Emily throws a soccer ball out of her dorm window to Allison, who is waiting below to catch it. If Emily throws the ball at an angle of 30° below horizontal with a speed of 12 m/s, how far from the base of the dorm should Allison stand to catch the ball? Assume the vertical distance between where Emily releases the ball and Allison catches it is 6.0 m.

Q: 2. A 4.0 kg object has a velocity of 3i m/s at one instant. Eight seconds later, its velocity is (8i…

A: given data as per question m = 4kg  u   =  3i

Q: A rectangular brass plate has a dimension of 50 cm x 30 cm at 10oC. At what temperature should it be…

A: Solution: Given that rectangular brass plate has a dimension of 50 cm x 30 cm T1 = 10 C increase its…

Q: A circular disk with a radius of 0.38 m is subject to 2 tangentially applied forces. The disc is…

A:

Q: (a) Figure 5 shows two circular arcs with radius a = 10.0 cm and b = 5.0 cm. Both arcs with an angle…

A:

Q: 26. Mr. Labrador needs an extra rectangular table in his office. He has one made with a surface 0.38…

A: Write the given values with the suitable variables. A=0.38 m2l=76.2 cm=0.762 m Here, A is the area…

Q: The diagram represents a standing wave on a string. Which harmonic is this?

A: Given data: The figure of a standing wave is given.

Q: Two point charges of values +3.4 and +6.6 mC, respectively, are separated by 0.20 m. What is the…

A: Potential energy is given by the formula, U = ke *q1 *q2 /r Given, q1 = +3.4 mC q2 = +6.6 mC r =…

Q: A particle moves along the x-axis so that the position s is given as a function of the time at s(t)…

A:

Q: A battery is supplying electrical power to a single resistor R. If the total current in the circuit…

A: Data provided:  Emf (ε) = 8 V Current (I) = 0.75 A Internal resistance (r) = 1 Ω Asked: The external…

Q: Find acceleration Final velocity=5.5 m/s Initial velocity=2.3 m/s Time=2 s

A: Given data : Initial velocity=U Final velocity=V Time=t   Required : Acceleration

Q: 30) Why is water not used in a barometer?: * OA) Because its density is greater than that of…

A: The correct option is (C) Because water height at the same temperature would be much higher.

Q: caused by blockage--- one or more arteries of the .heart muscle Heart valve defects O Heart attack O…

A:

Q: . A horizontal platform 6m in diameter revolves so that a point on its rim moves 6.50m/s. Find its…

A: Answer:-  Given  Diameter (d) = 6 m  Radius (r) = d/2  r = 6/ 2 = 3 m  Speed (V) = 6.50 m/s  We know…

Q: The battery with unknown EMF internal resistance r is supplying electrical power of 18 mw to a…

A:

Q: Calculate the work done when 75.4 mole of an ideal gas is expanded reversibly and isothermally from…

A:

Q: electrons

A:

Q: 7. A wire carries a steady current of 0.1 A over a period of 20 s. What total charge passes through…

A: Given data : Time=t Current=i   To find : Total charge

Q: (b) It was measured that the electric field at point P with magnitude 450 N/C just outside the outer…

A:

Q: A 3.00 kg and 2.00 kg object have initial velocities of 3.00 m/s i  and -2.00 m/s i respectively.…

A: Write the given values with the suitable variables. m1=3 kgm2=2 kgu→1=3i^ m/su→2=-2i^ m/sv→1=0.75i^…

Q: A parallel‑plate capacitor has a capacitance of 20 µF. What potential difference across the plates…

A: Given, Capacitance=20 µF Charge=7.2 × 10-4 C We have to find the potential difference across the…

Q: Part A The flash unit in a camera uses a special circuit to "step up" the 3.0 V from the batteries…

A:

Q: Question 22: At what angle a student must throw a ball in order to achieve the maximum ranget (a)…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: Guide Questions: 1. Why would you not want to hook up simple cireuit shown in the figure below?…

A:

Q: 63     In 1780, in what is now referred to as "Brady's Leap," Captain Sam Brady of the U.S.…

A:

Q: How much is the mass for a charge of +60pC

A: Solution: Given that charge = +60pC to find the mass

Q: A beam of light reflects and refracts at point A on the interface between material 1 (n1 = 1.33) and…

A: Given data: The refractive index of material 1 is n1=1.33. The refractive index of material 1 is…

Q: Calculate the speed of a satellite in orbit 9.5 × 103 km above Jupiter. (rJ = 7.18 × 107 m, MJ =…

A: Given Data:- Mass of Jupiter is MJ=1.90×1027 kg Radius of the Jupiter is rJ=7.18×107 m The satellite…

Q: The motion of an object along a straight line is modelled by the equation v = -t(t-5) where v m/s is…

A:

Q: A 2.0 mm diameter iron wire (resistivity, p=9.7x10-8 ohms-m) carries a current of 2.5 A. Determine…

A: Given: The diameter of the wire is 2 mm = 0.002 m.                                    {  here 1 mm =…

Q: An uncharged capacitor is connected to the terminals of a 4.0 V battery, and 9.0 µC flows to the…

A: Given, Potential difference across the battery, V1 = 4.0 V charge flows to the positive plate, q =…

Q: Question A ball is dropped onto a solid floor from an initial height of ho. If the coefficient of…

A:

Q: An iceberg (sg = 0.917) floats in the ocean (sg = 1.025). What percent of the volume of the iceberg…

A: Given, Specific gravity of iceberg, SGiceberg = 0.917 specific gravity of ocean, SGocean = 1.025

Q: e speed of light in material rad ed Cherenkov light. Find the m ule that an electron must have

A: from the definition of refractibe index,n=cvv=cn=3×1081.33=2.25×108m/s.Now, E=12mv2…

Q: Angle to get maximum range is about 45 degrees when an object is sent from ground level. Is it the…

A: Given information :- It is a common fact that we get maximum range Rmax at a projection angle of  θ…

Q: What indicate the precision of the systolic pressure The onset of K sounds indicate systolic…

A: The average Finapres systolic bias (IAP - Finapres) was 2.2 mm Hg (s.d. ±12.4) with limits of…

Q: The velocity of a particle moving along the x-axis varies according to the expression vx = 40 – 5t²,…

A:

Q: Given the circular coil shown below, calculate the magnitude of: a. Magnetic moment b. Torque on the…

A:

Q: Neutron is a neutral particle with a mass of 1.67x10^-27 kg. Compute the de Broglie wavelength for…

A:

Q: A copper wire (µ = 1.256x10^-6 T-m/A) was used in a solenoid wire of 1000 turns in 20cm of solenoid…

A:

Q: 7- A homogeneous wire of mass (300 g) and length (6 m) The rope passes over a pulley and a weight of…

A:

Q: Figure 2 shows that a river has a steady speed of viver Sam swims upstream for a distance of 2.00km…

A:

Q: Calculate the surface escape velocities for Mars.  rM = 3.3× 106 m, MM = 6 × 1022 kg).

A: Given, radius of mars, rm = 3.3×106 m mass of the mars, M = 6×1022 kg

Q: 2. Two horsepower is used to lift a 150 kg concrete block up the highest floor of a building. What…

A:

Q: A 2.0 mm diameter iron wire ( resistivity, p = 9.7 x 10- 0-m) carries a current of 2.5 A. Determine…

A: Solution: Given that diameter =  2mm resistivity = 9.7x10-8 ohm m current = 2.5 A length = 20 m to…

Q: Shown below is a small ball of mass m attached to a string of length a. A small peg is located a…

A: Force brings about motion and changes in it. This force produce acceleration and hence the changes…

Q: When you fly in an airplane at night in smooth air, you have no sensation of motion, even though the…

A: Motion perpendicular are independent of each other. Motion can be uniform or accelerated. Motion is…

Q: In a given fluid, positive ions, each with 1 excess protons, move to the right at a steady rate of…

A: We have n1=1.9*1019 positive ions each containing one excess proton i.e., charge q1=+e moving to the…

Q: Three resistors: R1 = 5 0,R2 = 3 Q, and R3 = 4 Q are connected in series to each other. A voltmeter…

A: Given Resistance of the resistors are R1=5 Ω, R2=3 Ω and R3=4 Ω Voltage across R2 is V2=6 V   We…

Q: 15.8 V 3.20 40 0.8 Q 9.5 V "(oop 1 1.5 0 20 0.7 0 3.8 0 28 V 17 V 0.5 0 Which of the following…

A:

Q: An electron has a speed of 0.75c and moves in the opposite direction with respect to the direction…

A: Write the given values with the suitable variables. v=0.75cE=2.5×104 N/Cq=1.6×10-19 C Here, v, E,…

Projectile Motion