, and θ is the angle between the magnetic field and the normal plane of the loop.

In this case, the field is perpendicular to the plane of the loop, so θ = 90° and cosθ = 0. Therefore, the formula simplifies to:

Φ = BA

We are given that the magnitude of the field is 0.621 T and the radius of the loop is 4.37 cm. To find the area of the loop, we can use the formula for the area of a circle:

A = πr²

where r is the radius of the circle. Substituting the values, we get:

A = π(0.0437 m)² = 0.00599 m²

Note that we converted the radius from cm to m to be consistent with the units of B (T = N/(m·s)).

Now we can calculate the magnetic flux:

Φ = BA = (0.621 T)(0.00599 m²) = 0.00371 Wb

Therefore, the magnetic flux through the loop is 0.00371 Wb.

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Answer:

3000J

Explanation:

Given parameters:

mass  = 400kg

speed  = 15m/s

Unknown:

P.E at the highest point of the roller coaster = ?

Solution:

Due to the law of conservation of energy, the potential energy at the highest point can be solved using the formula of the kinetic energy

  Potential energy  = \(\frac{1}{2}\) mv²

m is the mass

v is the velocity

    Potential energy =  \(\frac{1}{2}\)  x 400 x 15  = 3000J

Unit price = (total cost) / (number of units) . . . The unit is 'dollars per shirt'.

Unit price = ($ 300) / (80 shirts)

Unit price = $3.75 / shirt

Answer:

Which is the control group?

g. What must be done to make this experiment valid?

Explanation:

The number of impact craters on a moon's surface can be used to determine the relative age of that surface. This is because the rate at which impact craters are formed is roughly constant over time. Therefore, the more impact craters a surface has, the older it is.

To determine the relative age of a moon's surface, scientists can compare the number of impact craters on that surface to the number of impact craters on other surfaces of known age. For example, the Moon's surface is covered in impact craters, and the oldest parts of the Moon's surface have the most impact craters. The youngest parts of the Moon's surface have the fewest impact craters.

Scientists can also use the size of impact craters to determine the relative age of a moon's surface. Larger impact craters are formed by more energetic impacts, and these impacts are less frequent than smaller impacts. Therefore, older surfaces are more likely to have larger impact craters.

The relative age of a moon's surface can also be determined by studying the composition of the surface material. Older surfaces are more likely to be covered in material that has been modified by the impacts of meteorites. This material is often more heavily cratered and has a different composition than the material on younger surfaces.

By combining all of these methods, scientists can get a good estimate of the relative age of a moon's surface. This information can be used to study the history of the moon and to understand the processes that have shaped its surface.

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According to meteoric material, the solar system was formed around 4.6 billion years ago.

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The energy per photon associated with a frequency of 1260 kHz is 2.10×10^-25 J.

To calculate the energy per photon, we can use the equation: E = hf, where E represents the energy, h is the Planck's constant (6.62607015 × 10^-34 J·s), and f is the frequency of the photon. Given that the frequency is 1260 kHz, we need to convert it to hertz (Hz) by multiplying it by 10^3:

Frequency = 1260 kHz × 10^3 = 1.26 × 10^6 Hz

Now, we can substitute the values into the equation:

E = (6.62607015 × 10^-34 J·s) × (1.26 × 10^6 Hz)

E = 8.33929859 × 10^-28 J

The answer is given in scientific notation as 8.34 × 10^-28 J. However, the question specifically asks for the answer in the format of 0.00×10^0. To achieve this, we can multiply the result by 10^3 and adjust the exponent accordingly:

E = (8.33929859 × 10^-28 J) × (10^3)

E = 8.33929859 × 10^-25 J

Thus, the energy per photon associated with a frequency of 1260 kHz is 2.10×10^-25 J.

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Answer:

0.13m/s

Explanation:

jhghffhjffhjfhjfhjf

Answer:

65.74 km/hr

Explanation:

KE = 1/2mv²

I'm assuming the KE is 1.1x10⁴ J ?  It's hard to tell from what you wrote.

1.1x10⁴ J = 1/2(66 kg)v²

v² = 2(1.1x10⁴ J) / (66 kg) = 333.3 m²/s²

v = √333.3 m²/s² = 18.26 m/s

convert m/s to km/hr:

18.26 m/s x 1 km/1000 m x 3600 s/hr = 65.74 km/hr

The orbital period of the satellite circling the Earth at an altitude of 3500 km is 163 minutes

The orbital period for the satellite circling the Earth at an altitude of 3500 km can be obtained as follow:

T² = (4π² / GM) × a³

T² = [(4 × 3.14²) / (6.67×10¯¹¹ × 5.987×10²⁴)] × 9900000³

Take the square root of both sides

T = √[((4 × 3.14²) / (6.67×10¯¹¹ × 5.987×10²⁴)) × 9900000³]

T = 9789.15 s

Divide by 60 to express in minutes

T = 9789.15 / 60

T = 163 minutes

Thus, we can conclude that the orbital period of the satellite is 163 minutes

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The correct option is b. accelerate gently about halfway through the turn.

Completing a turn requires that you steer the vehicle smoothly and gradually, maintaining a safe and appropriate speed throughout the turn, and then straightening the wheels as you exit the turn. It is important to use signals to indicate your intentions to other drivers and to check for any pedestrians, cyclists, or other potential hazards before turning. You should not use more than one lane as you turn the corner, accelerate too quickly, or press the brake pedal throughout the turn.

Completing a turn requires that you gradually slow down before entering the turn, maintain a steady speed throughout the turn, and accelerate gently after completing the turn. Additionally, you should stay within your lane while turning and avoid using more than one lane.

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Pound and Rebka did an experiment of general relativity to test Einstein’s theory. When two identical atomic clocks (one on the ground floor, one on the top floor) were compared, then: B. The clock on the top floor ran a tiny bit slower.

General relativity is a theory of gravity capable of curving and warping space. Albert Einstein claimed that time is relative. It depends on how strong gravity affects it. The further an object is to the ground, the weaker the gravity and the slower the pace of time it experiences. That is why the clock on the top of a building runs a tiny bit slower than on the ground floor.

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The value of resistor R that gives the circuit in the figure a time constant of 22 μs is 220 Ω.

The circuit that is in the figure is shown below:Given that time constant (RC) = 22 μs. To find the value of resistor R, we need to use the formula for the time constant:

RC = τ, where R is the resistance and C is the capacitance of the circuit.

Rearranging the above formula, we get:R = τ / C

Where τ is the time constant and C is the capacitance of the circuit.

From the figure, the capacitance is given as 0.1 μF

.Substituting the values of τ and C in the above formula, we get:

R = (22 × 10⁻⁶ s) / (0.1 × 10⁻⁶ F)

R = 220 Ω

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If the current is doubled, the size of the magnetic field inside a long solenoid increases by a factor of two.

The magnetic field strength in a long solenoid is calculated using the equation above.

A wire coil that can generate a powerful magnetic field inside itself is called a solenoid. When the current is permitted to flow via a wire that is wrapped around a cylindrical object, the magnetic field produced is stronger.

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Answer:

8 g/cm³

Explanation:

density=mass/volume

volume=2*2*2=8 cm³

mass=64 g

density=64/8=8 g/cm³

The density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g is equal to 8 g/cm³.

Density can be defined as the material mass per unit of volume. The symbol commonly used to represent density ρ and the letter 'D' can also be used.

The mathematical equation of the density can be represented as written below:

Density = Mass /Volume

or,   ρ = m/V

The density of a material varies with pressure and temperature. There is a small variation for solids and liquids of any material but much larger for gases. Increasing the pressure of material decreases the volume and thus increases its density.

Given the volume of the cube =  2 cm x 2 cm x 2 cm

V = 8 cm³

The mass of the cube, m = 64 g

The density of the cube can be calculated from the above-mentioned formula:

Density = Mass of cube/volume

D = 64/8

D = 8 g/cm³

Therefore, the density of the cube is 8 g/cm³.

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Answer:

0.625m

Explanation:

Now Velocity of a wave ,V = frequency × wavelength

Wavelength =velocity /frequency

=500/800 =0.625m

It is important to describe the reference frame you are using when sharing information about position because it helps to determine the relative distance or position of an object.

A frame of reference is a particular position or point on which you base your judgment of a moving object.

Also, reference frames are used to specify the relationship between a moving observer and the phenomenon under observation.

A frame reference helps to measure the accurate position or distance traveled by an object.

Thus,  it is important to describe the reference frame you are using when sharing information about position because it helps to determine the relative distance or position of an object.

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Spring tides are extremely wide ranges of tidal highs and lows that occur during full moon or new moon phases when the gravitational forces of the Sun and Moon are at their strongest.

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